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Tytuł:
Middle Devonian Foraminifera from the Holy Cross Mountains
Autorzy:
Gajewska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/2177468.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
foraminifera
Devonian
systematics
palaeobiogeography
Opis:
The Middle Devonian was an exceptional time for foraminiferal evolution because of the emergence of the first true calcareous multilocular taxa. Despite being key forms for an understanding of the origin of foraminiferal multilocularity, which is one of the most intriguing events in the evolutionary history of the group, they are largely unstudied. These unique foraminifera, including representatives of the genera Cremsia, Moravammina, Pseudopalmula, Semitextularia, and Vasicekia, are presented herein as well as foraminifer-like microfossils of uncertain biological position. The studied material comes from the Middle Givetian strata of the Miłoszów section and the Eifelian part of the Grzegorzowice-Skały section (Holy Cross Mountains, Poland). Described isolated specimens are in an exceptionally good state of preservation on a worldwide scale, which enabled the detailed analysis of test morphologies, complementing previous papers based on less well-preserved material. The suggested systematics of the foraminifera collected attempts to revise scarce taxonomic data that is still under debate, especially the classification of Moravammina, Cremsia, and Vasicekia. The Devonian foraminifers presented were prominent endobenthic and epibenthic inhabitants of common organic coral-stromatoporoid buildups. Palaeobiogeographical records show that during the Middle Devonian, the studied forms extended their exclusive European distribution into further Laurussian shelves and shallow seas, located in the northern and southeastern parts of the Rheic basin. This assumes that such assemblages may be used as palaeoenvironmental indicators. However, at present, their correlative potential is unknown.
Źródło:
Annales Societatis Geologorum Poloniae; 2022, 92, 4; 411--424
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic approach to systematics and phylogeny of Echinostomatidae
Autorzy:
Grabda-Kazubska, B.
Laskowski, Z.
Borsuk, P.
Powiązania:
https://bibliotekanauki.pl/articles/839673.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
phylogenesis
systematics
Echinostomatidae
chaetotaxy
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Devonian brachiopods from northern Maïder (eastern Anti-Atlas, Morocco)
Autorzy:
Halamski, Adam T.
Baliński, Andrzej
Koppka, Jens
Powiązania:
https://bibliotekanauki.pl/articles/2133938.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
systematics
Brachiopoda
Morocco
Devonian
Eifelian
Givetian
Opis:
Sixty brachiopod species are reported from the Taboumakhlouf Formation (upper Eifelian) and the Bou Dib Formation (upper Eifelian to Givetian) of Jbel Issoumour, northern Maïder, Anti-Atlas, Morocco, on the basis of collections made by Volker Ebbighausen. The stratigraphy is based on reports of co-occurring trilobite assemblages. The relatively diversified fauna pre-dates the Taghanic event and is dominated in terms of diversity by atrypides and rhynchonellides (11 species each); other frequent species include Poloniproductus varians, Aulacella prisca, Tyersella tetragona, Schizophoria schnuri, Athyris ex gr. concentrica, Yeothyris? sinuata, and Thomasaria simplex. Spinatrypa ennigaldinannae Halamski and Baliński sp. nov. from the upper Eifelian is characterised by a transverse shell, typically 16–18 mm wide with 19–22 ribs. Prodavidsonia ebbigahuseni Halamski and Baliński sp. nov. differs from other representatives of the genus in having nearly flat shells. Eressella coronata Halamski and Baliński, nom. nov. is proposed as a replacement name for the permanently invalid Rhynchonella coronata Kayser, 1871 (non R. coronata Moore, 1861). Thomasaria simplex is documented as being a particularly variable species (costation, tongue, interarea position), so its broad taxonomic treatment is favoured. The brachiopod fauna shows distinct Rhenish affinities (numerous species in common with the Eifel and the Holy Cross Mountains) like the coeval fauna from southern Maïder, described previously. The Middle Devonian brachiopod fauna from the whole Maïder (north, described here and south, described previously) totals 87 species.
Źródło:
Annales Societatis Geologorum Poloniae; 2022, 92, 1; s. 1--86
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How many kingdoms of life? Eukaryotic phylogeny and philosophy of systematics
Autorzy:
Lamza, Lukasz
Powiązania:
https://bibliotekanauki.pl/articles/690966.pdf
Data publikacji:
2019
Wydawca:
Copernicus Center Press
Tematy:
taxonomy
systematics
philosophy of biology
eukaryotes
Protista
taxonomy;
systematics;
philosophy of biology;
eukaryotes;
protista
Opis:
According to contemporary understanding of the universal tree of life, the traditionally recognized kingdoms of eukaryotic organisms-Protista, Fungi, Animalia and Plantae-are irregularly interspersed in a vast phylogenetic tree. There are numerous groups that in any Linnaean classification advised by phylogenetic relationships (i.e. a Hennigian system) would form sister groups to those kingdoms, therefore requiring us to admit them the same rank. In practice, this would lead to the creation of ca. 25-30 new kingdoms that would now be listed among animals and plants as “major types of life”. This poses problems of an aesthetic and educational nature. There are, broadly speaking, two ways to deal with that issue: a) ignore the aesthetic and educational arguments and propose classification systems that are fully consistent with the Hennigian principles of phylogenetic classification, i.e. are only composed of monophyletic taxa; b) ignore Hennigian principles and bunch small, relatively uncharacteristic groups into paraphyletic taxa, creating systems that are more convenient. In the paper, I present the debate and analyze the pros and cons of both options, briefly commenting on the deeper, third resolution, which would be to abandon classification systems entirely. Recent advances in eukaryotic classification and phylogeny are commented in the light of the philosophical question of the purpose and design principles of biological classification systems.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2019, 66; 203-227
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eressella, a new uncinuloid brachiopod genus from the Middle Devonian of Europe and Africa
Autorzy:
Halamski, A. T.
Baliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/191822.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
systematics
Brachiopoda
Rhynchonellida
Devonian
Germany
Polska
Morocco
Opis:
Eressella, a new genus of rhynchonellide brachiopods belonging to the superfamily Uncinuloidea Rzhonsnitskaya, 1956, is described with Rhynchonella coronata Kayser, 1871, as the type and only species. It is characterised by a dorsibiconvex profile with a resupinate ventral valve, costae rounded posteriorly, but acute and developing ventrally directed spur-like protuberances anteriorly, small dental cavities, cardinal process multilobed posteriorly and massive anteriorly, and the presence of a septalium and thick dorsal median septum. Given the present state of flux in the systematics of the superfamily, it is conventionally placed within the family Uncinulidae Rzhonsnitskaya, 1956, although similarities with the subfamily Betterbergiinae Savage, 1996 and the family Eucharitinidae Sartenaer, 2015 are also noted. Eressella coronata, hitherto the only representative of the genus, is known from the Eifel Hills (Eifelian, mainly middle Eifelian), from central Poland (especially from the Eifelian of the Holy Cross Mts.), and from the Moroccan Anti-Atlas (late Eifelian to early Givetian, details uncertain).
Źródło:
Annales Societatis Geologorum Poloniae; 2018, 88, 1; 21-35
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taxonomic differentiation of Salix retusa agg. (Salicaceae) based on leaf characteristics
Autorzy:
Kosiński, Piotr
Adreas Hilpold, Adam Boratyński
Powiązania:
https://bibliotekanauki.pl/articles/957076.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
oreophytes
alpine plants
biometrics
morphology
systematics
Opis:
The complex of Salix retusa includes S. retusa s.s., S serpyllifolia and S. kitaibeliana, small, prostrate willows occurring in the subalpine and alpine vegetation belts of the mountains of Central Europe: the Pyrenees, Alps, Apennines, Dynaric Alps, Carpathians and Rila. The systematic positions of these taxa are not fully resolved and are still disputed. The aim of the present study was to biometrically verify differences in leaf characteristics between these taxa. Material was collected from 47 populations, each represented by 25–52 individuals (33 on average). The study was based on 14 leaf morphological characters measured from scans using Win Folia software. The principal component analysis (PCA), Ward’s agglomeration method, the K-means cluster analysis (K-MCA) and Kruskal-Wallis tests were applied to verify the relationships between taxa and their populations. Differences between average leaf characteristics of S. retusa s.s., S. serpyllifolia and S. kitaibeliana were detected. The Pyrenean populations of S. retusa s.s. appeared more similar to S. serpyllifolia. Within the Alpine populations of S. serpyllifolia, several individuals resembling S. retusa s.s. were detected, and vice versa, within populations of S. retusa s.s., and there were also individuals similar to S. serpyllifolia. The controversial S. kitaibeliana was found to be typical of the Tatra Mountains. The results support close taxonomic relations, but also the separate status of S. retusa, S. serpyllifolia and S. kitaibeliana. The differences between them are mainly of a quantitative nature.
Źródło:
Dendrobiology; 2017, 78; 40-50
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oxfordian brachiopods from the Saïda and Frenda mountains (Tlemcenian Domain, north-western Algeria)
Autorzy:
Halamski, A. T.
Cherif, A.
Powiązania:
https://bibliotekanauki.pl/articles/191804.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Brachiopoda
Jurassic
Algeria
Atlas Mountains
systematics
palaeoecology
stratigraphy
Opis:
Five brachiopod species are reported from two middle to upper Oxfordian (Late Jurassic) outcrops, situated in the Saïda and Frenda mountains (Tlemcenian Domain, north-western Algeria) and belonging to the heterochronous (Callovian to Oxfordian, locally to the Kimmeridgian) Argiles de Saïda Formation (Saïda Clay Formation). The upper Oxfordian (probably Dichotomoceras bifurcatus Zone) outcrop A yielded Dictyothyris kurri and Loboidothyridoidea indet. The middle Oxfordian (Liosphinctes plicatilis Zone, Cardioceras vertebrale Subzone) outcrop B yielded Monticlarella rollieri, Karadagithyris boullierae sp. n., and Zittelina sp.; this is the first report of the last-mentioned genus from Africa. Karadagithyris boullierae sp. n. is a link between previously known Bajocian to Bathonian (Callovian?) Karadagithyris s.s. and Tithonian to Lower Cretaceous species, formerly segregated as Svaljavithyris; the latter is considered herein as synonym of Karadagithyris. It is characterised by a plano-uniplicate anterior commissure and a suberect beak. The adult loop of Zittelina is confirmed as bilacunar (kingeniform) and not diploform (campagiform). The bulk of the assemblages comprises small and either smooth or finely ornamented species and thus represents a low-energy environment. The lack of modern revisions of the reported species in their type areas is the reason why only Dictyothyris kurri may be used as an index species for the middle to late Oxfordian.
Źródło:
Annales Societatis Geologorum Poloniae; 2017, 87, 2; 141-156
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mesozoic spores of Poland – a revision of selected taxa
Mezozoiczne spory Polski – przegląd wybranych taksonów
Autorzy:
Waksmundzka, M.
Powiązania:
https://bibliotekanauki.pl/articles/2062009.pdf
Data publikacji:
2014
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Mesozoic spores
taxonomy
systematics
spory mezozoiczne
taksonomia
systematyka
Opis:
The study presents a taxonomic analysis of 44 taxa from the Mesozoic deposits of Poland. The spores have been ordered in a systematic way. Variability in interpretations of similar morphological or typical features of individual taxa have been presented. In case of same species the influence of the postdepositional processes on the morphological features of spores have been suggested.
Analizowano taksonomicznie 44 taksony z utworów mezozoiku Polski. Uporządkowano je według sztucznej systematyki. Przy opisie niektórych taksonów spor zasugerowano wpływ czynników postdepozycyjnych na ich cechy morfologiczne.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2014, 460; 25-87
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the morphology and evolution of the Cucullograptinae (Monograptidae, Graptolithina)
Morfologia i ewolucja Cucullograptinae (Monograptidae, Graptolithina)
Morfologija i ehboljucija Cucullograptinae (Monograptidae, Graptolithina)
Autorzy:
Urbanek, A.
Powiązania:
https://bibliotekanauki.pl/articles/22204.pdf
Data publikacji:
1966
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
morphology
evolution
Cucullograptinae
Monograptidae
Graptolithina
paleontology
terminology
systematics
Źródło:
Acta Palaeontologica Polonica; 1966, 11, 3-4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The PhyloCode, or alternative nomenclature: Why it is not beneficial to palaeontology, either
Autorzy:
Monsch, K.A.
Powiązania:
https://bibliotekanauki.pl/articles/23327.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
nomenclature
paleontology
Phylocode name
phylogenesis
systematics
taxonomy
Opis:
Methodological stability in biological nomenclature is being upset recently, with potential consequences for palaeontology. Some systematists, inspired mainly by de Queiroz and Gauthier (1990, 1992, 1994), reject traditional nomenclature in favour of an alternative “Phylogenetic Nomenclature” (PN). Following de Queiroz (2006) I consistently call this Phylogenetic Nomenclature, rather than Phylogenetic taxonomy, as it is often done. Important tenets of PN are the abandonment of hierarchic ranks and binomial names, and establishing name definitions based on cladogram shape (node−, stem−, and stem−modified node−based definitions), apomorphies (apomorphy−based definitions), or a combination of apomorphies and tree topology (apomorphy−modified node−based definition). For an explanation of such definitions, see Cantino and de Queiroz (2003) and Sereno (2005). The practice of Phylogenetic Nomenclature is laid out in an Internet document, the PhyloCode (Cantino and de Queiroz 2003). PN is seen as the natural next step in the evolution of taxonomy: from Linnaeus’ (1753, 1758) “creationist taxonomy” to Hennig’s (1966) cladistic taxonomy. Hence, Linnaeus’ ideas should be removed from nomenclature, which will then reflect phylogeny. Despite the dominance of cladistics as a framework for taxonomy, the validity of its philosophies and methodologies are still questioned (e.g., Szalay 2000). I encourage everyone, independently of school of taxonomy adhered to, to take interest in PN, because: (1) we are all creators or users of taxonomies and classifications, (2) PN is radically different from the current standard, (3) the Preface to the PhyloCode suggests it should ultimately replace the current Codes of Nomenclature (of bacteria, LaPage et al. 1992; of Zoology, ICZN 1999; of Botany, Greuter et al. 2000). I argue herein, why palaeontologists should not follow PN.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Devonian uncinuloids (Brachiopoda, Rhynchonellida) from North Africa and Central Europe
Autorzy:
Halamski, Adam T.
Baliński, Andrzej
Jansen, Ulrich
Powiązania:
https://bibliotekanauki.pl/articles/1836359.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
systematics
Brachiopoda
Rhynchonellida
Devonian
Germany
Polska
Morocco
Opis:
The paper includes a taxonomic revision of four externally similar Middle Devonian rhynchonellide species from northwestern Africa (Maïder, Tindouf Syncline) and Central Europe (Eifel, Bergisches Land, Holy Cross Mts.), considered in recent papers as representatives of Kransia Westbroek, 1967 or Nalivkinaria Rzhonsnitskaya, 1968. All four possess a septalium and a multilamellate cardinal process, the assignment to Nalivkinaria, having a bifid cardinal process, is therefore clearly inappropriate. Lebanzuella? issoumourensis (Drot, 1971) is present in the Givetian of Africa; two subspecies, L.? issoumourensis issoumourensis from Jbel Issoumour and L.? issoumourensis smarensis ssp. nov. from Western Sahara, are distinguished by their biometric characteristics. The other two species are included in Kransia (Fatimaerhynchia) subgen. nov. differing from Kransia (K.) in the presence of a septalium; the occurrence of such a variable structure is considered to be justification for distinction at the subgenus level. Kransia (Fatimaerhynchia) goldfussii (Schnur, 1853) is an Eifelian species. Kransia (Fatimaerhynchia?) aff. goldfussii from the Givetian of Bilveringsen is a separate species (larger, more transverse, more strongly ornamented), which is not described because of insufficient material. Kransia (Fatimaerhynchia) signata (Schnur, 1851) is present in the Middle Devonian of Jbel Issoumour, the middle Eifelian of the Eifel and the (upper?) Givetian of the Holy Cross Mountains.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 1; 51-73
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isospora dendrocinclae n. sp. (Apicomplexa: Eimeriidae) from the Whitechinned Woodcreeper (Dendrocincla merula) from South America
Autorzy:
McQuistion, Thomas E.
Galewsky, Samuel
Capparella, Angelo P.
Rebling, Fredrick
Powiązania:
https://bibliotekanauki.pl/articles/763497.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Isospora dendrocinclae, Passeriformes, Dendrocolaptidae, phylogenetics, ribosomal RNA, molecular systematics
Opis:
A new species of Isospora is described from the fecal contents of the white-chinned woodcreeper, Dendrocincla merula merula from Guyana and Dendrocincla merula barletti from Peru. Sporulated oocysts are subspherical to ovoid, 19.2 × 16.5 (15–23 × 14.5–19) μm, with a smooth, colorless, bilayered wall. The average shape index is 1.2. No micropyle or oocyst residuum are present, but the oocysts contain one polar granule. Sporocysts are ovoid, 12.9 × 8.3 (12–14 × 7–10) μm, average shape index of 1.7 with a smooth, single layered wall and composed of a small, knoblike Stieda body and a slightly larger, bubble shaped substieda body. The two sporocysts each contain a compact residuum composed of coarse, non-uniform granules and four randomly arranged, vermiform sporozoites each with a terminal refractile body and a centrally located nucleus. DNA sequences representing ITS-1 and ITS-4 regions of the 5.8S rDNA gene from the two isolates were amplified and compared. In addition to the two isolates showing similar morphological characteristics, they also had identical nucleotide sequences for the ITS-1 and ITS-4 regions of the 5.8S ribosomal gene.
Źródło:
Acta Protozoologica; 2010, 49, 2
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cenozoic fossil fishes of the extinct alepisauroid family Polymerichthyidae from the Sakhalin Island, Russia
Autorzy:
NAZARKIN, MIKHAIL V.
Powiązania:
https://bibliotekanauki.pl/articles/945438.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
teleostei
aulopiformes
polymerichthys
morphological analysis
systematics
tertiary
russia
sakhalin
Opis:
Five incomplete skeletons of fishes of the extinct monotypic family Polymerichthyidae (Aulopiformes: Alepisauroidei) from the Paleogene and Neogene of Sakhalin Island, Russia, are identified as Polymerichthys sp., described in detail, and compared with known representatives of the family. The results of this study suggest that polymerichthyids were characterized by a prolonged rostrum, behind which the upper jaw symphysis was placed; by an anal fin without spinules, contrary to what was assumed earlier; and, probably, by sexual dimorphism. Morphological analysis reveals the closest relationships of Polymerichthyidae to be with Recent Alepisauridae, but their taxonomic position is still unresolved. The new material is the second occurrence of articulated skeleton of fishes of this family. The new findings from Sakhalin expand the known geographical distribution of Pacific polymerichthyids by about 12° of latitude, and extend the time interval for this family to as early as the late Oligocene.
Źródło:
Acta Palaeontologica Polonica; 2016, 61, 4; 829-838
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sieve-type normal pore canals in Jurassic ostracods: A review with description of a new genus
Autorzy:
Lord, A.R.
Cabral, M.C.
Danielopol, D.L.
Powiązania:
https://bibliotekanauki.pl/articles/2082183.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Ostracoda
Cytheroidea
normal pore canals
systematics
Jurassic
Cretaceous
Europe
Opis:
Sieve-type normal pore canals (StPC) occur commonly in living and fossil cytheroid ostracods but their biological function(s) and evolutionary history are poorly known. The new genus Minyocythere and its four species: Minyocythere macroporosa sp. nov., M. angulata sp. nov., M. maculosa, and M. tuberculata from the Middle Jurassic have StPC prominently developed, display a range of normal pore canals, and provide a context for review of the geological record and palaeobiological potential of these structures, and their application as a taxonomic tool compared with classical approaches. The related Cretaceous genus Dolocythere is reviewed and Dolocythere amphistiela sp. nov. described. The significance of StPC for comparative morphology, systematics, palaeobiology and environmental interpretation are discussed. The range of normal pore canals observed, including StPC, is greater than previously described and several types can occur on one animal implying different life functions. The potential of normal pore canals especially StPC for systematic use is established although good preservation is essential. The functional significance of normal pore canals and their setae must be verified with living material before their evolutionary history can be deduced and their application to palaeoenvironmental interpretation and modern environmental monitoring enhanced.
Źródło:
Acta Palaeontologica Polonica; 2020, 65, 2; 313-349
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New records of Tmaegoceras lacordarii (Michelin, 1835) from the Lower Jurassic Arietenkalk Formation of SW Germany and its systematic relationships
Autorzy:
Schweigert, Günter
Scherzinger, Armin
Gräbenstein, Stefan
Powiązania:
https://bibliotekanauki.pl/articles/2060916.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ammonites
systematics
Pseudotropitinae
palaeobiogeography
Sinemurian
amonity
systematyka
paleobiogeografia
Opis:
New material of the enigmatic cosmopolitan ammonite genus Tmaegoceras Hyatt, 1889 is reported from the upper Lower Sinemurian (Bucklandi Zone, ‛cf. pinguisʼ Biohorizon) of SW Germany. It is better preserved than previously described material. All specimens are assigned to Tmaegoceras lacordarii (Michelin, 1835), an almost forgotten subjective senior synonym of Tmaegoceras crassiceps Pompeckj, 1901. The presence of an extreme rursiradiate ribbing style in some specimens allows a better understanding of this genus and provides a hint for its systematic affiliation. This diagnostic ribbing style is shared with some extremely rare Alpine taxa such as Ammonites salinarius Hauer, 1846 and “Arietites” subsalinarius Wähner, 1891. Tmaegoceras is included here in Pseudotropitinae Donovan, 1973. Pseudotropitinae are possibly an early offshoot of Arietitidae indigenous of the Panthalassa Realm that occasionally spread into the Tethys and its adjacent shelves. A phyletic relationship with Late Triassic Tropitidae Mojsisovics, 1875, however, cannot be excluded either.
Źródło:
Volumina Jurassica; 2021, 19, 1; 95--108
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distinguishing between two Antarctic species of Eocene Palaeeudyptes penguins: a statistical approach using tarsometatarsi
Autorzy:
Jadwiszczak, Piotr
Hospitaleche, Carolina Acosta
Powiązania:
https://bibliotekanauki.pl/articles/2051388.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
La Meseta Formation
Paleogene
Sphenisciformes
statistics
systematics
Źródło:
Polish Polar Research; 2013, 3; 237-252
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taxonomic relationships and population differentiation of the south-western Eurasian Zelkova species inferred in leaf morphology
Autorzy:
Jasinska, A.K.
Rucinska, B.
Kozlowski, G.
Fazan, L.
Garfi, G.
Pasta, S.
Bétrisey, S.
Gerber, E.
Boratynska, K.
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2078267.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
biogeography
plant variation
relict trees
systematics
taxonomy
Ulmaceae
Opis:
The relict tree species Zelkova abelicea and Z. sicula (Ulmaceae) occur in Crete and Sicily, respec- tively. Zelkova abelicea grows in approximately 40 localities in the mountains of Crete, while Z. sicula has been found in only two stands in Sicily. We compared 25 morphological characters of the leaves of both species and used statistical methods (Tuk- ey’s test, discrimination analysis, principal component analysis, agglomeration) to reveal the differences between these two species, their relation to Z. carpinifolia (the third Zelkova south-west Eurasian species), and between the leaves from different shoot types. Our study represents the first comparative biometric analysis of the three Zelkova species localized in the western edge of the current geographic range of the genus. We found that the species differed from each other both, in terms of leaf form characters and level of leaf variation. Zelkova carpinifolia was clearly differ- ent from Z. abelicea, while the two populations of Z. sicula, SIB and SIA, were more similar to Z. carpinifolia and Z. abelicea, respectively. The latter finding supports the results of recent molecular studies suggesting the hybrid origin of Z. sicula. Zelkova abelicea, Z. sicula and Z. carpinifolia differ each other in the leaf characteristics and level of phenotypic variation.
Źródło:
Dendrobiology; 2021, 85; 60-77
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strontium isotope systematics in the Oppstryn drainage basin, western Norway
Autorzy:
Sæther, O. M.
Beylich, A.
Åberg, G.
Powiązania:
https://bibliotekanauki.pl/articles/294659.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
strontium isotope
systematics
Oppstryn drainage basin
western Norway
Źródło:
Landform Analysis; 2007, 5; 71
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Redefinition of the genera Malaxis Sol. ex Sw. and Microstylis [Nutt.] Eaton [Orchidaceae, Epidendroideae]
Autorzy:
Szlachetko, D L
Margonska, H.B.
Powiązania:
https://bibliotekanauki.pl/articles/58410.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
redefinition
Malaxis
Malaxidinae
taxonomy
systematics
Microstylis
Orchidaceae
Epidendroideae
Opis:
A new definition of the genera Malaxis Sol. ex Sw. and Microstylis (Nutt.) Eaton is presented. The genera are briefly described and illustrated. A list of Microstylis species is added. Four new nomenclatural combinations are proposed.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 229-231
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jurassic ammonites of the Wulong area, Tingri County, Tibet
Autorzy:
Morton, N.
Meister, Ch.
Ruellau, L.
Shi, X.
Powiązania:
https://bibliotekanauki.pl/articles/2061072.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
ammonites
Jurassic
Tibet
systematics
biostratigraphy
amonity
jura
Tybet
systematyka
biostratygrafia
Opis:
The Jurassic succession west of Wulong village, Tingri County, southern Tibet, is described. Lithostratigraphical classification uses pre-existing terminology for formations, and an informal subdivision into members is proposed. An important structural dislocation, in the form of a small-scale flower structure, affects the Zhamure Formation straddling the Triassic/Jurassic boundary but does not affect the underlying Derirong Formation (Rhaetian) or the overlying Wulong Formation (Lower Jurassic). No other major structural discontinuities could be recognised. New finds of ammonites in situ include a new genus and species of possible schlotheimiid, Womalongiceras inflatum, with a probable age of Sinemurian or slightly younger. Two separate beds yielded rich assemblages of crushed ammonites identified as Nyalamoceras nyalamensis Chao and Wang (1956) here interpreted as a hammatoceratid. The age of these is reinterpreted as uppermost Aalenian on the basis of an accompanying specimen of ?Pseudolioceras (Tugurites) sp. nov. and poorly preserved ammonites from higher beds identified as graphoceratids (?Graphoceras).
Źródło:
Volumina Jurassica; 2015, 13, 2; 1--21
1896-7876
1731-3708
Pojawia się w:
Volumina Jurassica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new genus of "miacid" carnivoran from the earliest Eocene of Europe and North America
Autorzy:
Smith, T.
Smith, R.
Powiązania:
https://bibliotekanauki.pl/articles/21490.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
new genus
Carnivora
systematics
Gracilocyon
Eocene
Europe
North America
Opis:
“Miacid” carnivorans comprise one of the modern mammal groups appearing around the Palaeocene–Eocene Thermal Maximum (PETM) in the Northern Hemisphere. Here we describe a new very small “miacid” carnivoran from the earliest Eocene of Dormaal, Belgium, that shares a particular dental morphology with the species “Miacis” winkleri and “Miacis” rosei from the early Eocene of North America. The three species present very gracile and sharp teeth, and are hereby placed in the new genus Gracilocyon. Comparative dental analysis of Gracilocyon with other early “miacids” contributes to better resolve the polarity of dental characters and indicates that this genus is one of the most primitive members of the family. Diversity of early modern carnivorans is greater than previously considered and early “miacids” seem to have dispersed into North America from two different geographic origins.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Revision of the enigmatic insect family Anthracoptilidae enlightens the evolution of Palaeozoic stem-dictyopterans
Autorzy:
Guan, Z.
Prokop, J.
Roques, P.
Lapeyrie, J.
Nel, A.
Powiązania:
https://bibliotekanauki.pl/articles/22873.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Insecta
Neoptera
systematics
Paoliida
insect
Anthracoptilidae
evolution
Paleozoic
Carboniferous
dictyopteran
Opis:
The position of the Palaeozoic Anthracoptilidae has been a major problem of insect systematics for over a century. The previous hypotheses suggested affinities of Anthracoptilidae with the Palaeodictyopteroida, Protorthoptera, Hypoperlida, stem-Mantodea, Paraneoptera, Holometabola, or Eoblattida. Herein we put forward a new hypothesis based mainly on a comprehensive re-evaluation of the wing venation characters and re-examination of the type material of Anthracoptilus perrieri and Mesoptilus dolloi. The Anthracoptilidae are considered as belonging to the paoliid lineage, sister group of the Dictyoptera. In particular this result refutes the presence of Mantodea in the Paleozoic fossil record. The two families Strephocladidae and Strephoneuridae, are considered as junior synonyms of the Anthracoptilidae, while the previous synonymy of the Anthracoptilidae with the Ischnoneuridae is rejected. We consider the Permarrhaphidae, previously considered as synonym of the Anthracoptilidae, (and Permarrhaphus) as Insecta incertae sedis. The following new taxa are proposed: Mesoptilus carpenteri sp. nov. from the early Permian of Wellington Formation in Oklahoma (USA) which extends the range and distribution of the genus; Pseudomesoptilus gen. nov. is designated to include Mesoptilus sellardsi; Strephocladus permianus sp. nov. from the middle Permian of South of France; Westphaloptilus gallicus gen. et sp. nov. from the Bashkirian of the North of France.
Źródło:
Acta Palaeontologica Polonica; 2016, 61, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nagłówki w tekście aktu normatywnego
Autorzy:
Andrzej, Malinowski,
Powiązania:
https://bibliotekanauki.pl/articles/902360.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
normative act
systematics
heading
terminology
akt normatywny
systematyka
nagłówek
terminologia
Opis:
Set of regulations extracted in the systematics of normative act shall be accompanied by headings. Headings of systematics unit includes the name of the individual, the ordinal number and the signal inscription, which contains the characteristics of team rules. Name of entity together with its ordinal number identifies the unit and show relationships, in which remains the unit to other systematics units in this normative act. The signal inscription is an expression of metalinguistic and identifies a set of rules included in the systematics unit, based on semantic criteria. The essay proposes a typology of methods for creating signals inscriptions. The signal inscriptions occurring in the Polish legal language allowed the determination of terminology (nomenclature) signal inscriptions and to discuss the terms of ownership, including ownership of logic and language (grammar). Shows the diversity and originality of the vocabulary used in the signal inscriptions compared to the vocabulary of the entire legal language and general language.
Źródło:
Studia Iuridica; 2016, 66; 193-205
0137-4346
Pojawia się w:
Studia Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New information on ornithopod dinosaurs from the Late Jurassic of Portugal
Autorzy:
Rotatori, F.M.
Moreno-Azanza, M.
Mateus, O.
Powiązania:
https://bibliotekanauki.pl/articles/2082127.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Dinosauria
Ornithischia
Iguanodontia
taxonomy
systematics
biogeograhy
Jurassic
Lourinhã Formation
Portugal
Opis:
Ornithopods are one of the most speciose group of herbivorous dinosaurs, rising during the Jurassic and getting extinct at the Cretaceous–Paleogene boundary. However, most of the attention has been given to derived forms (hadrosaurids). Herein, cranial and post-cranial ornithopod material from the Upper Jurassic Lourinhã Formation and housed at Museu da Lourinhã is described and discussed. Comparison and phylogenetic analyses has allowed the attribution of the material either to Dryosauridae or to Ankylopollexia. The large-sized taxa conservatively ascribed to Ankylopollexia, resemble more closely Early Cretaceous styracosternans than Late Jurassic taxa. Due to the lack of autapomorphic characters, it was not possible to assign the material to any of the two valid Jurassic ornithopod Portuguese species, Draconyx loureiroi and Eousdryosaurus nanohallucis, although phylogenetic analyses hint a close relationship between the Lourinhã dryosaurid material and E. nanohallucis. Principal Component Analysis plotting limb bones proportions indicates a not fully mature ontogenetic stage for the Portuguese specimens. Comparing the Portuguese ornithopod fauna with the one in Morrison Formation and Kimmeridge Clay Formation, it is remarked the key-role of Portugal to understand biogeographic patterns in the distribution of iguanodontians.
Źródło:
Acta Palaeontologica Polonica; 2020, 65, 1; 35-57
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New systematic insights about Plio-Pleistocene moles from Poland
Autorzy:
Sansalone, G.
Kotsakis, T.
Piras, P.
Powiązania:
https://bibliotekanauki.pl/articles/22765.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Mammalia
Talpidae
Neurotrichus
systematics
taxonomy
Pliocene
Pleistocene
mole
Polska
Opis:
The generic attribution of the Plio-Pleistocene Polish moles ?Neurotrichus polonicus and ?Neurotrichus skoczeni has been questioned several times in the past. The fossil material belonging to ?Neurotrichus polonicus and ?Neurotrichus skoczeni is re-evaluated here and a new diagnosis is provided on the basis of qualitative considerations. In addition, a Geometric Morphometric analysis of the humerus has been performed including both extant and extinct Neurotrichini and Urotrichini taxa for comparison. Our results proved the unique morphology of the Polish material suggesting a distinct taxonomic state. The morphological variations evidenced by the humeral shape analysis agree with the observed qualitative differences and support a new generic allocation. The new genus Rzebikia gen. nov. is proposed for all the material previoulsly ascribed to ?Neurotrichus polonicus and ?Neurotrichus skoczeni.
Źródło:
Acta Palaeontologica Polonica; 2016, 61, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systematic and palaeoecological study of Miocene terrestrial gastropods from Zwierzyniec (southern Poland)
Autorzy:
Stworzewicz, E.
Prisyazhnyuk, V. A.
Górka, A.
Powiązania:
https://bibliotekanauki.pl/articles/191290.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
terrestrial gastropods
Middle Miocene
Carpathian Foredeep Basin
systematics
palaeoecology
Opis:
While the marine molluscs from Sarmatian deposits of the Carpathian Foredeep Basin are known in general, there is a paucity of data on the terrestrial gastropods. Recently, a rich assemblage of terrestrial snails, accompanied by freshwater species, was found in Zwierzyniec, in the north-western, marginal part of the Carpathian Foredeep. Among the 38 taxa recognised, there are 22 species found in Poland for the first time; a new clausiliid species Triloba magurkai Stworzewicz sp. nov. is described. Freshwater gastropods (nine Lymnaeidae species and two Planorbidae species) were presented elsewhere. The malacofauna comprises aquatic and typical hygrophilous elements from coastal wetland habitats, some xerophilous species from dry, open environments, and gastropods from an adjacent subtropical woodland.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 3; 179-200
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Devonian brachiopods from the southern Maїder (eastern Anti-Atlas, Morocco)
Autorzy:
Halamski, A. T.
Baliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/191427.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
systematics
Brachiopoda
Morocco
Devonian
Eifelian
Givetian
Variscan Sea
palaeobiogeography
Opis:
Sixty-two Middle Devonian brachiopod species are described on the basis of >1300 specimens from the Taboumakhlof Formation (and subordinately probably also from the top of the El Otfal Formation) at Madne el Mrakib (middle to late Eifelian or early Givetian?), Aferdou el Mrakib (late Eifelian to middle Givetian), and Guelb el Maharch (early Givetian) on the southern edge of the MaÎder Syncline (eastern Anti-Atlas, Mo- rocco). Representatives of Craniida (2 taxa), Strophomenida (5), Productida (2), Orthotetida (2), Orthida (5), Pentamerida (5), Rhynchonellida (9), Atrypida (14), Athyridida (7), Spiriferida (9), and Spiriferinida (2) are present. The fauna is dominated quantitatively by the Atrypida (24% of taxa, about the half of specimens, and the commonest species Atryparia dispersa making up about 13% of the material); the Rhynchonellida (16% of taxa, about one-sixth of specimens) are the second largest order. A new genus of the family Pugnacidae (order Rhynchonellida), Paulinaerhynchia, is proposed with the type species P. paulinae gen. et sp. nov. from Maharch; it is closest to Pugnax, from which it differs in distinct costation, lack of a dorsal septum and septalium, and rudimentary dental plates. Desquamatia (D.) deserti sp. nov., a large and finely costate representative of the genus, is described also from Maharch. Antirhynchonella and Glosshypothyridina are reported for the first time or con- firmed to be present in the Givetian. Forty (possibly up to 46) species (71 or possibly up to 82% of the taxa identified at the species level) are present also in either Eifel (Germany) or the Holy Cross Mountains (Poland). Such a high ratio of species in common attests to unconstrained faunal exchanges among benthic faunas between the northern and southern shores of the Variscan Sea during the Middle Devonian. This favours the palaeogeo- graphic hypothesis of a narrow Variscan Sea.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 4; 243-307
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Bajocian (Middle Jurassic) marine gastropod assemblage from the Badamu Formation, Central Iran
Autorzy:
Ferraris, M.
Binazadeh, T.
Kaim, A.
Powiązania:
https://bibliotekanauki.pl/articles/191652.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
gastropoda
Middle Jurassic
systematics
palaeobiogeography
Badamu Formation
Central Iran
Opis:
Nine species of gastropods are reported from the Bajocian (Middle Jurassic) part of the Badamu Formation of Central Iran. This is the first report of a gastropod assemblage of this age from the shelves of the Kimmerian Continent. Seven species belong to the Vetigastropoda and two to the Caenogastropoda. Two new species, the pleurotomariid Bathrotomaria iranica sp. nov. and the eucyclid Eucycloidea badamuensis sp. nov., are described. The remaining species are left in open nomenclature owing to poor preservation. The composition of the gastropod association is strongly reminiscent of other Tethyan gastropod faunas, in particular those from the southern shores of the Tethys (India and Arabia) and from southern Europe. This indicates a relatively uniform distribution of gastropod faunas along the Middle Jurassic shores of the western Tethys.
Źródło:
Annales Societatis Geologorum Poloniae; 2016, 86, 3; 329-340
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Eocene South American metatherian Zeusdelphys complicatus is not a protodidelphid but a hatcheriform: paleobiogeographic implications
Autorzy:
CARNEIRO, LEONARDO M.
OLIVEIRA, ÉDISON VICENTE
Powiązania:
https://bibliotekanauki.pl/articles/945640.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
mammalia
metatheria
hatcheriformes
zeusdelphys
paleobiogeography
systematics
eocene
itaboraí
basin
Opis:
Zeusdelphys complicatus is one of the most enigmatic metatherians from the Itaboraí Basin. The type and only known specimen was previously regarded as the upper dentition of Eobrasilia; an M4 of a new taxon; an M3 of a Kollpaniidae (now regarded as a group of “condylarths”); a probable M1 of an incertae sedis taxon; and as an M1 of a Protodidelphidae. Herein, we present a morphological review of the dental structures of Zeusdelphys complicatus, presenting new interpretations and comparing it with other North and South American taxa. We also perform a phylogenetic analysis in order to test the affinities of Zeusdelphys and the validity of most studied characters. The results recovered Zeusdelphys complicatus as more closely related to Hatcheritherium alpha than to any other metatherian. Glasbiidae were recovered as the sister lineage of Protodidelphidae within Didelphimorphia, as true marsupials. Ectocentrocristus was recovered as the sister taxon of Zeusdelphys + Hatcheritherium, as a Hatcheriformes. The analysis recovered this suborder as an independent lineage from Polydolopimorphia, being more closely related to “Alphadontidae”. The affinities with Protodidelphidae are a result of convergent evolution, as Zeusdelphys is more closely related to Hatcheritherium alpha from the Late Cretaceous of North America. The results support a North American origin for Hatcheriformes. The presence of strong sea-level lowstands and islands in the Caribbean Plate during the Late Cretaceous provide valid data to support a faunal interchange between Americas during the latest Late Cretaceous. Based on the results, Zeusdelphys represents a South American early Eocene surviving Hatcheriformes.
Źródło:
Acta Palaeontologica Polonica; 2017, 62, 3; 497-507
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New remains attributable to the holotype of the sauropod dinosaur Neuquensaurus australis, with implications for saltasaurine systematics
Autorzy:
D'emic, M.
Wilson, J.
Powiązania:
https://bibliotekanauki.pl/articles/20033.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
Dinosauria
Sauropoda
Titanosauria
Neuquensaurus australis
Saltasaurus loricatus
taxonomy
Cretaceous
South America
remains
new remains
holotype
sauropod dinosaur
dinosaur
systematics
saltasaurine systematics
Opis:
The Late Cretaceous South American sauropods Neuquensaurus australis and Saltasaurus loricatus are represented by well−preserved and abundant material that has been integral to our understanding of titanosaur anatomy for decades. Although the hypodigms for these species span most of the skeleton, holotypic materials are limited to a few bones that do not overlap between the two taxa. In this contribution, we augment the holotype of Neuquensaurus australis with a partial sacrum that was preserved in articulation with one of the caudal vertebrae from its original description, but not recognised as such at the time. We document this field association via the presence of a broken piece of matrix on the sixth sacral vertebral centrum that has a snap−fit to matrix on the rim of the anterior condyle of the holotypic biconvex vertebra. Based on comparisons with a more complete sacrum and ilium of a referred specimen of Neuquensaurus australis, we interpret this biconvex vertebra to be the seventh sacral vertebra. This raises the possibility that the biconvex “first caudal” vertebra of some other titanosaurs may be part of the sacrum as well. Augmentation of the Neuquensaurus australis holotype to include a sacrum makes it directly comparable to the holotype of Saltasaurus loricatus. Morphological differences in the number, shape, and proportion of sacral vertebrae allow discrimination between Neuquensaurus and Saltasaurus, confirming their generic separation. The El Brete quarry, which preserves the holotypic sacrum and abundant referred specimens of Saltasaurus loricatus, also preserves a sacrum consisting of seven vertebrae that bears autapomorphies of Neuquensaurus australis, indicating that these two saltasaurines coexisted.
Źródło:
Acta Palaeontologica Polonica; 2011, 56, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Cretaceous symmetrodont mammal Gobiotheriodon from Mongolia and the classification of Symmetrodonta
Autorzy:
Averianov, A O
Powiązania:
https://bibliotekanauki.pl/articles/20946.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Gobiotheriodon infinitus
systematics
classification
Early Cretaceous
mammal
Cretaceous
Mongolia
Gobiotheriodon
paleontology
Opis:
The “symmetrodont” mammal, Gobiotheriodon infinitus (Trofimov, 1980), from the Early Cretaceous (Aptian–Albian) of Mongolia, is redescribed.The species is restricted to the holotype only (dentary with three last molars), the referred maxillary fragment with M3? is considered here as cf. Gobiconodon sp.The dental formula of G. infinitusis reinterpreted as i1–3 c1 p1–3 m1–4. G. infinitus is characterized by a short dentary symphysis; long, well−developed Meckel's groove; small, triangular−shaped pterygoid fossa; weakly developed pterygoid crest; i3 enlarged; p1–3 two−rooted; lower molars acute− to obtuse−angled, labial cingulids lacking, lingual cingulids very short, well developed mesial and distal cingulid cuspules (“e” and “d”) and prominent wear surface on the paracristid. Gobiotheriodon is similar to Tinodon (Late Jurassic, USA; Early Cretaceous, Great Britain and Portugal) in postcanine dental formula and structure of the pterygoid fossa; it is provisionally assigned to Tinodontidae Marsh, 1887.Some taxa previously assigned to (or suggested as possible relatives of) “Symmetrodonta” are reviewed.Amphidontidae Simpson, 1925 is considered as nomen dubium.A new classification for “Symmetrodonta” is proposed.
Źródło:
Acta Palaeontologica Polonica; 2002, 47, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Phylocode: Beating a dead horse?
Autorzy:
Benton, M J
Powiązania:
https://bibliotekanauki.pl/articles/22908.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
systematics
Phylocode concept
stability
Phylocode name
Linnaean rank
paleontology
Linnaean system
Opis:
The concept of the Phylocode has been evolving for some twenty years, and is supported by Lee and Skinner (2007): I argue against it here. The first issue is stability, and biologists must decide whether they seek rigidity (Phylocode) or flexibility and conservativeness of clade contents (Linnaean codes). Phylocode names for taxa are by definition stable because they are established as labels for clades that are rigidly defined as geometric constructs. But this is not real stability because the species contained within those clades can change dramatically: an example is given where Phylocode practice forces a decision about the name Deinonychosauria, which can contain 20 or 10,000 species depending on which current tree is correct. Linnaean systems offer real stability (= conservativeness + flexibility) where the taxon name can be moved subtly up and down nodes in a tree to keep its association with a particular character or group of species. Proponents of the Phylocode argue that category/rank terms should be dispensed with, and yet they have no need to do this. Everyone accepts that Linnaean ranks are subjective, and yet there is no benefit in abandoning ranks because they have proved to be of such value to users of classifications, and genera and families, for example, act as valuable surrogates for species in large−scale evolutionary and ecological studies. Finally, the Phylocode extends regulation beyond names and their proper use into determining the validity of phylogenetic hypotheses, and this will act as a limit on normal scientific debate.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A revision of 'pediomyid' marsupials from the Late Cretaceous of North America
Autorzy:
Davis, B M
Powiązania:
https://bibliotekanauki.pl/articles/23172.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
fauna
systematics
mammal
Canada
Late Cretaceous
marsupial
Marsupialia
North America
paleontology
Opis:
“Pediomyids” are a diverse group of smallto medium−sized marsupials which comprise a significant portion of many Late Cretaceous North American mammalian faunas. Known almost exclusively from isolated teeth and jaw fragments, “pediomyids” exhibit far more diversity than any other contemporaneous group of North American mammals. This has led some to suggest that the family “Pediomyidae” is an artificial, polyphyletic assemblage composed of multiple lineages that independently acquired various traditionally−recognized “pediomyid” molar characters, such as a reduction of the anterior stylar shelf, reduction of the stylocone and a labial shift in the attachment of the cristid obliqua. The present study seeks to elucidate the interrelationships of “pediomyid” marsupials and test the monophyly of the group using cladistic methodology, including a broad sampling of Late Cretaceous North American taxa and a comprehensive set of qualitative molar characters. Results suggest that the family “Pediomyidae” and the genus “Pediomys” are both polyphyletic and are in need of systematic revision. Iqualadelphis lactea (Aquilan) appears to be unrelated to the “pediomyid” radiation, and rests as a stem taxon near the base of the cladogram. The large Aquilan Aquiladelphis nests in a trichotomy with a strictly−defined “Pediomyidae” and the enigmatic Lancian taxon Glasbius, suggesting the possibility of a distant relationship (above the familial level). Three clades are recognized within the “Pediomyidae”: a restricted Pediomys, Leptalestes gen. nov. (containing the three smallest species), and Protolambda (containing the remaining three larger species). Results suggest that “Pediomys” exiguus is a stem taxon lacking a close relationship to Pediomyidae sensu stricto, and is removed to permit recognition of the family as monophyletic. The results carry implications for the role “pediomyids” might have played in the initial North American marsupial radiation sometime prior to the Campanian, and the pattern of molar evolution throughout major Late Cretaceous lineages.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pliensbachian, Early Jurassic radiolarians from Mount Rettenstein in the Northern Calcareous Alps, Austria
Autorzy:
Cifer, T.
Gorican, S.
Gawlick, H.-J.
Auer, M.
Powiązania:
https://bibliotekanauki.pl/articles/2082123.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Radiolaria
Polycystina
systematics
stratigraphy
Jurassic
Western Tethys
Eastern Alps
Austria
Opis:
One of the best preserved Early Pliensbachian radiolarian assemblages from the Western Tethys is described from the grey marly limestone exposed at Mount Rettenstein in the Northern Calcareous Alps, south of the Dachstein Massif. Fourty-five genera and 71 species are documented and illustrated here. Four species are newly described: Tozerium filzmoosense Cifer sp. nov., Loupanus pliensbachicus Cifer sp. nov., Thurstonia? robusta Cifer sp. nov., and Ares rettensteinensis Cifer sp. nov. Radiolarian age is in accordance with ammonoid data from the overlying red marly limestone, which was assigned to the upper part of the Lower Pliensbachian. The best equivalent for the radiolarian-bearing lithology is the Dürrnberg Formation, characteristic of the open-marine Hallstatt facies zone. Previously published radiolarian data from the Dürrnberg Formation were re-evaluated and the originally proposed age assignments revised. At two localities, the published Hettangian–Sinemurian age was emended to the early Early Pliensbachian that is in accordance with the age of radiolarians from Mount Rettenstein. We compared the studied fauna from Mount Rettenstein also with two other rich radiolarian assemblages, one from another locality in the Dürrnberg Formation and one from the Gümüslü Allochthon in Turkey, which were assigned to the late Early Pliensbachian and are somewhat younger than the assemblages studied herein.
Źródło:
Acta Palaeontologica Polonica; 2020, 65, 1; 167-207
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morfologia kontra molekuły - o konflikcie pomiędzy hipotezami filogenetycznymi na przykładzie łuskonośnych
Morphology versus molecules - on the conflict between phylogenetic hypotheses in squamate reptiles
Autorzy:
Skawiński, Tomasz
Kaczmarek, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1034165.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Tematy:
paleontology
reptiles
squamate evolution
systematics
DNA
ewolucja
gady
paleontologia
systematyka
Opis:
Łuskonośne to jedna z największych grup współczesnych kręgowców. Przez wiele lat jej systematyka wydawała się dobrze ustalona, jednak zaawansowane badania molekularne prowadzone w XXI wieku sugerują zupełnie odmienny jej obraz. Tradycyjne dane morfologiczne wskazują, że łuskonośne obejmują dwie główne grupy - Iguania i Scleroglossa. Z kolei według badań molekularnych Iguania są zagnieżdżone głęboko wewnątrz Scleroglossa i blisko spokrewnione z zupełnie odmiennymi morfologicznie waranami, padalcami, czy wężami. Wskazywałoby to na ogromną konwergencję w morfologii lub sekwencjach genów pomiędzy różnymi grupami łuskonośnych i ich krewnych.
Squamates are one of the largest groups of extant vertebrates. For many years, their systematics seemed to be well established, yet comprehensive molecular genetics analyses conducted in the XXI century suggest completely different picture of the squamate phylogeny. Traditional morphological data suggest that squamates comprise two main groups - iguanians and scleroglossans. However, molecular data imply that iguanians are deeply nested within Scleroglossa and most closely related to squamates of strikingly different morphology such as monitor lizards, slow worms and snakes. This would suggest a huge amount of convergence either in morphology or gene sequences between many groups of squamates and their closest relatives.
Źródło:
Kosmos; 2017, 66, 2; 253-259
0023-4249
Pojawia się w:
Kosmos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ribotyping as a molecular biological technique for studying diversity in Shigella isolates - a review
Autorzy:
Pal, P.
Powiązania:
https://bibliotekanauki.pl/articles/11905.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
ribotyping
molecular biology
diversity
Shigella
isolate
bacteria
systematics
enteropathogen
taxonomy
Opis:
Diarrhoea in developing countries is caused by an increasingly long list of bacterial, viral, and parasitic pathogens with rotavirus, Enterotoxigenic Escherichia coli, Campylobacter, Shigella, and Salmonella heading the list. Using methods to detect most of the known enteropathogens, one or more enteropathogen(s) is isolated in two-thirds of diarrhoeal illnesses in the developing world. Deoxyribonucleic acid probes have proved very useful in detecting pathogens such as enterotoxigenic (ETEC), enteroinvasive (EIEC), enteropathogenic E. coli (EPEC), and Shigella but have not yet proved to be particularly rapid or less expensive. Molecular biology has proved useful in epidemiological studies as a means of strain identification and detection of genome diversity. Since the introduction of ribonucleic acid gene restriction patterns as taxonomic tools in 1986, ribotyping has become an established method for systematics, epidemiological, ecological population and genome diversity studies of microorganisms including Shigella. The technological development culminated in the automation of ribotyping which allowed for high-throughput applications. PCR ribotyping has proved being a highly discriminatory, flexible, robust and cost-efficient routine technique which makes inter-laboratory comparison and build of ribotype databases possible, too. The aim of the present review is to determine the present status of ribotyping technique in detecting the diversity in Shigella isolates.
Źródło:
International Letters of Natural Sciences; 2014, 14
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Jurassic pleurotomarioidean gastropod Laevitomaria and its palaeobiogeographical history
Autorzy:
Gatto, R.
Monari, S.
Szabo, J.
Conti, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/945571.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Gastropoda
Pleurotomariidae
pleurotomarioidean gastropod
gastropod
Laevitomaria
systematics
paleobiogeography
history
Jurassic
Opis:
The genus Laevitomaria is reviewed and its palaeobiogeographical history is reconstructed based on the re-examination of its type species L. problematica, the study of material stored at the National Natural History Museum of Luxembourg, and an extensive review of the literature. The systematic study allows ascribing to Laevitomaria a number of Jurassic species from the western European region formerly included in other pleurotomariid genera. The following new combinations are proposed: Laevitomaria allionta, L. amyntas, L. angulba, L. asurai, L. daityai, L. fasciata, L. gyroplata, L. isarensis, L. joannis, L. repeliniana, L. stoddarti, L. subplatyspira, and L. zonata. The genus, which was once considered as endemic of the central part of the western Tethys, shows an evolutionary and palaeogeographical history considerably more complex than previously assumed. It first appeared in the Late Sinemurian in the northern belt of the central western Tethys involved in the Neotethyan rifting, where it experienced a first radiation followed by an abrupt decline of diversity in the Toarcian. Species diversity increased again during Toarcian–Aalenian times in the southernmost part of western European shelf and a major radiation occurred during the Middle Aalenian to Early Bajocian in the northern Paris Basin and southern England. After a latest Bajocian collapse of diversity, Laevitomaria disappeared from both the central part of western Tethys and the European shelf. In the Bathonian, the genus appeared in the south-eastern margin of the Tethys where it lasted until the Oxfordian.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 1; 217-233
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollen morphology of Quercus (subgenus Quercus, section Quercus) in Iran and its systematic implication
Autorzy:
Panahi, P.
Pourmajidian, M.R.
Pourhashemi, M.
Powiązania:
https://bibliotekanauki.pl/articles/57449.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
pollen morphology
Quercus
Iran
systematics
taxonomy
pollen grain
pollen type
Opis:
For the first time, pollen morphology of 9 (4 spp. and 5 subspp.) taxa representing lobed leaved oaks of Iran in the family of Fagaceae has been examined and illustrated using light microscopy and scanning electron microscopy of acetolysed material. Detailed pollen morphological characteristics are given for Quercus section. The pollen grains are single, isopolar, radially symmetrical, tricolpate, tricolporoidate or tricolporate. Pollens were studied to show all possible characteristics like shape, size, apertures, wall thickness, etc., with special reference to the specific features of each pollen type such as structural, sculptural and suprasculptural patterns. There is considerable variation in pollen morphology between taxa so that, three types of pollen shape, five types of structural pattern, two types of sculptural pattern, five types of suprasculptural pattern and three types of perfora distribution are defined. Furthermore, the relationship between pollen morphology and taxonomy is discussed. Overall, pollen characters are shown to be a useful and informative tool for assessing taxonomic position within Quercus section in Iran.
Źródło:
Acta Societatis Botanicorum Poloniae; 2012, 81, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pre-Taghanic (Lower to lower Middle Givetian) brachiopods from Miłoszów in the Holy Cross Mountains (Poland)
Autorzy:
Baliński, Andrzej
Halamski, Adam T.
Powiązania:
https://bibliotekanauki.pl/articles/2200632.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
systematics
evolution
palaeoecology
benthic assemblage
biodiversity
brachiopodetum
Devonian
Taghanic Bioevent
Opis:
Sixty-eight brachiopod species are reported from the upper part of the Skały Formation at Miłoszów (Łysogóry Region of the Holy Cross Mts., central Poland) on the basis of over 2,200 specimens. The fauna is Early to early Middle Givetian in age (timorensis to rhenanus/varcus conodont zones) and thus predates the Middle Givetian Taghanic Bioevent. One new genus and three new species are described. Leiocyrtia Baliński gen. nov. (type species: Leiocyrtia rara Baliński gen. et sp. nov.; Spiriferida, Cyrtiidae) is characterised by a non-costate shell with prominent sulcus and fold and capillate microornament. Undispirifer sidoniae Halamski and Baliński sp. nov. is characterised by transverse shells and dense ribbing. Moravilla andreae Baliński and Halamski sp. nov. is characterised by relatively coarse radial capillate ornament and is the first representative of the genus outside the type species from the Givetian of Moravia. The most abundant species are: Spinulicosta cf. spinulicosta, Antirhynchonella linguiformis, Pentamerelloides davidsoni, Peratos beyrichi, Plectospira ferita, Spinatrypa wotanica (confirmed to belong to that genus and not to Spinatrypina), Ambothyris sp., and Echinocoelia dorsoplana. ‘Spirifer’ quadriplicatus Sandberger and Sandberger, 1856, a rare species known from Miłoszów and the Rhenish Massif, is an orthide and belongs to Teichertina. The relationship between Skenidioides polonicus and S. cretus, formerly understood as anagenesis, is re-interpreted as budding cladogenesis. Davidsonia septata is reported as an epizoan on rugosan corals, a relationship never previously observed in representatives of that genus. Brachiopods represent different palaeoecological groupings, from relatively shallow-water taxa (BA3, globetum) to deep-water mud-dwelling ones (BA5, deeper brachiopodetum). The richest beds are M1-IIa (28 brachiopod species), M3-7 (23 species), and M0-9 (22 species). Eighteen species described here were not known previously in the Holy Cross Mountains, so the corrected total number of brachiopod species from the Middle Devonian of the Łysogóry Region is 140.
Źródło:
Annales Societatis Geologorum Poloniae; 2023, 93, 1; 3--102
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aviation terrorism. The essence of the phenomenon, systematics, typology
Autorzy:
Glen, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/576305.pdf
Data publikacji:
2014-03-31
Wydawca:
Akademia Sztuki Wojennej
Tematy:
terrorism
airports
airlines
airspace management agencies
aviation
systematics
typology
form
manner
means
Opis:
The article sets out the characteristics of the reason and source of contemporary terrorism as well as an explanation of the general concept of terrorism, including aviation terrorism. Moreover, aviation terrorism is systematised on the ground of the subject of attack. Finally, the article presents a typology of aviation terrorism taking into account the following criteria: manner, form, and means, alongside the anticipated effects of aviation terrorism.
Źródło:
Security and Defence Quarterly; 2014, 2, 1; 59-75
2300-8741
2544-994X
Pojawia się w:
Security and Defence Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Glossiphoniidae Vaillant, 1850 [Hirudinea] of Poland - systematics and perspectives of studies
Autorzy:
Bielecki, A
Rybak, J.
Lukowiak-Bielecka, M.
Powiązania:
https://bibliotekanauki.pl/articles/839215.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
systematics
Hirudinea
Polska
life cycle
glossiphoniid classification
leech
life history
taxonomy
Glossiphoniidae
Opis:
Taxonomic and biological-ecological information as well as literature pertaining to the eleven Polish representatives of glossiphoniid leeches are summarized. Taxonomic status of many species is unclear, and data on their life histories are often fragmentary. The existence of several different conflicting systems of glossiphoniid classification indicates that the taxonomical value of characters is unclear. The family requires a thorough modern revision. A new generic-level classification of the family is needed. Data on behaviour and life cycless of most species should be supplemented; anatomical variation and differences between the purported forms of glossiphoniid species should be re-examined. A detailed study on the life cycles and variation of the Polish members of the Glossiphoniidae would provide new and valuable data and would allow at least for proposing a good, modern standard of species description without which a world-wide revision is hardly possible.
Źródło:
Annals of Parasitology; 1999, 45, 1
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systematyka narzędzi do zarządzania bezpieczeństwem infrastruktury drogowej
Systematics of the tools for road infrastructure safety management
Autorzy:
Jamroz, K.
Michalski, L.
Powiązania:
https://bibliotekanauki.pl/articles/144642.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Komunikacji Rzeczpospolitej Polskiej
Tematy:
zarządzanie
bezpieczeństwo
infrastruktura drogowa
narzędzia
systematyka
management
safety
road infrastructure
tools
systematics
Opis:
W ostatnich latach w zarządzaniu bezpieczeństwem ruchu drogowego pojawiło się kilka narzędzi takich jak audyt brd, ocena brd, kontrola brd. Dyskusja prowadzona podczas procedowania ustawy wdrażającej dyrektywę 2008/96/WE wskazała na nieznajomość wśród przedstawicieli stron biorących udział w dyskusji, narzędzi zarządzania bezpieczeństwem infrastruktury drogowej. W artykułe przedstawiono koncepcję usystematyzowania tych narzędzi bazując na dwóch kryteriach: przebiegu cyklu życia obiektu drogowego i procesie zarządzania ryzykiem. Na tej podstawie opracowano macierz działań niezbędnych do skutecznego i efektywnego zarządzania bezpieczeństwem infrastruktury drogowej.
In recent years, a number of tools such as road safety audit, evaluation of road safety, road safety control appeared in road safety management. The discussion that took place during the proceeding of the Act implementing the Directive 2008/96/EC pointed to a large unacquaintance incomprehensions, among the representatives of the parties involved in the discussions, with the tools for road infrastructure safety management. The paper presents a systematic approach of these tools based on two criteria: the course of the life cycle of a road infrastructure and risk management process. The result is an array of activities necessary for effective and efficient road infrastructure safety management.
Źródło:
Drogownictwo; 2012, 4; 144-152
0012-6357
Pojawia się w:
Drogownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variability of Euglena agilis [Euglenophyceae]
Autorzy:
Zakrys, B
Empel, J.
Milanowski, R.
Gromadka, R.
Borsuk, P.
Kedzior, M.
Kwiatowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/58369.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
phylogenesis
Euglenida
Euglena
genetic variability
molecular systematics
botany
taxonomy
Euglenophyceae
Euglena agilis
Opis:
The results of the internal transcribed spacer (ITS2) of extrachromosomal rDNA and the chloroplast SSU rDNA sequence analysis presented here confirmed elevated genetic polymorphism revealed earlier by RFLP and RAPD for seven clones of the cosmopolitan species - Euglena agilis Carter. High diversity among these clonal strains was not reflected by morphological criteria, with the exception of the only one character - the ability of the cell in its non-motile dividing states (palmella) to produce mucus and form a slimy envelope. Evolutionary adaptation as formation of slimy envelope may be attributed to different survival strategy of the species by which it adapts to life in a highly variable environment.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new giant discinoid brachiopod from the Lower Devonian of Algeria
Autorzy:
Mergl, M
Massa, D.
Powiązania:
https://bibliotekanauki.pl/articles/22683.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
systematics
new brachiopod
brachiopod
Devonian
Algeria
Lower Devonian
Germany
Discinoidea
Brachiopoda
paleontology
Opis:
A new discinoid brachiopod Gigadiscina gen. nov., with the type species G. lessardi sp. nov., is described from the Lower Devonian (Siegenian) of the Tamesna Basin (South Ahaggar Massif, South Algeria). It is characterised by large size and convexo−planar profile of the shell, with a subcentral pedicle foramen. Micro−ornament is typically discinoid, with small circular pits in radial rows on the post−larval shell surface. Related species of Malvinokaffric Realm origin from South Africa, Falkland Islands, Antarctica, South America, and Libya are reviewed, including the poorly known Discina anomala from the Lower Devonian of Germany. The giant size and convexo−planar shells of these discinoids, remarkably similar to recent limpets, are interpreted as adaptation to a habitat in proximity of sandy and gravel beaches in a high−energy environment. Most likely, the conical dorsal valve suppressed drag in turbulent waters, whereas fixation of shell by large, sucker−like pedicle eliminated peeling from the substrate.
Źródło:
Acta Palaeontologica Polonica; 2005, 50, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new caenogastropod from the upper Rhaetian of Lombardy: Palaeobiogeographical history and implications for the Early Jurassic gastropod recovery
Autorzy:
Pieroni, V.
Monari, S.
Todd, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/2082280.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Gastropoda
Zygopleuridae
systematics
palaeobiogeography
faunal recovery
Jurassic
Late Triassic
Italy
Southern Alps
Opis:
A new gastropod genus and its type species, namely Ederazyga fanchini gen. et sp. nov., are described from the upper Rhaetian deposits of Lombardy (northern Italy) and tentatively placed into the family Zygopleuridae. The first appearance of Ederazyga is recorded in the lower Carnian deposits of Southern Alps and the stratigraphical distribution of the genus ends almost at the Triassic/Jurassic boundary. Its occurrence in Norian beds of the Nayband Basin (central Iran) suggests an eastward extension of the distribution during that time. Ederazyga is probably one of the Alpine gastropod taxa appearing in this area after the formation of the basin. The genus is possibly related to a group of Early Jurassic, medium to large Zygopleura-like species that are well represented in the Sinemurian and Pliensbachian carbonate platform deposits of the Mediterranean region and in the Hettangian to Pliensbachian successions of the European epicontinental shelf. This group shows an apparent species radiation in these areas testifying to the gastropod recovery following the Late Triassic decline in biodiversity. Ederazyga fanchini is shown to be congeneric with Cerithium? lateplicatum Klipstein, 1843, which is the type species of Camponaxis Bandel, 1995. The definition and diagnosis of Camponaxis was based on specimens that are clearly different, at generic and higher taxonomic levels, from the holotype of C.? lateplicatum. They belong to a distinct species here named Camponaxis bandeli sp. nov. Several species have been subsequently ascribed to Camponaxis following its original diagnosis. Therefore, we invoke ICZN Art. 70.3.2 in order to preserve the unambiguous identity of the genus and to ensure its nomenclatural stability. Camponaxis bandeli is fixed as the new type species for Camponaxis and C.? lateplicatum is here assigned to Ederazyga.
Źródło:
Acta Palaeontologica Polonica; 2021, 66, 1; 193-206
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The pustulated temnospondyl revisited - a plagiosternine plagiosaurid from the Lower Triassic of Brasil
Autorzy:
Dias-Da-Silva, S
Milner, A.R.
Powiązania:
https://bibliotekanauki.pl/articles/23465.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
temnospondyl
plagiosternine plagiosaurid
Lower Triassic
Triassic
paleontology
Brazil
plagiosaurid
systematics
morphology
Opis:
A recent contribution published in this journal (Dias−daSilva and Ilha 2009) reported a dermal skull fragment indicating the presence of a putative plagiosauroid temnospondyl in the Lower Triassic Sanga do Cabral Formation of the Paraná Basin, Southern Brazil. The taxonomic assignation of this specimen was necessarily tentative as it was based on circumstantial evidence, specifically the presence of a dense pustular ornamentation over four partial dermal skull bones, consideration of the described taxa known to bear such ornamentation, and the stratigraphic and paleobiogeographic range of such taxa. Therefore, Diasda−Silva and Ilha (2009) could not be totally certain about the plagiosauroid affinities of the new specimen and ascribed it to ?Plagiosauridae. It was particularly difficult to make a precise osteological identification of the specimen and six alternative osteological interpretations were made in comparison to both Gerrothorax and Peltobatrachus (see Dias−da−Silva and Ilha 2009: fig. 2). In spite of the poor taxonomic resolution, the new specimen raised interesting questions regarding the presence of plagiosauroid stereospondyls in western Gondwana, as well as their evolutionary patterns, biostratigraphic and paleobiogeographic implications. After Dias−da−Silva and Ilha's (2009) contribution was published, new data from Damiani et al. (2009) raised the possibility of narrowing down the taxonomic identity of the plagiosauroid from Brazil. Accordingly, this brief report provides a more precise taxonomic assignation for this material.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 3; 561-563
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O wymogu niefragmentarycznej interpretacji tekstu prawnego. Perspektywa prawodawcy
Autorzy:
Lewandowski, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/1632299.pdf
Data publikacji:
2021-02-17
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
legal text
lawmaker
non-fragmentary interpretation
systematics of normative act
references
Opis:
The legislative standard is the coding of legal norms in legal regulations, because the lawmaker has no need, or even the possibility, to directly present the fully developed legal norms. This coding process enforces the fragmentation of a legal norm, which in turn results in the fact that the interpretation of a legal text, as a process opposite to the activities of the lawmaker, must be non-fragmentary. The lawmaker can and should provide the interpreter with guidelines on how to carry out this non-fragmentary interpretation, and especially indicate which fragments of the legal text are to be related to each other in this interpretation and how to bind them together. The lawmaker may find it extremely helpful in the implementation of this task to make appropriate use of the means of legislative technique, in particular the systematics of a normative act and the references contained in these acts.
Źródło:
Studia Iuridica; 2020, 83; 102-113
0137-4346
Pojawia się w:
Studia Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tomographic Reconstruction of the Exceptionally Preserved Trigonotarbid Arachnid Eophrynus prestvicii
Autorzy:
Dunlop, J.A.
Garwood, R.J.
Powiązania:
https://bibliotekanauki.pl/articles/945816.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
arachnida
trigonotarbida
eophrynidae
xmt
systematics
harvestmen
carboniferous
british middle
coal measures
united kingdom
Opis:
An exceptionally preserved specimen of the extinct trigonotarbid arachnid Eophrynus prestvicii (Arachnida: Trigonotarbida) from the Late Carboniferous (Duckmantian) British Middle Coal Measures of the UK is redescribed with the help of X-ray micro-tomography (XMT). Previous work is summarised and the correct spelling of the species name confirmed. Reconstruction of the void left by the original specimen within a siderite (ironstone) nodule reveals its three-dimensional structure as well as novel details which are difficult to resolve using traditional methods of study. The pedipalps and legs can now be reconstructed almost in their entirety and we can confirm that the chelicerae hung beneath the prosoma with a backwards-directed fang. Opisthosomal segmentation is clarified: a narrow tergite 1 is followed by eight further tergites (2–9), clearly demarked by their ornamentation. In general, a much more accurate picture of the spines and tuberculation ornamenting the dorsal surface of the body was resolved. Ventrally the opisthosoma bears socalled ventral sacs and terminates in a two-segmented pygidium. Based on the XMT model, a new reconstruction of E. prestvicii is presented. Although phylogenetically unrelated, the sometimes similar-looking, spiny and tuberculate lanitorid harvestmen (Opiliones: Lanitores) offer a possible ecological model for these highly ornamented trigonotarbids.
Źródło:
Acta Palaeontologica Polonica; 2014, 59, 2; 443-454
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gladius shape variation in coleoid cephalopod Trachyteuthis from the Upper Jurassic Nusplingen and Solnhofen Plattenkalks
Autorzy:
Fuchs, D
Engeser, T.
Keupp, H.
Powiązania:
https://bibliotekanauki.pl/articles/21066.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
gladius
Cephalopoda
systematics
variation
Vampyropoda
coleoid cephalopod
morphology
Trachyteuthis
paleontology
phylogenetic implication
Coleoidea
Opis:
Although the fossil record of coleoid cephalopods is generally poor, the Upper Jurassic Nusplingen and Solnhofen Plattenkalks have provided numerous well−preserved coleoids. Trachyteuthis hastiformis, a comparatively large vampyropod coleoid, was previously known to represent the sole species of its genus in Nusplingen and Solnhofen. However, morphological comparisons based on 50 specimens from different museum collections revealed two additional species: T. nusplingensis sp. nov. and T. teudopsiformis sp. nov. Both species lack the distinct spindle−shaped elevation on the gladius median field typical for T. hastiformis. T. nusplingensis sp. nov. is clearly characterised by a smooth median field and a more or less regular granulation on the dorsal gladius surface, whereas T. teudopsiformis sp. nov. can be easily distinguished by the presence of a Teudopsis−like median keel and an extremely narrow granulation. Morphometric analyses have shown that length−width indices are ambiguous characters to differentiate between the three species. Phylogenetically, the keeled and anteriorly pointed T. teudopsiformis sp. nov. can be linked with the Early Jurassic genus Teudopsis and the Late Cretaceous genus Glyphiteuthis.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
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