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Tytuł:
Revised classification and terminology of Palaeozoic stromatoporoids
Autorzy:
Stearn, C W
Webby, B D
Nestor, H
Stock, C W
Powiązania:
https://bibliotekanauki.pl/articles/23457.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Stromatoporida
Paleozoic
Labechiida
stromatoporoid
Stromatoporellida
morphology
taxonomy
carbonate skeleton
geographic distribution
stratigraphy
Clathrodictyida
classification
fossil
Syringostromatida
Amphiporida
catalogue number
terminology
Actinostromatida
paleontology
Opis:
Palaeozoic stromatoporoids comprise an extinct class of non-spiculate poriferans that are represented as fossils by their basal carbonate skeleton. A revised terminology for the description of these fossils is presented. Seven orders (Labechiida, Clathrodictyida, Actinostromatida, Stromatoporellida, Stromatoporida, Syringostromatida, Amphiporida) are recognized. The following is recorded for each genus: (1) type species, catalogue number and depository of the primary holotype; (2) synonyms and their type species; (3) diagnosis; (4) stratigraphic range; (5) estimate of the number of species assigned to the genus; (6) stratigraphic and geographic distribution of the genus. Problems in the definition and recognition of the genus are briefly discussed in annotations. One hundred and nine genera are considered valid, or doubtfully valid. Fifty three genera are placed in synonymy. An additional 14 genera are considered to be of uncertain placement in the classification.
Źródło:
Acta Palaeontologica Polonica; 1999, 44, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Graptolite-like fibril pattern in the fusellar tissue of Palaeozoic rhabdopleurid pterobranchs
Autorzy:
Mierzejewski, P
Kulicki, C.
Powiązania:
https://bibliotekanauki.pl/articles/22681.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
rhabdopleurid
rhabdopleurid pterobranch
Paleozoic
graptolite
Permian
Ordovician
taxonomy
ultrastructure
pterobranch
Opis:
The fusellar tissue of Palaeozoic rhabdopleurid pterobranchs has been studied using the SEM techniques. The fibrillar material of Ordovician Kystodendron ex gr. longicarpus and Rhabdopleurites primaevus exhibits a distinct dimorphism, comprising: (1) thinner, wavy and anastomosing/branching fusellar fibrils proper, producing a tight three-dimensional meshwork; and (2) long, more or less straight and unbranched cortical fibrils, sometimes beaded, and arranged in parallel. These fibrils are similar to the fusellar and cortical fibrils of graptolites, respectively. Until now, dimorphic fibrils and their arrangement within fusellar tissue were regarded as unique characters of the Graptolithina. In general, the fibrillar material of these fossils is partially preserved in the form of flaky material (new term) composed of flakes (new term). Flakes are interpreted as flattened structures originating from the fusion of several neighbouring tightly packed fibrils. A Permian rhabdopleurid, referred to as Diplohydra sp., reveals a fabric and pattern of fusellar tissue similar to that of both Ordovician rhabdopleurids but devoid (?) of cortical fibrils. The results presented here question views that: (1) substantial differences in fabric and pattern of fusellar tissue exist between fossil pterobranchs and graptolites; and (2) the ultrastructure of pterobranch periderm has remained unchanged at least since the Ordovician. The Palaeozoic rhabdopleurids investigated are closer ultrastructurally to graptolites than to contemporary pterobranchs. The pterobranchs and the graptolites should be treated as members of one class - the Graptolithoidea.
Przeprowadzono badania ultrastrukturalne perydemy trzech paleozoicznych pióroskrzelnych (Pterobranchia) z rzędu Rhabdopleurida: ordowickich Kystodendron ex gr. longicarpus (Eisenack) i Rhabdopleurites primaevus Kozłowski, oraz permskiego Diplohydra sp. Wykazano, że tkanka fuzellarna form ordowickich składa się z tego samego tworzywa co u graptolitów oraz wykazuje typowy dla nich dymorfizm fibrylarny i układ przestrzenny: tworzą ją stosunkowo cienkie, rozgałęziające się, powyginane włókna fuzellarne oraz grube, często równolegle ułożone włókna kortykalne. Włókien kortykalnych nie stwierdzono u Diplohydra sp., która zachowała jednak typowo graptolitowy charakter włókien fuzellarnych. Między włóknami wszystkich zbadanych form występują struktury określone jako płatki (flakes), powstałe wskutek cementacji kilkunastu lub więcej sąsiadujących ze sobą włókien. Materiał perydermalny zbudowany z płatków (flaky material - nowy terrnin) obserwowany był uprzednio u graptolitów. Stwierdzony w badanym materiale dymorfizm fibrylarny był dotąd uważany za właściwy jedynie graptolitom, podczas gdy tkanka fuzellarna pióroskrzelnych, zarówno kopalnych jak i współczesnych miała być zbudowana wyłącznie z cienkich, nierozgałęziających się włókien. Uzyskane wyniki potwierdzają trafność koncepcji Beklemiszewa (1951) o traktowaniu współczesnych i kopalnych pióroskrzelnych jako przedstawicieli gromady Graptolithoidea.
Źródło:
Acta Palaeontologica Polonica; 2001, 46, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Connecting ring structure and its significance for classification of the orthoceratid cephalopods
Autorzy:
Mutvei, H
Powiązania:
https://bibliotekanauki.pl/articles/21361.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
classification
Paleozoic
cephalopod
shell structure
siphuncular structure
orthoceratid cephalopod
Actinoceratina
connecting ring
taxonomy
Orthoceratina
paleozoology
Opis:
The connecting ring in orthoceratids is composed of two calcified layers: an outer spherulitic−prismatic and an inner calcified−perforate. The spherulitic−prismatic layer is a direct continuation of that layer in the septal neck, whereas the calcified−perforate layer is a structurally modified continuation of the nacreous layer of the septal neck. The latter layer is traversed by numerous pores which are oriented either transversally to the siphuncular surface, or have a somewhat irregularly anastomosing course. The connecting ring structure is positively correlated to the dorsal position of the scars of the cephalic retractor muscles. A similar type of connecting ring and a dorsal postion of retractor muscle scars also occur in lituitids, previously assigned to tarphyceratids, and in baltoceratids, previously assigned to ellesmeroceratids. These two taxa are therefore included in the suborder Orthoceratina, which, together with the suborder Actinoceratina, are assigned to the order Orthoceratida Kuhn, 1940.
Źródło:
Acta Palaeontologica Polonica; 2002, 47, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taxonomic notes on Phoebodus heslerorum and Symmorium reniforme [Chondrichthyes, Elasmobranchii]
Autorzy:
Ginter, M
Powiązania:
https://bibliotekanauki.pl/articles/23345.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Carboniferous
Symmorium reniforme
Paleozoic
tooth
Elasmobranchii
Phoebodus heslerorum
taxonomy
paleontology
Chondrichthyes
Opis:
The revision of shark teeth from the Pennsylvanian black shales of central USA, ascribed to “Phoebodus heslerorum” Williams, 1985 and Symmorium reniforme Cope, 1893, shows that “Ph. heslerorum” is a junior synonym of “Cladodus” divergens Trautschold, 1879. This species belongs neither to Phoebodus nor to Cladodus, so a new genus Heslerodus is proposed. Very common, robust cladodont teeth with a deep labio−basal depression and two buttons, often referred to as S. reniforme, do not belong to the latter species, but to “Cladodus” occidentalis Leidy, 1859. The generic affinity of “C.” occidentalis is yet undetermined, but it is possible that it represents ctenacanthoids.
Źródło:
Acta Palaeontologica Polonica; 2002, 47, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Additional evidence for the drilling behavior of Paleozoic gastropods
Autorzy:
Gahn, F J
Fabian, A.
Baumiller, T.K.
Powiązania:
https://bibliotekanauki.pl/articles/20969.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
drilling behaviour
gastropod
Paleozoic
paleontology
Opis:
Although the record of Paleozoic drillholes is long and extensive, evidence pertaining to the identity of the drillers is sparse. The most conclusive evidence, a driller “caught in the act”, has been documented only once (Baumiller 1990). In that example, a drillhole in the calyx of a crinoid was found directly beneath an attached platyceratid gastropod. Additional evidence for drilling by platyceratids has been circumstantial, i.e., based on the association of platyceratids with certain blastoids and crinoids, and the presence of drillholes in other crinoid and blastoid taxa. To a skeptic, the lack of congruence between drilled and platyceratidinfested crinoids and blastoids is not sufficient evidence that platyceratids were the drillers. More conclusive evidence requires examples of drillholes in taxa that are known to have been platyceratid−infested, preferably from localities where both infested specimens and drilled specimens co−occur.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoecology of free-lying domal bryozoan colonies from the Upper Eocene of Southeastern USA
Autorzy:
McKinney, F K
Taylor, P.D.
Powiązania:
https://bibliotekanauki.pl/articles/22653.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
bryozoan colony
marine rock
Paleozoic
Eocene
USA
sedimentary rock
Upper Eocene
morphology
paleoecology
Bryozoa
Castle Hayne Formation
paleontology
Opis:
Dome−shaped cheilostome bryozoan colonies, most commonly about 2 cm in diameter, are common in Upper Eocene offshore deposits of southeastern North Carolina, USA.This colony−form is anachronistic in the Eocene, being more typical of Palaeozoic bryozoans.There are three types of domes: individual colonies of Parasmittina collum (Canu and Bassler), individual colonies of Osthimosia glomerata (Gabb and Horn) and multispecies intergrowths.The bryozoans grew laterally beyond initial shell substrata to become free−lying. P. collum colonies grew by local eruptive budding, forming subcolonies that extended radially over the underlying layer of zooids.Undersides of subcolonies that extended beyond the original substratum have basal exterior walls that are more commonly fouled by encrusters than is the upper side of the colony.By contrast, lateral growth of O. glomerata colonies was limited by size of the original substratum, subcolonies were not developed, and colony growth occurred by prolific frontal budding over the entire upper surface of the colony. Undersides of colonies beyond the substratum consist of the lateral interior walls of marginal zooids and are much less commonly fouled than are undersurfaces of P. collum.The upper surfaces of multispecies domes by definition are always fouled, and their undersurfaces are also commonly fouled.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drilling predation on Permian brachiopods and bivalves from the Glass Mountains, West Texas
Autorzy:
Hoffmeister, A P
Kowalewski, M.
Baumiller, T.K.
Bambach, R.K.
Powiązania:
https://bibliotekanauki.pl/articles/23218.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
drilling predation
Paleozoic
brachiopod
drilling parasitism
Glass Mountains
mollusc
bivalve mollusc
Texas
paleontology
Opis:
Although bored invertebrates have been described from every period of the Paleozoic, little information on the frequency and nature of Late Paleozoic drill holes exists. Our examination of the Permian silicified fossils, which were bulk collected by G.A. Cooper from the Glass Mountains of west Texas, revealed numerous drilled brachiopods and bivalve mollusks. Drill holes are perpendicular to the shell, smooth sided, sometimes beveled, and have other characteristics consistent with a predatory/parasitic origin. The frequency of drilling is significantly lower (p ≤ 0.05) for brachiopods (1.07%, n = 7597) than for bivalves (7.43%, n = 619). This study confirms that drilling predators and/or parasites were present in the Late Paleozoic. However, the drilling frequencies reported here—rarely exceeding 5%—are much lower than those reported for the Late Mesozoic and Cenozoic, which typically exceed 20%. The low Late Paleozoic frequencies are consistent with a majority of estimates reported previously for the older periods of the Paleozoic and suggest that the intensity of drilling predation/parasitism in marine benthic ecosystems remained low throughout the Paleozoic and did not increase until some time in the Mesozoic. Our data suggest that prey/host types with a higher nutritional return (bivalve mollusks) may have been preferentially selected for attack by predator(s)/parasites(s) already in the Permian.
Źródło:
Acta Palaeontologica Polonica; 2004, 49, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stylophoran supertrees revisited
Autorzy:
Lefebvre, B
Powiązania:
https://bibliotekanauki.pl/articles/23222.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
supertree
Echinodermata
Mitrata
Paleozoic
Calcichordata
Stylophora
Ankyroida
Cornuta
paleontology
Opis:
Supertree analysis is a recent exploratory method that involves the simultaneous combination of two or more character−based source trees into a single consensus supertree. This method was recently applied by Ruta to a fossil group of enigmatic Palaeozoic forms, the stylophoran echinoderms. Ruta’s supertree suggested that mitrates are polyphyletic and originated from paraphyletic cornutes. Re−examination of Ruta’s data matrix strongly suggests that most source trees were based on dubious homologies resulting from theory−laden assumptions (calcichordate model) or superficial similarities (ankyroid scenario). A new supertree analysis was performed using a slightly corrected version of Ruta’s original combined matrix; the 70% majority−rule consensus of 24,168 most parsimonious supertrees suggests that mitrates are monophyletic and derived from paraphyletic cornutes. A second new supertree analysis was generated to test the influence of the pruning of three taxa in some calcichordate source trees; the 70% majority−rule consensus of 3,720 shortest supertrees indicates that both cornutes and mitrates are monophyletic and derived from a Ceratocystis−like ancestor. The two new supertree analyses demonstrate the dramatic influence of the relative contributions of each initial assumption of plate homologies (and underlying anatomical interpretations), in original source trees, on the final topology of supertrees.
Źródło:
Acta Palaeontologica Polonica; 2005, 50, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The revision of 'Cladodus' occidentalis, a Late Paleozoic ctenacanthiform shark
Autorzy:
Ginter, M
Ivanov, A.
Lebedev, O.
Powiązania:
https://bibliotekanauki.pl/articles/20599.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Carboniferous
Cladodus mirabilis
Paleozoic
Late Paleozoic
Permian
tooth
Ctenacanthiformes
Glikmanius occidentalis
paleontology
Chondrichthyes
Opis:
The teeth of a well known late Palaeozoic cladodont chondrichthyan, “Cladodus” occidentalis from Russia, USA, and England are restudied and a new generic name, Glikmanius gen. nov., is proposed for this species. Yet another tooth−based species, formerly described as ?Symmorium myachkovensis, occurring on the Russian Platform and in Nebraska, is considered to belong to the newly erected genus. Although there is no direct evidence that Glikmanius possessed fin spines, the broad similarity between its teeth and those of Ctenacanthus compressus suggests it had a ctenacanthiform affinity. The possible relationships between Glikmanius, Cladodus sensu stricto, “Ctenacanthus” costellatus, and Heslerodus, are suggested. However, the proposition put forward by an earlier author that the teeth of Heslerodus might represent the lower jaw dentition of G. myachkovensis, is rejected. The overall resemblance of Glikmanius teeth and those of Cladoselache and Squatinactis is recognised as convergent.
Źródło:
Acta Palaeontologica Polonica; 2005, 50, 3
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An enigmatic chondrichthyan with Paleozoic affinities from the Lower Triassic of Western Canada
Autorzy:
Mutter, R J
Neuman, A.G.
Powiązania:
https://bibliotekanauki.pl/articles/19949.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
histology
fish
Triassic
Lower Triassic
Paleozoic
Canada
chondrichthyan
paleontology
Listracanthus pectenatus
Western Canada
Opis:
Listracanthus pectenatus sp. nov. represents the youngest record of the enigmatic chondrichthyan Listracanthus. This new species is the only Mesozoic record of this genus and highlights survival of a rare and enigmatic group of cartilaginous fishes across the Paleozoic–Mesozoic boundary. In the Vega−Phroso Siltstone Member of the Sulphur Mountain Formation (western Canada), two kinds of numerous dermal denticles identified as Listracanthus occur predominantly in strata probably of early Smithian age. The new species differs from all other known species of the genus in the structure of the anterior and posterior borders of the large denticles. The small denticles appear to be less diagnostic than the large ones and are readily distinguished from small denticles generally assigned to the genus Petrodus. Histology reveals that the largest denticles were originally hollow, probably secondarily ossified as acellular bone. The conclusion drawn by previous authors that Listracanthus may be a petalodontid shark, based on ambiguous non−skeletal associations with Deltoptychius, Petrodus, or Calopodusis not supported by this study. The large number of denticles, the size of both types of denticles and their arrangement suggest that Listracanthus pectenatus sp. nov. was a large chondrichthyan of aberrant body shape and yet uncertain systematic position.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Promieniotwórczość naturalna skał paleozoicznych z rejonu Krzeszowic
Natural radioactivity of the Paleozoic rocks from the area of Krzeszowice (southern Poland)
Autorzy:
Malczewski, D.
Badera, J.
Lizurek, G.
Mirkowski, Z.
Dorda, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074494.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
skała paleozoiczna
tuf wulkaniczny
promieniotwórczość naturalna
badanie in situ
Paleozoic rocks
tuff
melaphyre
porphyry
diabase
limestone
natural radioactivity
in situ gamma-ray spectrometry
Krzeszowice
Polska
Opis:
In this paper results of natural radioactivity of 40K, 208Tl, 212Pb, 212Bi, 214Pb, 214Bi and 228Ac in common rocks raw materials mined in the Krakow vicinity measured in situ using a portable gamma-ray spectrometry are presented. The study area occupies the SE edge of regional geologic unit called Krakow–Lubliniec Zone. Most Upper Paleozoic rocks exposed in this area like tuff, porphyry, limestone, dolomite, diabase and melaphyre have great economic importance and are used in building and road construction industry. The activity concentrations of 40K for the measured Paleozoic rocks ranged from 53 Bq/kg (Carboniferous limestone) to 3150 Bq/kg (Permian tuff). The activity concentrations associated with 228Ac (232Th) varied from about 7 Bq/kg (Carboniferous limestone) to 56 Bq/kg (Permian tuff), whereas activity concentrations of 226Ra (238U) ranged from 19 Bq/kg (Devonian dolomite) to 43 Bq/kg (Devonian limestone). Besides, the natural radioactivity of the Jurassic limestones (widespread in this region) was measured for comparision with Devonian and Carboniferous limestones.
Źródło:
Przegląd Geologiczny; 2006, 54, 9; 815-822
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stosunek podłoża do fliszu Karpat zewnętrznych pomiędzy Wadowicami a Babią Górą w świetle refleksyjnych badań sejsmicznych
Relationship of the basement to the flysch of the Outer Carpathians between Wadowice and Babia Góra in the light of reflection seismic survey
Autorzy:
Pietsch, K.
Golonka, J.
Marzec, P.
Powiązania:
https://bibliotekanauki.pl/articles/183871.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Karpaty zewnętrzne
platforma północnoeuropejska
paleozoik
flisz
tektonika
strukturalna interpretacja refleksyjnych profili sejsmicznych
Paleozoic
Outer Carpathians
North European Platform
flysch
tectonics
structural interpretation of seismic profiles
Opis:
Zinterpretowane sejsmiczne przekroje czasowe w powiązaniu z dostępnymi danymi otworowymi oraz szeroką literaturą dotyczącą budowy geologicznej tej części Karpat, były podstawą do opracowania geodynamicznego modelu rozwoju orogenu karpackiego w rejonie Wadowice - Babia Góra. Geologiczną identyfikację granic sejsmicznych oraz ich korelację na przekrojach sejsmicznych wykonano w systemie GeoGraphix (Landmark Graphics Co.). Dowiązano i skorelowano granice w obrębie fliszu i w platformowym podłożu. Zidentyfikowano uskoki powstałe w czasie orogenezy hercyńskiej w karbonie i wczesnym permie, uskoki przesuwcze o kierunku N-S, powstałe w trakcie orogenezy alpejskiej oraz normalne uskoki o kierunku E-W, które powstały podczas ostatniego nasunięcia Karpat do położenia zajmowanego obecnie.
Interpreted seismic time sections in relation to available borehole data and extensive literature on geological structure of this part of the Carpathians, have served as the basis for developing geodynamic model of the Carpathian orogeny development in the area Wadowice - Babia Góra. Geological identification of seismic boundaries and their correlation on seismic sections were performed in the GeoGraphix system (Landmark Graphics Co.) Boundaries within the flysch and in the platform basement have been tied and correlated. Faults formed during the Hercynian Orogeny in the Carboniferous and the early Permian, strike-slip faults of N-S orientation, formed during the Alpine orogeny and normal faults of E-W orientation, which had formed during the last thrust of the Carpathians to their position have been identified.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2007, 33, 4/1; 197-210
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unsuccessful predation on Middle Paleozoic plankton: Shell injury and anomalies in Devonian dacryoconarid tentaculites
Autorzy:
Berkyova, S
Fryda, J.
Lukes, P.
Powiązania:
https://bibliotekanauki.pl/articles/22057.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Tentaculitoidea
tentaculite
predation
Middle Paleozoic
Paleozoic
plankton
Devonian
shell repair
dacryoconarid tentaculite
paleontology
Opis:
Anomalous development of shell ornamentation and repaired shell injury in the Early Devonian dacryoconarid tentaculites are documented and interpreted as either a repaired injury of the shell (evidence of unsuccessful predation obscured by recrystallization), or as a result of an anomalous function of the mantle, caused by injury of the soft body. The manner of shell repair, which resembles the way that some modern marine animals, such as mollusks, repair their shells, is discussed. The issue of phylogenetic affinities of tentaculites has been also outlined. These findings represent the first documentation of unsuccessful predation on the Middle Paleozoic plankton.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Paleozoic evolution of the Peri-Gondwana plates
Wczesnopaleozoiczna ewolucja perygondwańskich płyt litosfery
Autorzy:
Golonka, J.
Krobicki, M.
Poprawa, P.
Paul, Z.
Khudoley, A.
Powiązania:
https://bibliotekanauki.pl/articles/183632.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Perygondwana
Rodinia
Awalonia
wczesny paleozoik
Peri-Gondwana
Avalonia
Early Paleozoic
Opis:
Przedstawiono główne etapy wczesnopaleozoicznej ewolucji perygondwańskich płyt litosferycznych w nawiązaniu do historii superkontynentu Rodinia, a zwłaszcza efektu neoproterozoicznego ryftowania, które doprowadziło do izolacji Gondwany, Laurencji, Syberii i Bałtyki. Wskazano z kolei na wczesnopaleozoiczne (późny kambr-wczesny ordowik) ryftowanie terranów awalońskich, które objęło m.in. północno-zachodnią i południową Polskę. Na tym tle zobrazowano również wczesnopaleozoiczne wydarzenia geotektoniczne w dalekowschodniej Azji.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 2/1; 339-343
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Foraminifers from the Treskelodden Formation (Carboniferous-Permian) of south Spitsbergen
Autorzy:
Błażejowski, Błażej
Powiązania:
https://bibliotekanauki.pl/articles/2051649.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Svalbard
paleontology (foraminifers)
biostratigraphy
Late Paleozoic
Źródło:
Polish Polar Research; 2009, 30, 3; 193-230
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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