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Tytuł:
Triassic coleoid beaks and other structures from the Calcareous Alps revisited
Autorzy:
Doguzhaeva, L.A.
Summesberger, H.
Brandstaetter, F.
Gruber, D.
Tintori, A.
Powiązania:
https://bibliotekanauki.pl/articles/31341404.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
Triassic
coleoid
beak
Cephalopoda
Coleoidea
Phragmoteuthis
vertebrate
invertebrate
structure
cephalopod
Phragmoteuthis bisinuata
Lunzoteuthis schindelbergensis
Glochinomorpha stifeli
Calcareous Alps Mountains
Alps Mountains
Źródło:
Acta Palaeontologica Polonica; 2022, 67, 3; 655-666
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zwierzęta w czasach kryzysu klimatycznego
Animals in the Era of Climate Crisis
Животные в эпоху климатического кризиса
Autorzy:
Skubała, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/21150543.pdf
Data publikacji:
2022-06-22
Wydawca:
Wydawnictwo Uniwersytetu Śląskiego
Tematy:
изменение климата
вымирание
дикие животные
миграции
биомасса позвоночных
zmiany klimatu
wymieranie
dzikie zwierzęta
migracje
biomasa kręgowców
climate change
extinction
wildlife
migrations
vertebrate biomass
Opis:
Obserwujemy obecnie szóste, plejstoceńsko-holoceńskie wielkie wymieranie. Jednym z istotnych czynników przyczyniających się do dramatycznego spadku różnorodności dzikiej fauny i flory są zmiany klimatu. Ludzkość podjęła walkę ze zmianami klimatu w 1992 roku, kiedy to w trakcie Szczytu Ziemi w Rio de Janeiro przyjęto Ramową Konwencję Narodów Zjednoczonych w sprawie Zmian Klimatu. Niestety efektów tych wysiłków nie widać. Wzrost emisji gazów cieplarnianych doprowadzi do wymarcia połowy gatunków na Ziemi do końca wieku. Ograniczenie wzrostu temperatury do 2°C (w stosunku do ery przedindustrialnej) do 2100 roku oznaczać będzie zmniejszenie różnorodności gatunkowej o 25%. Naukowcy przestrzegają, że jeśli nie podejmiemy natychmiastowych działań, czeka nas katastrofalna utrata różnorodności biologicznej. Dzikie zwierzęta kręgowe już dzisiaj stanowią zaledwie 4% biomasy wszystkich kręgowców, dramatycznie niewiele w porównaniu z biomasą zwierząt hodowlanych.
В настоящее время мы наблюдаем шестое плейстоцен-голоценовое великое вымирание. Изменение климата является одним из важных факторов, способствующих резкому сокращению разнообразия дикой природы. Человечество взялось за борьбу с изменением климата в 1992 году, приняв Рамочную конвенцию ООН об изменении климата на Саммите Земли в Рио-де-Жанейро. К сожалению, результаты этих усилий не видны. Увеличение выбросов парниковых газов приведет к исчезновению половины видов на Земле к концу века. Ограничение повышения температуры до 2°C (по сравнению с доиндустриальной эпохой) до 2100 года будет означать сокращение видового разнообразия на 25%. Ученые предупреждают, что если мы не примем немедленных мер, то столкнемся с катастрофической утратой биоразнообразия. Дикие позвоночные животные уже составляют лишь 4% биомассы всех позвоночных, т. е. крайне мало по сравнению с биомассой сельскохозяйственных животных.
We are currently observing the sixth Pleistocene-Holocene great extinction. Climate change is one of the significant factors contributing to the dramatic decline in wildlife diversity. Humanity took up the fight against climate change in 1992 by adopting the Framework Convention on Climate Change at the Rio de Janeiro Earth Summit. Unfortunately, these efforts have not produced the expected results. Rising greenhouse gas emissions will lead to the extinction of half of the species on Earth by the end of this century. Limiting the temperature increase to 2°C by 2100 will mean a 25% reduction in species diversity. For most animal species, the race against progressive climate change is difficult and even impossible to win. Scientists warn that if we do not take immediate action, we will face a catastrophic loss of biodiversity. Wild vertebrate animals already account for no more than 4% of the biomass of all vertebrates, which is dramatically lower than the biomass of farmed animals.
Źródło:
Zoophilologica. Polish Journal of Animal Studies; 2022, 1 (9); 1-20
2719-2687
2451-3849
Pojawia się w:
Zoophilologica. Polish Journal of Animal Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biochronology of Late Triassic Metoposauridae (Amphibia, Temnospondyli) and the Carnian pluvial episode
Autorzy:
Lucas, Spencer G.
Powiązania:
https://bibliotekanauki.pl/articles/1836255.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
land-vertebrate faunachron
Krasiejów level
Otischalkian
Adamanian
Revueltian
Apachean
Carnian wet episode
Opis:
During the Late Triassic, metoposaurids were one of the last significant families of temnospondyl amphibians, and they have long been used in the correlation of Late Triassic tetrapod assemblages. Their fossil record extends across much of Late Triassic Pangea, including important metoposaurid fossils from the USA, Canada, Portugal, Germany, Poland, Morocco, India and Madagascar. Six genera of metoposarids are recognized: 1) Adamanian-Apachean Apachesaurus, endemic to the western USA, 2) Otischalkian Arganasaurus and Dutuitosaurus, endemic to Morocco, 3) Otischalkian-Revueltian Koskinonodon, endemic to the western USA, 4) Panthasaurus from the Otischalkian of India, and 5) Otischalkian-Adamanian Metoposaurus, known from the western USA, eastern Canada, Portugal, Italy, Germany, and Poland. Of the metoposaurid genera, only Metoposaurus has a broad enough palaeogeographic distribution and relatively restricted temporal range to be of biochronological value; its biochron identifies the Otischalkian–Adamanian (middle–late Carnian). The oldest metoposaurids are of middle Carnian age, the age of the Carnian pluvial episode of global climate. The middle Carnian broad palaeogeographic distribution, diversity and cosmopolitanism of the metoposaurids, followed by reduced diversity and relative endemism, likely indicates that climate changes were an important factor in their evolution.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 4; 409-418
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diversity of vertebrate remains from the Lower Gogolin Beds (Anisian) of southern Poland
Autorzy:
Antczak, Mateusz
Ruciński, Maciej
Stachacz, Michał
Matysik, Michał
Król, Jan J.
Powiązania:
https://bibliotekanauki.pl/articles/1836253.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Chondrichthyes
Actinopterygii
Reptilia
fossil vertebrate
tempestite
coprolite
Middle Triassic
Opis:
Middle Triassic (Muschelkalk) limestones and dolostones of southern Poland contain vertebrate remains, which can be used for palaeoecological and palaeogeographical analyses. The results presented concern vertebrate remains uncovered at four localities in Upper Silesia and one on Opole Silesia, a region representing the south-eastern margin of the Germanic Basin in Middle Triassic times. The most abundant remains in this assemblage are fish remains, comprising mostly actinopterygian teeth and scales. Chondrichthyan and sauropsid remains are less common. Reptilian finds include vertebrae, teeth and fragments of long bones, belonging to aquatic or semi-aquatic reptiles, such as nothosaurids, pachypleusorosaurids, and ichthyosaurids. Also, coprolites of possibly durophagous and predacious reptiles occur. In the stratigraphic column of Mikołów, actinopterygian remains are the most numerous and no distinct changes of the taxonomic composition occur. Although this assemblage differs from those described at other localities (Ząbkowice with numerous chondrichthyans, Żyglin, and Płaza with common sauropsid fossils), sampling bias has to be considered.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 4; 419-433
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Large tridactyl dinosaur tracks from the Early Jurassic of southern Gondwana : uppermost Elliot Formation, Upper Moyeni, Lesotho
Autorzy:
Abrahams, Miengah
Sciscio, Lara
Reid, Mhairi
Haupt, T’nielle
Bordy, Emese M.
Powiązania:
https://bibliotekanauki.pl/articles/1836362.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
vertebrate ichnology
tridactyl
large theropods
southern Gondwana
Karoo
upper Elliot Formation
Opis:
A new ichnosite in southwest Lesotho (Upper Moyeni; Quthing District) is located within the uppermost part of the highly fossiliferous Elliot Formation, ~35 m below the conformably overlying Clarens Formation and ~65 m above the world-renowned Lower Moyeni ichnosite. While the Lower Moyeni site preserves diverse Early Jurassic ichnofossils, the ichnites at the Upper Moyeni comprise one vertebrate burrow and ~50 tridactyl tracks with footprint lengths between 15 and 51 cm. Many of the tracks preserve digital pad impressions, claw marks and displacement rims, all related to substrate conditions. The morphometric parameters of the Upper Moyeni tracks are consistent with Grallator, Eubrontes and Kayentapus. Several larger tracks with footprint lengths > 40 cm are Kayentapus-like and Eubrontes-like, and are comparable to previously described very large theropods tracks with lengths > 50 cm from the uppermost Elliot and Clarens formations. On the basis of sedimentological and ichnological evidence, the Upper Moyeni ichnofossils were formed in a palaeolandscape with small rivers and shallow lakes by burrowing tetrapods and a variety of bipedal dinosaurs (theropods), some of which were up to 7–8 m in body length. The Upper Moyeni tracks, together with the other very large tracks from coeval locations in southern Africa, collectively highlight the tendency towards increasing diversity in size of tridactyl tracks and by extension theropod trackmaker body size body size, which runs in tandem with the increasing diversity of non-sauropod, sauropodomorph body fossils in the Sinemurian-Pliensbachian of southern Gondwana.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 1; 1-26
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dinosaur behaviour in an Early Jurassic palaeoecosystem – uppermost Elliot Formation, Ha Nohana, Lesotho
Autorzy:
Rampersadh, A.
Bordy, E. M.
Sciscio, L.
Abrahams, M.
Powiązania:
https://bibliotekanauki.pl/articles/191599.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
vertebrate ichnology
tridactyl
tetradactyl
climate change
southern Gondwana
Karoo
upper
Elliot Formation
Opis:
The Ha Nohana palaeosurface in southern Lesotho preserves tridactyl and tetradactyl tracks and trackways attributable to Early Jurassic bipedal, theropod-like dinosaurs. Complementary sedimentological and ichnological observations along the palaeosurface and in the strata below and above it allow detailed interpretations of climatically driven changes in this southern Gondwana palaeoecosystem. Sedimentological evidence suggests trackmaking under a semi-arid climate with heavy storms and episodic flash flooding that induced ephemeral, unconfined sheetwashes. The palaeosurface is overlain by rhythmically bedded, organic-matter rich mudstones that formed in a deep, stratified lake indicative of a longer and wetter period in the history of the site. The unique morphological details of the Ha Nohana tracks help refine the properties of the substrate during track making, the ichnotaxonomic affinities of the footprints and the interpretation of the foot movement relative to the substrate. Two footprint morphotypes, ~ 300 m apart, are defined on the palaeosurface. Tracks of morphotype I are tridactyl, shallow, contain digital pad impressions and were impressed on a firm, sand rippled substrate that underwent desiccation. Conversely, tracks of morphotype II are tetradactyl, deep, and have an elongated posterior region. These tracks are preserved on the surface of a massive sandstone and are associated with soft sediment collapse structures related to the animal’s foot sinking into the water-saturated, malleable sediment layer. Morphotype II tracks show that as the animal waded across the substrate, the liquefied sediment lost its cohesive strength and could only partially support the weight of the animal. In so doing, the animal’s foot sunk deep enough into the sediment such that the impression of the metatarsal and digit I (hallux) are now visible. Thus, the palaeosurface was walked on by small-to-medium sized theropods that traversed over ripple marks in firmer moist sand, as well as a larger theropod that tottered through water-logged sand.
Źródło:
Annales Societatis Geologorum Poloniae; 2018, 88, 2; 163-179
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Devonian thelodont Australolepis sp. (Thelodonti) from the Skały Formation, Holy Cross Mountains, Poland
Autorzy:
Turner, S.
Ginter, M.
Powiązania:
https://bibliotekanauki.pl/articles/139166.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Vertebrate palaeontology
taxonomy
biostratigraphy
Thelodonti
Turiniidae
Givetian
Northern Gondwana
Polska
paleontologia
kręgowce
taksonomia
biostratygrafia
telodonty
żywet
Gondwana
Polska
Opis:
Sparse fish microremains have been found in marine limestones from the Middle Devonian (Givetian) Skały Formation (Sitka Coral-Crinoid Limestone Member and Sierżawy Member), Świętomarz–Śniadka section, Bodzentyn Syncline, Łysogóry Region, northern Holy Cross Mountains, associated with conodonts of the hemiansatus to ansatus zones. Thelodont scales referred here to Australolepis sp. cf. A. seddoni come from near Śniadka village, from samples dated as hemiansatus to rhenanus/varcus zones. This increases the known range for the genus from its original find in Western Australia. The presence of a thelodont in the late Middle Devonian in Poland extends the known distribution of turiniids around the peri-Gondwana shorelines of Palaeotethys.
Źródło:
Acta Geologica Polonica; 2018, 68, 3; 467-473
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discovery of chemosynthesis-based association on the Cretaceous basal leatherback sea turtle from Japan
Autorzy:
JENKINS, ROBERT G.
KAIM, ANDRZEJ
SATO, KEI
MORIYA, KAZUHIRO
HIKIDA, YOSHINORI
HIRAYAMA, REN
Powiązania:
https://bibliotekanauki.pl/articles/945972.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
dermochelyoidae
provannidae
thyasiridae
vertebrate-fall
chemosynthesis-based ecosystem
cretaceous
japan
Opis:
We report a Late Cretaceous chemosynthetic community fueled by decomposing basal leatherback sea turtle on the ocean floor in the western Pacific. The fossil association representing this community has been recovered from the matrix of a concretion containing a single carapace of Mesodermochelys sp. from Late Cretaceous outer shelf to upper slope deposit of northern Hokkaido, Japan. The carapace displays boreholes most likely performed by boring bivalves, and is associated with molluscan shells, mainly Provanna cf. nakagawensis and Thyasira tanabei. Since this association is similar to fauna already known from Late Cretaceous hydrocarbon seeps, sunken wood, and plesiosaur-falls in Hokkaido, it is suggested that all types of chemosynthesis-based communities in the Late Cretaceous of western Pacific may have belonged to the same regional pool of animals and were not yet fully differentiated into three independent types of communities as it is known today. This finding also indicates that the sulfophilic stage of the vertebrate-fall communities was supported not only by plesiosaur carcasses, which were previously reported, but also by sea turtle carcasses. It highlights the possibility of surviving vertebrate-fall communities through the end-Cretaceous mass extinction event on carcasses of sea turtles which are the only large marine vertebrates surviving this event.
Źródło:
Acta Palaeontologica Polonica; 2017, 62, 4; 683-690
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Portal prezentujący kościonośny kajper Górnego Śląska w świetle wyników grantu N307 11703
The website presenting the bone-bearing Keuper of Upper Silesia, based on the research results of the grant N307 11703
Autorzy:
Racki, G.
Powiązania:
https://bibliotekanauki.pl/articles/2075737.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
górny trias
kajper
Górny Śląsk
stratygrafia
kręgowce
historia geologii
Upper Triassic
Keuper
Upper Silesia
stratigraphy
vertebrate sites
history of geology
Opis:
The major goal of the project “The evolution of terrestrial environments of the Upper Silesian Keuper as biotopes of vertebrates”, granted for Grzegorz Racki by the Ministry of Science and Higher Education (2009-2013), was an exhaustive, integrated study of the bone-enriched middle Keuper interval in terms of stratigraphy, sedimentology, mineralogy and geochemistry. The new website “Bone-bearing Keuper of the Upper Silesia, southern Poland” (http://www.ing.pan.pl/Keuper/Bone-bearing_Keuper-1.htm)presents in English the results of this project. The significant achievements are only a starting point to a comprehensive presentation of the complex Keuper themes, jointly with an extensive repository of regional literature (above 420 full-texted publications since 1790). In addition, the main results of the grant, as well as diversity of their implications for future studies are summarized herein, with emphasis on controversial geochronological aspects in vertebrate paleontology (how many bone-rich levels?), and in a broad historical context.
Źródło:
Przegląd Geologiczny; 2017, 65, 5; 275--281
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warunki depozycji szczątków kręgowców w osadach środowisk okołopływowych dolnego wapienia muszlowego (anizyku) w kopalni „Stare Gliny” koło Olkusza
Depositional conditions of vertebrate remains within the Lower Muschelkalk (Anisian) peritidal carbonates of the “Stare Gliny” quarry near Olkusz (Kraków-Silesia region, southern Poland)
Autorzy:
Matysik, M.
Surmik, D.
Powiązania:
https://bibliotekanauki.pl/articles/2075514.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
szczątki kręgowców
facja
urwisko
dolny wapień muszlowy
anizyk
Śląsk
vertebrate remains
cliff facies
Lower Muschelkalk
Anisian
Silesia
Opis:
A detailed sedimentological study of the Lower-Middle Muschelkalk (Middle Triassic) carbonate succession exposed at the “Stare Gliny” quarry near Olkusz (Kraków-Silesia region, southern Poland) revealed numerous vertebrate remains within its lowermost sedimentary unit. This 7-m-thick package onlaps a gently-inclined surface of a paleoisland made of the Devonian (Givetian) dolostones, and was deposited during a transgressive phase of the second Middle Triassic transgression onto the southern Poland. The package consists largely of: 1) unfossiliferous dolosiltites and fine-grained dolarenites, the tops of which commonly contain root molds and small-scale karstic forms; 2) breccias (minor conglomerates) with lithoclasts of Givetian dolostones; 3) dolocretes; and 4) dolomitic shales. This lithofacies association represents a restricted lagoon which experienced longer periods of emersion. A minor occurrence of cryptalgal laminites reflects only temporary sedimentation in the intertidal zone of a tidal flat. The bone fragments occur within all types of lithofacies, but the macroscopically distinguishable specimens have been found exclusively in the dolocretes. The poor preservation and advanced disarticulation of bones hinder unequivocal assessment of their affinity. The small size of bones suggests that they represent prolacertiforms (perhaps juvenile Macrocnemus) or other small archosauromorphs similar in sizes to Protorosaurus or Czatkowiella whose remains were found in the 1950s within cave deposits, in the same outcrop. Macrocnemus widely inhabited Middle Triassic lagoons and tidal flats across Paleo-Europe and thus seems to fit well to the peritidal setting surrounding the “Stare Gliny” paleoisland. The bone-bearing package occurs 30 metres below the 5-m-thick oncolitic package that is widely regarded as a correlation horizon over the entire Kraków-Silesia region, and 15 metres below the sequence boundary marking the top of the Górażdże Beds in the Opole region and the Olkusz Bedsin the Kraków-Silesiaregion.On the basis of the secor relations,a conclusion can be made that the vertebrate assemblage is Bithynian/Pelsonian (middle Anisian) in age.
Źródło:
Przegląd Geologiczny; 2016, 64, 7; 495--503
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Age and correlation of Late Triassic tetrapods from southern Poland
Autorzy:
Lucas, S. G.
Powiązania:
https://bibliotekanauki.pl/articles/191907.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Late Triassic
Polska
land-vertebrate faunachron
Krasiejów level
Lisowice level
Adamanian
Revueltian
Opis:
Age assignments of Triassic tetrapod fossils can be achieved by direct reference to a scheme of Triassic land-vertebrate faunachrons (LVFs) that correlates Triassic tetrapod fossil assemblages to each other based solely on the tetrapod fossils. Correlation of Triassic tetrapod assemblages to the standard global chronostratigraphic scale (SGCS, the “marine timescale”) is a separate cross correlation between the vertebrate biochronology and marine biochronology that usually relies on other data (e. g., palynostratigraphy, magnetostratigraphy, radioisotopic ages) to be completed. Late Triassic tetrapod fossils in southern Poland are found at two stratigraphic positions, the Krasiejów and Lisowice levels. The tetrapod assemblage of the Krasiejów level is assigned to the early Adamanian LVF based primarily on the stratigraphic overlap of the phytosaur Parasuchus with the Adamanian index aetosaur Stagonolepis. The amphibians Cyclotosaurus and Gerrothorax, a Proterochersis-like turtle and the aetosaur Paratypothorax from the Lisowice level indicate it is assignable to the Revueltian LVF. Cross correlations to the SGCS are less definitive, but suggest that the Krasiejów level is late Carnian and the Lisowice level is early/middle Norian. However, this correlation of the Krasiejów level is confounded by disagreements over correlation of the marine Carnian–Norian boundary to nonmarine strata. Indeed, the possibility that the Krasiejów tetrapods fill a gap in the early Norian record of tetrapods merits consideration. Such difficulties emphasize the value of correlating tetrapod assemblages to each other using a land-vertebrate biostratigraphy/biochronology, instead of immediately attempting the more problematic correlation to the SGCS.
Źródło:
Annales Societatis Geologorum Poloniae; 2015, 85, 4; 627-635
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formacja grabowska : podstawowa jednostka litostratygraficzna kajpru Górnego Śląska
Grabowa Formation : the basic lithostratigraphic unit of the Upper Silesian Keuper
Autorzy:
Szulc, J.
Racki, G.
Powiązania:
https://bibliotekanauki.pl/articles/2075286.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
górny trias
Górny Śląsk
litostratygrafia
formacja grabowska
kręgowce
Upper Triassic
Upper Silesia
lithostratigraphy
Grabowa Formation
vertebrate sites
Opis:
Lithostratigraphic division of the Upper Silesian Keuper continental succession belongs to abandoned matters, even if newly-discovered sites with unique vertebrate faunas highlight an increasing request to more precise designation of their stratigraphic setting. As a result of multidisciplinary grant and with a guide use of new borehole sections, a major lithostratigraphic unit is formally proposed for the middle Keuper (i.e., above the Schilfsandstein; Stuttgart Formation in Stratigraphische Tabelle von Deutschland, 2002), based on previously inaccurately used unit, Grabowa Formation of Bilan (1976). The re-defined Formation of Variegated Mudstones and Carbonates from Grabowa includes Upper Gypsum Beds and Steinmergelkeuper in traditional scheme from Germany (=Weser and Arnstadt Formations), and generally correlates with the Norian stage. Two bone-bearing horizons (Krasiejów and Lisowice) are placed within the unit, which is completely subdivided in three members: Ozimek (mudstone-evaporate), Patoka (marly mudstone-sandstone) and WoŸniki (limestone).
Źródło:
Przegląd Geologiczny; 2015, 63, 2; 103--113
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New fossil remains from the Pliocene Koetoi Formation of northern Japan provide insights into growth rates and the vertebral evolution of porpoises
Autorzy:
Murakami, M.
Shimada, C.
Hikida, Y.
Hirano, H.
Powiązania:
https://bibliotekanauki.pl/articles/945576.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
paleontology
new fossil
remains
Pliocene
Koetoi Formation
Japan
growth rate
vertebrate evolution
Mammalia
Phocoenidae
age estimation
Opis:
Extant porpoises (Phocoenidae) are odontocetes characterized by their small size, short and wide rostrum, late (or absent) completion of epiphyseal ankylosis in the vertebral column (= physical maturity), and short life cycles, all of which are thought to have resulted from progenetic evolution. We describe a small fossil phocoenid from the lower Pliocene Koetoi Formation of Hokkaido (northern Japan), preserving a small, narrow rostrum, as well as anteroposteriorly elongate thoracic and lumbar vertebral centra with completely fused epiphyses. Physical maturity in this specimen occurred significantly earlier than in extant phocoenids, as shown by dental data indicating that the specimen died at only four years of age. The difference between the present material and extant porpoises may be attributable to different growth rates during ontogeny. The long centra and caudally inclined neural spines of the specimen from Hokkaido are primitive characters among phocoenids. By contrast, the great height of its neural spines is highly derived, even among extant species, and suggestive of a fast swimmer. In terms of its vertebral morphology, the new specimen falls within a morphological continuum defined by the archaic Numataphocoena yamashitai and the highly derived vertebral morphology of Phocoenoides dalli. Phocoenid vertebral evolution has been complex and frequently convergent, as opposed to stepwise and unidirectional. The different vertebral morphologies of the new specimen and the contemporaneous extinct taxa Numataphocoena and Piscolithax longirostris indicate that they were adapted to different environments.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 1; 97-111
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upper Devonian microvertebrates from the Canning Basin, Western Australia
Autorzy:
Roelofs, B.
Playton, T.
Barham, M.
Trinajstic, K.
Powiązania:
https://bibliotekanauki.pl/articles/139273.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Vertebrate palaeontology
Chondrichthyes
Thelodonti
Frasnian
Famennian
Lennard Shelf
Gondwana
paleontologia
kręgowce
chrzęstniki
telodonty
fran
famen
Opis:
A diverse microvertebrate fauna is described from the Virgin Hills and Napier formations, Bugle Gap Limestone Canning Basin, Western Australia. Measured sections at Horse Spring and Casey Falls (Virgin Hills Formation) and South Oscar Range (Napier Formation) comprise proximal to distal slope carbonates ranging in age from the Late Devonian Frasnian to middle Famennian. A total of 18 chondrichthyan taxa are identified based on teeth, including the first record of Thrinacodus tranquillus, Cladoides wildungensis, Protacrodus serra and Lissodus lusavorichi from the Canning Basin. A new species, Diademodus dominicus sp. nov. is also described and provides the first record of this genus outside of Laurussia. In addition, the upper range of Australolepis seddoni has been extended to Late Devonian conodont Zone 11, making it the youngest known occurrence for this species. The Virgin Hills and Napier formations microvertebrate faunas show close affinities to faunas recovered from other areas of Gondwana, including eastern Australia, Iran, Morocco and South China, which is consistent with known conodont and trilobite faunas of the same age.
Źródło:
Acta Geologica Polonica; 2015, 65, 1; 69-100
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Upper Triassic vertebrate tracks from Kraków–Częstochowa Upland, southern Poland
Autorzy:
Sadlok, G.
Wawrzyniak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/191435.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
vertebrate tracks
Upper Triassic
Kraków-Częstochowa Upland
Polska
Opis:
The first Upper Triassic vertebrate fossil tracks are documented from the Zawiercie locality, Kraków–Częstochowa Upland, southern Poland. The most characteristic components of the assemblage are tracks, assig- nable to archosaurs and dicynodonts. The inferred composition of the fauna is comparable to those of much better studied, contemporaneous sites in Italy, Argentina and the USA.
Źródło:
Annales Societatis Geologorum Poloniae; 2013, 83, 2; 105--111
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 41

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