Results 31 to 40 of about 55,935 (264)

Spondarthritis in the Triassic

PLoS ONE, 2010
The evidence of several forms of arthritis has been well documented in the fossil record. However, for pre-Cenozoic vertebrates, especially regarding reptiles, this record is rather scarce. In this work we present a case report of spondarthritis found in a vertebral series that belonged to a carnivorous archosaurian reptile from the Lower Triassic ...
Juan Carlos Cisneros, Uiara Gomes Cabral, Frikkie de Beer, Ross Damiani, Daniel Costa Fortier   +4 more
openaire   +4 more sources

High-resolution carbon isotope changes in the Permian-Triassic boundary interval, Chongqing, South China; implications for control and growth of earliest Triassic microbialites [PDF]

, 2009
High-resolution delta13C_CARB analysis of the Permian-Triassic boundary (PTB) interval at the Laolongdong section, Beibei, near the city of Chongqing, south China, encompasses the latest Permian and earliest Triassic major facies changes in the South ...
Kershaw, S, Guo, Li, Le Heron, D.P., D.P. Le Heron, Qi, Y, Wilson, C., Reynolds, Alan, H.A. Armstrong, Gindre, L., Mu, X, Reynolds, A, Kershaw, Steve, Armstrong, H.A., Li, Y, Qi, Yuping, Howard, J.P., L. Gindre, Li, Yue, Mu, Xinan, C. Wilson, Guo, L, LeHeron, D., Wilson, C.R., J.P. Howard   +23 more
core   +1 more source

The Khadzhokh Canyon System—An Important Geosite of the Western Caucasus

Geosciences, 2020
True diversity of geological heritage sites (geosites) is yet to be fully understood. New field studies of the Khadzhokh Canyon and its vicinities in the Western Caucasus (Mountainous Adygeya tourist destination, southwestern Russia) have allowed ...
Anna V. Mikhailenko, Dmitry A. Ruban, Vladimir A. Ermolaev   +2 more
doaj   +1 more source

Ostracods (Crustacea) associated with microbialites across the Permian-Triassic boundary in Dajiang (Guizhou Province, South China) [PDF]

, 2012
26 samples were processed for a taxonomic study of ostracods from the Upper Permian (Changhsingian) - Lower Triassic (Griesbachian) interval of the Dajiang section, Guizhou Province, South China. 112 species belonging to 27 genera are recognized.
Marie-Beatrice FOREL, Forel, Marie-Béatrice, Forel, Marie-B\ue9atrice   +2 more
core   +1 more source

The craniomandibular anatomy of the early archosauriform Euparkeria capensis and the dawn of the archosaur skull [PDF]

Royal Society Open Science, 2020
Archosauria (birds, crocodilians and their extinct relatives) form a major part of terrestrial ecosystems today, with over 10 000 living species, and came to dominate the land for most of the Mesozoic (over 150 Myr) after radiating following the Permian ...
Roland B. Sookias, David Dilkes, Gabriela Sobral, Roger M. H. Smith, Frederik P. Wolvaardt, Andrea B. Arcucci, Bhart-Anjan S. Bhullar, Ingmar Werneburg   +7 more
doaj   +1 more source

A Triassic crown squamate

Science Advances, 2022
Mammals, birds, and squamates (lizards, snakes, and relatives) are key living vertebrates, and thus understanding their evolution underpins important questions in biodiversity science. Whereas the origins of mammals and birds are relatively well understood, the roots of squamates have been obscure.
Whiteside, David I., Chambi-Trowell, Sofía A. V., Benton, Michael J.   +2 more
openaire   +4 more sources

The sail-backed reptile Ctenosauriscus from the latest Early Triassic of Germany and the timing and biogeography of the early archosaur radiation [PDF]

, 2011
Background Archosaurs (birds, crocodilians and their extinct relatives including dinosaurs) dominated Mesozoic continental ecosystems from the Late Triassic onwards, and still form a major component of modern ecosystems (>10,000 species). The earliest
Reich, Mike, Stephen L. Brusatte, Hornung, Jahn Jochen, Hornung Jahn J., Nesbitt, Sterling J., Rainer R Schoch, Richard J. Butler, Schoch Rainer R., Hornung, J.J., Rainer R. Schoch, Farke, Andrew Allen, Butler Richard J., Nesbitt, S.J., Brusatte, Stephen L., Butler, Richard J.; id_orcid, Butler, Richard J., Richard J Butler, Butler, R.J., Jahn J Hornung, Sterling J. Nesbitt, Schoch, Rainer R., Hornung, Jahn J., Brusatte, S.L.; id_orcid, Schoch, R.R., Nesbitt Sterling J., Reich Mike, Mike Reich, Brusatte Stephen L., Sterling J Nesbitt, Reich, M., Stephen L Brusatte, Jahn J. Hornung   +31 more
core   +1 more source

AGE OF THE AMNUNAKTA MONZOGABBRO-MONZODIORITE MASSIF IN THE SOUTHERN FRAMING OF THE SIBERIAN CRATON

Геодинамика и тектонофизика, 2020
The first geochronological data have been obtained for Amnunakta massif composed of monzogabbro-monzodiorite and located in the southeastern part of the Selenga-Stanovoy superterrane.
I. V. Buchko, A. A. Rodionov, E. B. Salnikova   +2 more
doaj   +1 more source

Pre-Carpels from the Middle Triassic of Spain

Plants, 2022
In stark contrast to the multitude of hypotheses on carpel evolution, there is little fossil evidence testing these hypotheses. The recent discovery of angiosperms from the Early Jurassic makes the search for precursors of angiosperm carpels in the ...
Artai A. Santos, Xin Wang
doaj   +1 more source

Revision of the thylacocephalan biota from the Upper Triassic Polzberg Konservat-Lagerstätte, Austria [PDF]

Acta Palaeontologica Polonica
Known for over 140 years, the Upper Triassic Polzberg Konservat-Lagerstätte is an exceptional early Carnian marine assemblage discovered in the Northern Calcareous Alps of Lower Austria. The Polzberg biota is composed of a diverse marine fauna, including
Thomas Laville, Petra Lukeneder, Alexander Lukeneder   +2 more
doaj   +1 more source