Results 41 to 50 of about 652 (199)

Whole‐body endothermy: ancient, homologous and widespread among the ancestors of mammals, birds and crocodylians

open access: yesBiological Reviews, Volume 97, Issue 2, Page 766-801, April 2022., 2022
ABSTRACT The whole‐body (tachymetabolic) endothermy seen in modern birds and mammals is long held to have evolved independently in each group, a reasonable assumption when it was believed that its earliest appearances in birds and mammals arose many millions of years apart.
Gordon Grigg   +5 more
wiley   +1 more source

Pterodactylus scolopaciceps Meyer, 1860 (Pterosauria, Pterodactyloidea) from the Upper Jurassic of Bavaria, Germany:the problem of Cryptic Pterosaur Taxa in early ontogeny [PDF]

open access: yes, 2014
The taxonomy of the Late Jurassic pterodactyloid pterosaur Pterodactylus scolopaciceps Meyer, 1860 from the Solnhofen Limestone Formation of Bavaria, Germany is reviewed. Its nomenclatural history is long and complex, having been synonymised with both P.
David M Martill   +7 more
core   +1 more source

A specimen of Rhamphorhynchus with soft tissue preservation, stomach contents and a putative coprolite [PDF]

open access: yesPeerJ, 2015
Despite being known for nearly two centuries, new specimens of the derived non-pterodactyloid pterosaur Rhamphorhynchus continue to be discovered and reveal new information about their anatomy and palaeobiology.
David Hone   +3 more
doaj   +2 more sources

Notice of a new suborder of Pterosauria [PDF]

open access: yesAmerican Journal of Science, 1876
(1876). Notice of a new Suborder of Pterosauria. Annals and Magazine of Natural History: Vol. 18, No. 104, pp. 195-196.
openaire   +2 more sources

Oldest azhdarchid (Pterosauria) record from South America

open access: yesRevista del Museo Argentino de Ciencias Naturales, 2023
Abstract Azhdarchid pterosaurs in South America were hitherto represented by two taxa coming from Coniacian-Santonian and Maastrichtian beds, of the Mendoza and Río Negro provinces, respectively, in Argentina. Here we report an incomplete pterosaur cervical vertebra from Cenomanian beds exposed at the east shore of Ezequiel Ramos Mexía Reservoir at the
Agnolín, Federico L.   +3 more
openaire   +2 more sources

A REVISION OF THE ANATOMY OF THE TRIASSIC PTEROSAUR AUSTRIADRACO DALLAVECCHIAI KELLNER, 2015 AND OF ITS DIAGNOSIS

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2021
Several skeletal elements preserved in the holotype and only specimen of the pterosaur Austriadraco dallavecchiai Kellner, 2015 (uppermost Triassic, Austria) have not been identified or have remained undescribed in previous works.
FABIO MARCO DALLA VECCHIA
doaj   +1 more source

The first pterosaur pelvic material from the Dinosaur Park Formation (Campanian) and implications for azhdarchid locomotion

open access: yesFACETS, 2017
A partial pterosaur pelvis from the Campanian Dinosaur Park Formation of Canada adds to our knowledge of Late Cretaceous pterosaurs. The pelvis is tentatively referred to Azhdarchidae and represents the first pelvic material from a North American ...
Gregory F. Funston   +2 more
doaj   +1 more source

The ankle joint of Pterodaustro guinazui [PDF]

open access: yesActa Palaeontologica Polonica
The hindlimb of pterosaurs has been much less studied than the pterosaur wing. However, it is relevant to understand the evolution, phylogeny and ecology of these animals.
ROMAIN BURLOT   +3 more
doaj   +1 more source

Variable preservation potential and richness in the fossil record of vertebrates

open access: yesPalaeontology, Volume 63, Issue 2, Page 313-329, March 2020., 2020
Abstract Variation in preservation and sampling probability clouds our estimates of past biodiversity. The most extreme examples are Lagerstätten faunas and floras. Although such deposits provide a wealth of information and represent true richness better than other deposits, they can create misleading diversity peaks because of their species richness ...
Fiona M. Walker   +3 more
wiley   +1 more source

Frequência de preservação de biomateriais não mineralizados no registro fóssil de répteis mesozoicos: uma abordagem sobre pterossauros e répteis marinhos / Frequency of non-mineralized biomaterials preservation in the fossil record of Mesozoic reptiles: an approach on pterosaurs and marine reptiles [PDF]

open access: yes, 2021
Nas últimas décadas, vários estudos encontraram preservação excepcional de diferentes biomoléculas originais em dinossauros. Porém, grupos distintos de répteis que dominaram ares, mares e oceanos na Era Mesozoica, como pterossauros, ictiossauros ...
Machado, Marcio Fraiberg   +1 more
core   +1 more source

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