Results 1 to 10 of about 303 (138)

A review of Coelostegus prothales Carroll and Baird, 1972 from the Upper Carboniferous of the Czech Republic and the interrelationships of basal eureptiles. [PDF]

open access: yesPLoS ONE, 2023
We redescribe the holotype and only known specimen of the early eureptile Coelostegus prothales from the Upper Carboniferous of the Czech Republic using photogrammetric scanning and a virtual 3D rendition of its skull.
Jozef Klembara   +5 more
doaj   +2 more sources

The Inference of the Evolution of Immune Traits as Constrained by Phylogeny: Insight into the Immune System of the Basal Diapsid [PDF]

open access: yesAnimals, 2022
Among vertebrates, some of the most vulnerable taxa to emergent fungal pathogens are members of Reptilia. In light of the growing threat of emergent fungal pathogens affecting wildlife, it is important to broaden the current understanding of immune ...
Jorge E. López-Pérez   +2 more
doaj   +2 more sources

Osteology, relationships and functional morphology of Weigeltisaurus jaekeli (Diapsida, Weigeltisauridae) based on a complete skeleton from the Upper Permian Kupferschiefer of Germany [PDF]

open access: yesPeerJ, 2021
Background Weigeltisauridae is a clade of small-bodied diapsids characterized by a horned cranial frill, slender trunk and limbs, and a patagium supported by elongated bony rods.
Adam C. Pritchard   +3 more
doaj   +3 more sources

An armoured marine reptile from the Early Triassic of South China and its phylogenetic and evolutionary implications [PDF]

open access: yeseLife, 2023
Sauropterygia was a taxonomically and ecomorphologically diverse clade of Mesozoic marine reptiles spanning the Early Triassic to the Late Cretaceous.
Andrzej S Wolniewicz   +7 more
doaj   +2 more sources

The braincase anatomy of Simosaurus gaillardoti (Diapsida: Sauropterygia) revealed with X-ray micro-computed tomography [PDF]

open access: yesPeerJ
Sauropterygia is a clade of Mesozoic marine reptiles that includes the eosauropterygian Simosaurus gaillardoti Von Meyer, 1842, classically considered to be a member of Nothosauroidea.
Elisa H. London   +3 more
doaj   +3 more sources

Rapid neck elongation in Sauropterygia (Reptilia: Diapsida) revealed by a new basal pachypleurosaur from the Lower Triassic of China [PDF]

open access: yesBMC Ecology and Evolution, 2023
Neck elongation has appeared independently in several tetrapod groups, including giraffes and sauropod dinosaurs on land, birds and pterosaurs in the air, and sauropterygians (plesiosaurs and relatives) in the oceans.
Qi-Ling Liu   +6 more
doaj   +2 more sources

An injured pachypleurosaur (Diapsida: Sauropterygia) from the Middle Triassic Luoping Biota indicating predation pressure in the Mesozoic [PDF]

open access: yesScientific Reports, 2021
The Middle Triassic Luoping Biota in south-west China represents the inception of modern marine ecosystems, with abundant and diverse arthropods, fishes and marine reptiles, indicating recovery from the Permian–Triassic mass extinction.
Qiling Liu   +7 more
doaj   +2 more sources

New insights into pterosaur cranial anatomy: X-ray imaging reveals palatal structure and evolutionary trends [PDF]

open access: yesCommunications Biology
Among the least studied portion of the pterosaur skeleton is the palate, which tends to be poorly preserved and commonly only visible from one side (the ventral portion).
He Chen   +3 more
doaj   +2 more sources

The oldest record of Saurosphargiformes (Diapsida) from South China could fill an ecological gap in the Early Triassic biotic recovery [PDF]

open access: yesPeerJ, 2022
Diversification following the end-Permian mass extinction marks the initiation of Mesozoic reptile dominance and of modern marine ecosystems, yet major clades are best known from the Middle Triassic suggesting delayed recovery, while Early Triassic ...
Long Cheng   +6 more
doaj   +3 more sources

A bird-like skull in a Triassic diapsid reptile increases heterogeneity of the morphological and phylogenetic radiation of Diapsida [PDF]

open access: yesRoyal Society Open Science, 2017
The Triassic Period saw the first appearance of numerous amniote lineages (e.g. Lepidosauria, Archosauria, Mammalia) that defined Mesozoic ecosystems following the end Permian Mass Extinction, as well as the first major morphological diversification of ...
Adam C. Pritchard, Sterling J. Nesbitt
doaj   +2 more sources

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