Results 61 to 70 of about 423 (165)

Biomechanical modeling of musculoskeletal function related to the terrestrial locomotion of Riojasuchus tenuisceps (Archosauria: Ornithosuchidae)

The Anatomical Record, Volume 308, Issue 2, Page 369-393, February 2025.
Abstract Riojasuchus tenuisceps was a pseudosuchian archosaur from the Late Triassic period in Argentina. Like other ornithosuchids, it had unusual morphology such as a unique “crocodile‐reversed” ankle joint, a lesser trochanter as in dinosaurs and a few other archosaurs, robust vertebrae, and somewhat shortened, gracile forelimbs.
M. Belen von Baczko, Juned Zariwala, Sarah Elizabeth Ballentine, Julia B. Desojo, John R. Hutchinson   +4 more
wiley   +1 more source

Pseudosuchian thermometabolism: A review of the past two decades

The Anatomical Record, Volume 308, Issue 2, Page 315-341, February 2025.
Abstract Pseudosuchia, one of the two main clades of Archosauria, is today only represented by some 20 extant species, the crocodilians, representing only a fraction of its extinct diversity. Extant crocodilians are ectotherms but present morphological and anatomical features usually associated with endothermy.
Mathieu Gabriel Faure‐Brac
wiley   +1 more source

Archosauromorph extinction selectivity during the Triassic–Jurassic mass extinction [PDF]

, 2019
Many traits have been linked to extinction risk among modern vertebrates, including mode of life and body size. However, previous work has indicated there is little evidence that body size, or any other trait, was selective during past mass extinctions ...
Stubbs, Thomas L., Puttick, Mark N., Allen, Bethany, Benton, Michael, Puttick, Mark, Benton, Michael J., Allen, Bethany; id_orcid, Stubbs, Tom   +7 more
core   +1 more source

Supplementary Information.zip from A new archosauriform species from the panchet formation of India and the diversification of proterosuchidae after the end-permian mass extinction

, 2023
Proterosuchidae represents the oldest substantial diversification of Archosauromorpha and plays a key role in understanding the biotic recovery after the end-Permian mass extinction.
Kasturi Sen (17066551), Richard J. Butler (9698948), Roland B. Sookias (9074033), Sterling J. Nesbitt (7342976), Martín D. Ezcurra (9698930), Dhurjati P. Sengupta (17066548), Andrey G. Sennikov (7832045), Saswati Bandyopadhyay (3192070)   +7 more
core   +1 more source

The topological organization of the turtle cranium is constrained and conserved over long evolutionary timescales

The Anatomical Record, Volume 307, Issue 8, Page 2713-2748, August 2024.
Abstract The cranium of turtles (Testudines) is characterized by the secondary reduction of temporal fenestrae and loss of cranial joints (i.e., characteristics of anapsid, akinetic skulls). Evolution and ontogeny of the turtle cranium are associated with shape changes.
Eve Miller, Hiu Wai Lee, Arkhat Abzhanov, Serjoscha W. Evers   +3 more
wiley   +1 more source

Figure 4 in A new species of basal rhynchosaur (Diapsida: Archosauromorpha) from the early Middle Triassic of South Africa, and the early evolution of Rhynchosauria

, 2015
Figure 4. Eohyosaurus wolvaardti gen. et sp. nov., SAM-PK-K10159, close-up photographs. Anterior end of the skull as preserved in left (A) and right (B) lateral views; temporal region of the skull in right lateral view (C); left squamosal, quadrate, and ...
Samathi, Adun, Butler, Richard J., Montefeltro, Felipe C., Ezcurra, Martín D., Sobral, Gabriela   +4 more
core   +1 more source

Osteology of the archosauromorph Teyujagua paradoxa and the early evolution of the archosauriform skull [PDF]

, 2020
Archosauriformes are a major group of fossil and living reptiles that include the crown group Archosauria (birds, crocodilians, and their extinct relatives) and closely related taxa.
Pinheiro, Felipe, Oliveira, Daniel, Butler, Richard; id_orcid   +2 more
core   +1 more source

SIMONETTOIA TILAVENTINA, A NEW TANYSTROPHEID (DIAPSIDA ARCHOSAUROMORPHA) FROM THE UPPER TRIASSIC (NORIAN) OF NORTHEASTERN ITALY

Rivista Italiana di Paleontologia e Stratigrafia
A new small tanystropheid archosauromorph is described from the Norian Dolomia di Forni Formation of the Friuli Venezia Giulia Autonomous Region, northeastern Italy.
SILVIO RENESTO, FRANCO SALLER, FABIO MARCO DALLA VECCHIA   +2 more
doaj   +1 more source

The postcranial anatomy and osteohistology of Terrestrisuchus gracilis (Archosauria, Crocodylomorpha) from the Late Triassic of Wales

Papers in Palaeontology, Volume 10, Issue 4, July/August 2024.
Abstract The earliest crocodylomorphs, known as non‐crocodyliform crocodylomorphs, first appeared during the Late Triassic. In contrast to extant crocodylians, which are all semi‐aquatic, early crocodylomorphs represent terrestrial taxa with a fully erect posture and in most cases a small body size.
Stephan N. F. Spiekman, Richard J. Butler, Susannah C. R. Maidment   +2 more
wiley   +1 more source

The osteology of Shringasaurus indicus, an archosauromorph from the Middle Triassic Denwa Formation, Satpura Gondwana Basin, Central India

, 2022
Archosauromorpha originated in the middle–late Permian and started to diversify in both non-marine and marine ecosystems dominating the world by the Triassic. The evolution of this group is poorly documented because the fossil record is limited.
Saradee Sengupta (12112582), Saswati Bandyopadhyay (3192070)   +1 more
core   +1 more source