Results 41 to 50 of about 265 (132)

Inferred presence of extraoral tissues in Triassic archosauromorphs and the evolutionary implications for the clade Sauropsida

Palaeontology, Volume 69, Issue 3, 2026.
Abstract Recent work has suggested that the presence of extraoral soft tissues (‘lips’), in the form of labial scales in theropod dinosaurs, could be inferred based on: anteroposteriorly distributed foramina in the rostral bones, similar to extant lepidosaurs; vertically projected teeth; uniform enamel thickness in maxillary teeth; and an allometric ...
Rafael Terras, Jaqueline Borger, Manuelle O. P. Almeida, Silvia Bettin, Owen A. Higgins, Giulia Marciani, Stefano Benazzi, Rodrigo T. Müller, Leonardo Kerber, Mirian Carbonera   +9 more
wiley   +1 more source

Osteology of a New Specimen of Macrocnemus aff. M. fuyuanensis (Archosauromorpha, Protorosauria) from the Middle Triassic of Europe: Potential Implications for Species Recognition and Paleogeography of Tanystropheid Protorosaurs

Frontiers in Earth Science, 2017
Over the past two decades, a wealth of marine and terrestrial reptiles, including protorosaurian archosauromorphs, has been described from Triassic shales and limestone layers in southern China.
Vivien P. Jaquier, Nicholas C. Fraser, Heinz Furrer, Torsten M. Scheyer   +3 more
doaj   +1 more source

Braincase anatomy and palaeoneurology of Venetoraptor gassenae, a lagerpetid pterosauromorph from the Late Triassic of southern Brazil

Palaeontology, Volume 69, Issue 2, 2026.
Abstract There is a growing consensus that pterosaurs and the flightless Lagerpetidae are closely related. This relationship is supported by apomorphies throughout the skeleton, including endocranial character states such as a well‐developed floccular fossa and a tall anterior semicircular canal. Our knowledge of lagerpetid anatomy has been improved by
Lísie V.S. Damke, Leonardo Kerber, Mario Bronzati, Maurício S. Garcia, Martín D. Ezcurra, Sterling J. Nesbitt, Rodrigo T. Müller   +6 more
wiley   +1 more source

Pre‐oviposition development of the brown anole (Anolis sagrei)

Developmental Dynamics, Volume 255, Issue 2, Page 145-167, February 2026.
Abstract Background The brown anole, Anolis sagrei, has emerged as a representative squamate species for developmental studies during the past decades. Novel functional tools have been established to manipulate embryogenesis through genome editing or the introduction of small molecule inhibitors, and their effective use requires a thorough ...
Antonia Weberling, Natalia A. Shylo, Bonnie K. Kircher, Hannah Wilson, Melainia McClain, Marta Marchini, Katherine B. Starr, Thomas J. Sanger, Florian Hollfelder, Paul A. Trainor   +9 more
wiley   +1 more source

Osteohistological signal from the smallest known phytosaur femur reveals slow growth and new insights into the evolution of growth in Archosauria

Journal of Anatomy, Volume 247, Issue 3-4, Page 556-575, September/October 2025.
The paucity of small, skeletally immature individuals representing the earliest ontogenetic stages of extinct archosaurs complicates our understanding of the growth dynamics within and between species. The opportune finding of the smallest phytosaur femora reveals slow growth, a surprising signal considering that larger phytosaurs in North America have
Erika R. Goldsmith, Daniel E. Barta, Ben T. Kligman, Sterling J. Nesbitt, Adam D. Marsh, William G. Parker, Michelle R. Stocker   +6 more
wiley   +1 more source

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

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

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

I believe I can fly… New implications for the mode of life and palaeoecology of the Late Triassic Ozimek volans based on its unique long bone histology

Palaeontology, Volume 67, Issue 3, May/June 2024.
Abstract The small diapsid reptile Ozimek volans is one of the most enigmatic representatives of the Late Triassic fauna of Krasiejów, Poland. Phylogenetically, Ozimek was identified as a ‘protorosaurian’ related to tanystropheids, but the extremely elongated limbs and presumed gliding abilities are unusual for this group.
Dorota Konietzko‐Meier, Elżbieta M. Teschner, Agnieszka Tańczuk, P. Martin Sander   +3 more
wiley   +1 more source

Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia

The Anatomical Record, Volume 307, Issue 4, Page 1147-1174, April 2024.
Abstract The anatomy of the braincase and associated soft tissues of the lagerpetid Dromomeron gregorii (Archosauria: Avemetatarsalia) from the Late Triassic of the United States is here described. This corresponds to the first detailed description of cranial materials of Lagerpetidae, an enigmatic group of Late Triassic (c.
Mario Bronzati, Max C. Langer, Martín D. Ezcurra, Michelle R. Stocker, Sterling J. Nesbitt   +4 more
wiley   +1 more source