Results 21 to 30 of about 262 (132)

A new occurrence of the Late Triassic archosaur Smok in southern Poland [PDF]

Acta Palaeontologica Polonica, 2018
Two isolated teeth, a dorsal vertebra, fragments of a humerus and femur, a fragmentary pubic “boot” and part of an ischium shaft, identified here as belonging to a large predatory archosaur were discovered in the Upper Triassic site at Marciszów near ...
Grzegorz Niedźwiedzki, Ewa Budziszewska-Karwowska   +1 more
doaj   +1 more source

Rapid Initial Morphospace Expansion and Delayed Morphological Disparity Peak in the First 100 Million Years of the Archosauromorph Evolutionary Radiation

Frontiers in Earth Science, 2021
Adaptive radiations have played a major role in generating modern and deep-time biodiversity. The Triassic radiation of the Archosauromorpha was one of the most spectacular vertebrate radiations, giving rise to many highly ecomorphologically varied ...
Christian Foth, Christian Foth, Roland B. Sookias, Roland B. Sookias, Roland B. Sookias, Martín D. Ezcurra, Martín D. Ezcurra   +6 more
doaj   +1 more source

Bone histology of Azendohsaurus laaroussii: Implications for the evolution of thermometabolism in Archosauromorpha [PDF]

Paleobiology, 2019
Abstract This paper is aimed at constraining the phylogenetic frame of the acquisition of endothermy by Archosauromorpha. We analyzed the bone histology of Azendohsaurus laaroussii . Stylopodial and zeugopodial bones show three tissue types: (1) avascular lamellar zonal bone
Cubo, Jorge, Jalil, Nour-Eddine
openaire   +2 more sources

A new proterochampsid archosauriform from the Middle–Upper Triassic of Southern Brazil [PDF]

Acta Palaeontologica Polonica
Proterochampsidae is a clade of carnivorous archosauriforms that lived during the Triassic and is characterized by an elongated rostrum with dorsally oriented external nares, and a unique pes configuration.
RODRIGO T. MÜLLER
doaj   +1 more source

An early Late Triassic long-necked reptile with a bony pectoral shield and gracile appendages [PDF]

Acta Palaeontologica Polonica, 2016
Several partially articulated specimens and numerous isolated bones of Ozimek volans gen. et sp. nov., from the late Carnian lacustrine deposits exposed at Krasiejów in southern Poland, enable a reconstruction of most of the skeleton.
Jerzy Dzik, Tomasz Sulej
doaj   +1 more source

A taxonomic revision and cranial description of Terrestrisuchus gracilis (Archosauria, Crocodylomorpha) from the Upper Triassic of Pant‐y‐Ffynnon Quarry (southern Wales)

Papers in Palaeontology, Volume 9, Issue 6, November/December 2023., 2023
Abstract Non‐crocodyliform crocodylomorphs, formerly referred to the informal group ‘Sphenosuchia’, are the earliest known crocodylomorph precursors of extant crocodylians. They are therefore crucial for our understanding of early crocodylian evolution and the origin of typical crocodylian characteristics, such as the formation of a secondary palate ...
Stephan N. F. Spiekman, Vincent Fernandez, Richard J. Butler, Kathleen N. Dollman, Susannah C. R. Maidment   +4 more
wiley   +1 more source

Bone Histology of Phytosaur, Aetosaur, and Other Archosauriform Osteoderms (Eureptilia, Archosauromorpha) [PDF]

The Anatomical Record, 2013
ABSTRACTAs in other archosauriforms, phytosaurs and aetosaurs are characterized by the presence of well‐developed osteoderms. Here we provide a comparative study on the microstructure of phytosaur (five taxa) and aetosaur (thirteen taxa) osteoderms.
Scheyer Torsten M, Desojo Julia B, Cerda Ignacio A   +2 more
openaire   +5 more sources

Widespread azendohsaurids (Archosauromorpha, Allokotosauria) from the Late Triassic of western USA and India [PDF]

Papers in Palaeontology, 2021
AbstractArchosauromorph reptiles underwent rapid lineage diversification, increases in morphological and body size disparity, and expansion into new adaptive landscapes. Several of the primary early archosauromorph clades (e.g. rhynchosaurs) are easy to differentiate from others because of their characteristic body types, whereas the more lizard‐like ...
Sterling J. Nesbitt, Michelle R. Stocker, Martín D. Ezcurra, Nicholas C. Fraser, Andrew B. Heckert, William G. Parker, Bill Mueller, Saradee Sengupta, Saswati Bandyopadhyay, Adam C. Pritchard, Adam D. Marsh   +10 more
openaire   +2 more sources

Feeding habits of the Middle Triassic pseudosuchian Batrachotomus kupferzellensis from Germany and palaeoecological implications for archosaurs

Palaeontology, Volume 65, Issue 3, May/June 2022., 2022
Abstract Bite traces on fossil bones are key to deciphering feeding ecology and trophic interactions of vertebrate past ecosystems. However, similarities between traces produced by different carnivorous taxa with similar dentitions, and misidentifications due to equifinality, hinder confident identifications of the bite makers.
Eudald Mujal, Christian Foth, Erin E. Maxwell, Dieter Seegis, Rainer R. Schoch, David Button   +5 more
wiley   +1 more source

Relative skull size evolution in Mesozoic archosauromorphs: potential drivers and morphological uniqueness of erythrosuchid archosauriforms

Palaeontology, Volume 65, Issue 3, May/June 2022., 2022
Abstract Little is known about the large‐scale evolutionary patterns of skull size relative to body size, and the possible drivers behind these patterns, in Archosauromorpha. For example, the large skulls of erythrosuchids, a group of non‐archosaurian archosauromorphs from the Early and Middle Triassic, and of theropod dinosaurs are regarded as ...
Jordan Bestwick, Pedro L. Godoy, Susannah C. R. Maidment, Martín D. Ezcurra, Mia Wroe, Thomas J. Raven, Joseph A. Bonsor, Richard J. Butler, Kenneth Angielczyk   +8 more
wiley   +1 more source