An enigmatic new archosauriform from the Carnian– Norian, Upper Triassic, Ischigualasto Formation of northwestern Argentina [PDF]
Acta Palaeontologica Polonica, 2021 In this contribution we introduce a new Late Triassic archosaur, Incertovenator longicollum gen. et sp. nov., with an unusual combination of character states that are present in certain early avemetatarsalian and pseudosuchian archosaur clades.
Imanol Yáñez +4 more
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Osteohistological signal from the smallest known phytosaur femur reveals slow growth and new insights into the evolution of growth in Archosauria [PDF]
Journal of AnatomyDaniel E Barta +2 more
exaly +2 more sources
Silesaurid ( Archosauria: Dinosauriformes ) remains from the base of the Dockum Group ( Late Triassic: Otischalkian ) of Texas provide new insights to the North American record of dinosauriforms [PDF]
Anatomical RecordSterling J Nesbitt, Frederick Tolchard
exaly +2 more sources
The first ornithosuchid from Brazil and its macroevolutionary and phylogenetic implications for Late Triassic faunas in Gondwana [PDF]
Acta Palaeontologica Polonica, 2020 rnithosuchidae is one of the most enigmatic clades of Triassic pseudosuchians. The group is composed by three carnivorous species that were excavated from Upper Triassic beds of Scotland and Argentina.
Rodrigo T. Müller +3 more
doaj +1 more source
The craniomandibular anatomy of the early archosauriform Euparkeria capensis and the dawn of the archosaur skull [PDF]
Royal Society Open Science, 2020 Archosauria (birds, crocodilians and their extinct relatives) form a major part of terrestrial ecosystems today, with over 10 000 living species, and came to dominate the land for most of the Mesozoic (over 150 Myr) after radiating following the Permian ...
Roland B. Sookias +7 more
doaj +1 more source
Vertebral morphometrics and lung structure in non-avian dinosaurs [PDF]
Royal Society Open Science, 2018 The lung-air sac system of modern birds is unique among vertebrates. However, debate surrounds whether an avian-style lung is restricted to birds or first appeared in their dinosaurian ancestors, as common osteological correlates for the respiratory ...
Robert J. Brocklehurst +2 more
doaj +1 more source
A new archosauriform (Reptilia: Diapsida) from the Manda beds (Middle Triassic) of southwestern Tanzania. [PDF]
PLoS ONE, 2013 BackgroundArchosauria and their closest relatives, the non-archosaurian archosauriforms, diversified in the Early and Middle Triassic, soon after the end-Permian extinction. This diversification is poorly documented in most Lower and Middle Triassic rock
Sterling J Nesbitt +2 more
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Braincase anatomy of the Paleocene crocodyliform Rhabdognathus revealed through high resolution computed tomography [PDF]
PeerJ, 2021 Dyrosaurids were highly specialized, largely marine, relatives of living crocodylians, and one of the few archosaur lineages to survive the K-Pg extinction.
Arthur Erb, Alan H. Turner
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Palaeohistology and external microanatomy of rauisuchian osteoderms (Archosauria: Pseudosuchia) [PDF]
Palaeontology, 2011 Abstract: The presence of postcranial dermal armour is plesiomorphic for Archosauria. Here, we survey the external microanatomy and histology of postcranial osteoderms (i.e. dorsal paramedian and caudal osteoderms) of rauisuchians, a widely distributed assemblage of extinct predatory pseudosuchians from the Triassic.
Scheyer TM, Desojo JB
openaire +4 more sources
Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae). [PDF]
J AnatA three‐dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipanicicorum. The study finds that, potentially like the ancestral archosaur, this taxon was probably quadrupedal, plantigrade and neither strongly sprawling ...
Lecuona A +3 more
europepmc +2 more sources