Redescription of Calyptosuchus (Stagonolepis) wellesi (Archosauria: Pseudosuchia: Aetosauria) from the Late Triassic of the Southwestern United States with a discussion of genera in vertebrate paleontology [PDF]
PeerJ, 2018 Calyptosuchus wellesi is a medium-sized desmatosuchian aetosaur common in Adamanian (early to middle Norian) age rocks from the Chinle Formation and Dockum Group of the Western United States. Known chiefly from osteoderms, this taxon has never been fully
William G. Parker
doaj +2 more sources
Hind limb osteology of Gracilisuchus stipanicicorum (Archosauria: Pseudosuchia)
Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 2012 ABSTRACTGracilisuchus stipanicicorum Romer, 1972, from the Middle-Late Triassic of the Ischigualasto–Villa Unión Basin of Argentina, is an extinct pseudosuchian archosaur on the stem to Crocodylomorpha. The pelvic girdle and hind limb anatomy of a referred specimen of Gracilisuchus stipanicicorum is described and compared with that from a broad range ...
Lecuona, Agustina, Desojo, Julia Brenda
openaire +2 more sources
Gnathovorax cabreirai: a new early dinosaur and the origin and initial radiation of predatory dinosaurs [PDF]
PeerJ, 2019 Predatory dinosaurs were an important ecological component of terrestrial Mesozoic ecosystems. Though theropod dinosaurs carried this role during the Jurassic and Cretaceous Periods (and probably the post-Carnian portion of the Triassic), it is difficult
Cristian Pacheco +5 more
doaj +2 more sources
Preliminary observations on the bone histology of the Middle Triassic pseudosuchian archosaur Batrachotomus kupferzellensis reveal fast growth with laminar fibrolamellar bone tissue [PDF]
, 2017 The bone tissue of femur, rib, and gastralia from three different individuals of the Middle Triassic pseudosuchian Batrachotomus kupferzellensis from southern Germany is studied.
Foth, Christian +2 more
core +1 more source
Paleohistology and lifestyle inferences of a dyrosaurid (Archosauria: Crocodylomorpha) from Paraíba Basin (northeastern Brazil). [PDF]
PLoS ONE, 2014 Among the few vertebrates that survived the mass extinction event documented at the Cretaceous-Paleocene boundary are dyrosaurid crocodylomorphs. Surprisingly, there is little information regarding the bone histology of dyrosaurids, despite their ...
Rafael César Lima Pedroso de Andrade +1 more
doaj +1 more source
Anais da Academia Brasileira de Ciências, 2016 Many authors have discussed the subnarial foramen in Archosauriformes. Here presence among Archosauriformes, shape, and position of this structure is reported and its phylogenetic importance is investigated.
LÚCIO ROBERTO-DA-SILVA +4 more
doaj +1 more source
The osteoderm microstructure in doswelliids and proterochampsids and its implications for palaeobiology of stem archosaurs [PDF]
Acta Palaeontologica Polonica, 2017 Osteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei
Denis A. Ponce +3 more
doaj +1 more source
New Information on the Keratinous Beak of Confuciusornis (Aves: Pygostylia) From Two New Specimens
Frontiers in Earth Science, 2020 The keratinous beak is inferred to have evolved multiple times in the Archosauria and in Aves. Unfortunately, this feature rarely preserves in the fossil record.
Xiaoting Zheng +11 more
doaj +1 more source
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 +6 more
doaj +1 more source
Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs
The Anatomical Record, EarlyView.Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille +6 more
wiley +1 more source