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
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A possible phytosaurian (Archosauria, Pseudosuchia) coprolite from the Late Trias-sic Fleming Fjord Group of Jameson Land, central East Greenland [PDF]
Bulletin of the Geological Society of Denmark, 2021 A large, well-preserved vertebrate coprolite was found in a lacustrine sediment in the Malmros Klint Formation of the Late Triassic Fleming Fjord Group in the Jameson Land Basin, central East Greenland. The size and internal and external morphology of the coprolite is consistent with that of crocodilian coprolites and one end of the coprolite exhibits ...
Milàn, Jesper +5 more
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A new rauisuchid (Archosauria, Pseudosuchia) from the Upper Triassic (Norian) of New Mexico increases the diversity and temporal range of the clade [PDF]
PeerJ, 2016 Rauisuchids are large (2–6 m in length), carnivorous, and quadrupedal pseudosuchian archosaurs closely related to crocodylomorphs. Though geographically widespread, fossils of this clade are relatively rare in Late Triassic assemblages. The middle Norian
Emily J. Lessner +5 more
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Evolution of posture in amniotes–Diving into the trabecular architecture of the femoral head
Journal of Evolutionary Biology, Volume 36, Issue 8, Page 1150-1165, August 2023., 2023 We use 3D microanatomical parameters measured at the femoral head to study femoral posture in amniotes. We show that these parameters are not good indicators of femoral posture. Methods of ancestral state reconstruction hold great promise for improving our understanding of the evolution of posture in amniotes.
Jordan Gônet +2 more
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Cranial anatomy and palaeoneurology of the archosaur Riojasuchus tenuisceps from the Los Colorados Formation, La Rioja, Argentina. [PDF]
, 2016 Riojasuchus tenuisceps Bonaparte 1967 is currently known from four specimens, includingtwo complete skulls, collected in the late 1960s from the upper levels of the Los ColoradosFormation (Late Triassic), La Rioja, Argentina.
Desojo, Julia Brenda, Von Baczko, Belen
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The evolution of bone ornamentation in Pseudosuchia: morphological constraints versus ecological adaptation [PDF]
Biological Journal of the Linnean Society, 2017 Although frequent in vertebrates (e.g. crocodylians, stem-tetrapods, turtles), the adaptive significance of bone ornamentation, that is the honeycomb-like pattern of pits and ridges that occur on the surface of dermal bones, remains poorly understood.
Clarac, F. +3 more
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Geological Society, London, Special Publications, 2013 Abstract Recent palaeohistological studies on paramedian osteoderms of aetosaurs revealed the presence of growth lines (lines of arrested growth or LAGs) and a minimal or nonexistent secondary remodelling in the bone matrix of these elements. This feature allows the age of individuals to be estimated through growth line count. In
Taborda, Jeremías Ramón Alejandro +2 more
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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
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Hindlimb biomechanics of Lagosuchus talampayensis (Archosauria, Dinosauriformes), with comments on skeletal morphology. [PDF]
J AnatThe study constructs a 3D whole‐body biomechanical model of the Late Triassic archosaurian reptile Lagosuchus talampayensis, which includes reconstructions of the hindlimb musculature. The process of constructing the model revealed that numerous limb bones curated with the main specimens are from other, as‐yet‐undetermined archosaurs.
Otero A, Bishop PJ, Hutchinson JR.
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Revista del Museo Argentino de Ciencias Naturales, 2022 In the present contribution we study a fragmentary specimen of Crocodylomorpha recovered from outcrops of the Los Colorados Formation (Late Triassic) of the Ischigualasto-Villa Uni n Basin. The material (PULR-V126) was deposited in the Museo de Ciencias Naturales of the Universidad Nacional de La Rioja, without any other data of origin or collector ...
Claudio A. Mamani +2 more
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