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Ornithosuchidae is an extinct family of pseudosuchian archosaurs (distant relatives of modern crocodilians) from the Triassic period. Ornithosuchids were quadrupedal and facultatively bipedal (e.g. like chimpanzees), meaning that they had the ability to walk on two legs for short periods of time.
A single species of Ornithosuchus is recognized, O. woodwardi; O. taylori is a synonym. [3]"Dasygnathus" longidens was in 1877 created by Thomas Huxley for a right maxilla from the Lossiemouth Sandstone found in 1857.
Pages in category "Ornithosuchids" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. ...
Venaticosuchus is a genus of pseudosuchian archosaurs from the family Ornithosuchidae.Known from a single species, Venaticosuchus rusconii, this genus is described based on an incomplete skull and jaw (as well as a lost partial forelimb and osteoderms) collected from the Late Triassic Ischigualasto Formation in the Ischigualasto-Villa Unión Basin in northwestern Argentina, which was deposited ...
Like other ornithosuchids, the snout of Dynamosuchus had a hooked premaxilla with three teeth, followed by a gap (a diastema) and a deep maxilla with six to eight teeth. The maxilla was similar to that of Ornithosuchus due to possessing pitting on its outer surface (absent in Venaticosuchus and Riojasuchus ) and a not particularly deep ...
Ornithosuchids were thought to be ancestral to dinosaurs at this time. In 1979, A.R.I. Cruickshank identified the basal split and thought that the crurotarsan ankle developed independently in these two groups, but in opposite ways.
Ornithosuchids were once considered bird-line archosaurs (as implied by their name, which means "bird crocodiles" in Greek), but were later recognized as crocodile-line archosaurs. This reclassification may have inspired Sereno's Crurotarsi, a node-based clade defined by the inclusion of ornithosuchids and other early archosaurs.
The lateral tuber is larger and more concave, like that of ornithosuchids. Apart from these tubera, the proximal part of the tibia is mostly convex. However, a distinct notch is present behind the lateral tuber. This is probably an attachment point for flexor tibialis internus muscle. The distal part is smooth and oval-shaped in cross section ...