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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.
Older definitions of the group Archosauria rely on shared morphological characteristics, such as an antorbital fenestra in the skull, serrated teeth, and an upright stance. Some extinct reptiles, such as proterosuchids and euparkeriids , also possessed these features yet originated prior to the split between the crocodilian and bird lineages.
Pages in category "Ornithosuchids" The following 5 pages are in this category, out of 5 total. This list may not reflect recent changes. ...
Ornithischia (/ ˌ ɔːr n ə ˈ θ ɪ s k i. ə /) is an extinct clade of mainly herbivorous dinosaurs characterized by a pelvic structure superficially similar to that of birds. [6] The name Ornithischia, or "bird-hipped", reflects this similarity and is derived from the Greek stem ornith-(ὀρνιθ-), meaning "bird", and ischion (ἴσχιον), [a] meaning "hip". [7]
As Suchia is a clade, it is defined by relationships rather than shared characteristics between its members. However, several traits are found in most suchians but not in ornithosuchids, phytosaurs, or other archosaurs and archosaur relatives, so they can be used to help determine whether a reptile is a suchian or not.
The role of some species of birds as pests has been well known, particularly in agriculture. Granivorous birds such as the queleas in Africa are among the most numerous birds in the world, and foraging flocks can cause devastation. [107] [108] Many insectivorous birds are also noted as beneficial in agriculture.
Cimoliornis diomedeus, Cretornis hlavatschi, and Palaeornis clifti, originally misidentified as birds, were once referred to Ornithocheirus in the past, but recent papers have found them to be distinct; Cimoliornis may be closer to azhdarchoidea, [22] Cretornis is a valid genus of azhdarchid, [23] [24] and Palaeornis was shown to be a ...