Agnosphities

Agnosphities
Temporal occurrence
	Norium to Rhaetium ( Upper Triassic )
	228 to 199.6 million years
Locations
	Cromhall Quarry of Avon, England ;
Systematics
	Sauropsida
	Archosauria
	Ornithodira
	Dinosaur (dinosauria)
	Lizard dinosaur (Saurischia)
	Agnosphities
Scientific name
	Agnosphities
	Fraser , Padian , Walkden & Davis , 2002

Agnosphitys cromhallensis is a two-legged, carnivorous archosaur from the late Triassic of England . In the official description, the descriptors represent the thesis that agnosphities , the Herrerasauridae and Eoraptor are, contrary to general opinion, not dinosaurs , but only a subgroup. Today, however, they are classified within the Saurischia dinosaur group.

The genus name is made up of the Greek words at = not, gnosis = knowledge, phylon = race, the epithet is named after its place of discovery, the Cromhall Quarry of Avon, England.

The holotype material (VMNH 1745) forms a left ilium ( iliac bone ) discovered in 1990 in the Cromhall Quarry . Other material from the same site was also ascribed to this animal, including the left maxilla (upper jaw), several astragalus ( talus ), a humerus (humerus) and teeth. The chronological classification is still uncertain, the finds probably come from the Norium and the Rhaetian .

Agnosphitys was no longer than ten feet.

Individual evidence

↑ Nicholas C. Fraser, Kevin Padian , Gordon M. Walkden, ALM Davis: Basal dinosauriform remains from Britain and the diagnosis of the Dinosauria. In: Palaeontology. Vol. 45, No. 1, 2002, ISSN 0031-0239 , pp. 79-95, doi : 10.1111 / 1475-4983.00228 .

Web links

Commons : Agnosphitys - collection of images, videos and audio files

The Paleobiology Database Agnosphitys

[1] Nicholas C. Fraser, Kevin Padian , Gordon M. Walkden, ALM Davis: Basal dinosauriform remains from Britain and the diagnosis of the Dinosauria. In: Palaeontology. Vol. 45, No. 1, 2002, ISSN 0031-0239 , pp. 79-95, doi : 10.1111 / 1475-4983.00228 .