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Agnosphitys cromhallensis

Reptilia - Guaibasauridae

Taxonomy
Agnosphitys cromhallensis was named by Fraser et al. (2002). Its type specimen is VMNH 1745 and is not a trace fossil. Its type locality is Cromhall Quarry (1990 fill), which is in a Carnian fissure fill horizon in the United Kingdom.

It was considered a nomen dubium by Langer (2004).

Synonymy list
YearName and author
2002Agnosphitys cromhallensis Fraser et al. p. 80
2007Agnosphitys cromhallensis Naish and Martill p. 496
2010Agnosphitys cromhallensis Langer et al. p. 59
2012Agnosphitys cromhallensis van den Berg et al. p. 641

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Eusaurischia
Sauropodomorpha(Huene 1932)
familyGuaibasauridae
genusAgnosphitys
speciescromhallensis

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Agnosphitys cromhallensis Fraser et al. 2002
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Diagnosis
ReferenceDiagnosis
N. C. Fraser et al. 2002Dinosauromorph with a well-de®ned brevis fossa on the ilium; semi-perforate acetabulum; 'kidney-shaped' antitrochanter; well-developed posterior portion of the iliac blade; two sacral vertebrae; subrectangular deltopectoral crest that is 33 per cent of the length of the humerus; astragalus with a distinct ascending process and a prominent depression immediately posterior to the ascending process; in dorsal aspect an acute anteromedial corner on the astragalus.