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Pistosauria

Reptilia - Sauropterygia

Taxonomy
Pistosauria was named by Baur (1890).

It was reranked as the suborder Pistosauria by Kuhn (1946); it was reranked as the superfamily Pistosauria by Rieppel (2000); it was reranked as the unranked clade Pistosauria by O'Keefe (2001).

It was assigned to Sauropterygia by Kuhn (1946); to Pistosauroidea by Rieppel (2000); to Sauropterygia by O'Keefe (2001); and to Sauropterygia by Rieppel et al. (2002).

Synonymy list
YearName and author
1890Pistosauria Baur
1946Pistosauria Kuhn p. 59
2000Pistosauria Rieppel
2001Pistosauria O'Keefe p. 19
2002Pistosauria Rieppel et al. p. 577

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
RankNameAuthor
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
orderSauropterygia
Pistosauria(Baur 1890)
Pistosauria(Baur 1890)

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.

Diagnosis
ReferenceDiagnosis
O. Rieppel et al. 2002Nasals absent; pineal foramen displaced anteriorly; jugal entering upper temporal arch behind maxilla; supraoccipital U-shaped; squamosals meeting behind parietal; squamosal forming box-like suspensorium; ventrally directed basioccipital tubera in complex articulation with pterygoids; anteromedial corner of upper temporal fossa closed off from orbit; braincase recessed deeply below parietal skull table; subcentral foramina present; ectepicondylar groove absent.