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Pareiasauria

Reptilia -

Taxonomy
Pareiasauria was named by Seeley (1888) [Whether this taxon is extinct or not depends on exlusion or inclusion of turtles, respectively.]. It is not extant. It was considered monophyletic by Lee (1995) and Laurin and Reisz (1995).

It was synonymized subjectively with Cotylosauria by Osborn (1904); it was reranked as the order Pareiasauria by Huene (1954); it was reranked as the infraorder Pareiasauria by Haughton and Brink (1954); it was reranked as the unranked clade Pareiasauria by Lee (1995) and Laurin and Reisz (1995).

It was assigned to Anomodontia by Seeley (1888); to Theromorpha by Zittel (1890); to Therosuchia by Seeley (1895); to Cotylosauria by Case (1911); to Cotylosauria by Broom (1913); to Diadecta by Olson (1947); to Diadectimorpha by Haughton and Brink (1954); to Reptiliomorphoidea by Huene (1954); to Anapsida by Olson (1966); to Parareptilia by Olson (1962) and Gauthier et al. (1988); to Amniota by Gauthier et al. (1989); to Procolophonia by Laurin and Reisz (1995); to Pareiasauroidea by Lee (1995); and to Reptilia by Lee (2000).

Synonyms
Synonymy list
YearName and author
1876Pareiasaurus bombidens Owen
1888Pareiasauria Seeley p. 106
1890Pareiosauria Zittel p. 449
1892Pareiasaurus russouwi Seeley
1895Pareiasauria Seeley
1908Pareiasaurus steenkampensis Seeley
1911Pareiasauria Case p. 9
1913Pareiasauria Broom
1913Pareiasaurus acutirostris Broom
1913Pareiasaurus bombidens Broom
1913Pareiasaurus russouwi Broom
1924Pareiasaurus strubeni Broom
1929Koalemasaurus Haughton and Boonstra
1929Koalemasaurus acutirostris Haughton and Boonstra
1929Nochelesaurus strubeni Haughton and Boonstra p. 83
1947Pareiasauria Olson pp. 44, 45
1954Pareiasauria Haughton and Brink p. 3
1954Pareiasauria Huene p. 21
1962Pareiasauria Olson
1966Pareiasauria Olson p. 301
1988Pareiasauria Gauthier et al. p. 139 fig. 4.4
1989Pareiasauria Gauthier et al. p. 340
1995Pareiasauria Laurin and Reisz p. 172
1995Pareiasauria Lee pp. 508, 515 fig. 22
2000Pareiasauria Lee p. 71

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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
subclassParareptilia
Procolophonomorpha()
Procolophonia()
Hallucicrania
superfamilyPareiasauroideaNopsca 1928
Pareiasauria()
Pareiasauria()

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
H. G. Seeley 1895Temporal vacuities of the skull roofed over as in Chelone; a large single (concave) occipital condyle; sphenoidal region short; transverse palatine processes directed out and forward. Teeth conical or with compressed cuspidate crowns, not divided into incisors, canines and molares. Ribs with the heads deep and occasionally divided.