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Plesiosaurus

Reptilia - Sauropterygia

Synonyms
Synonymy list
YearName and author
1821Plesiosaurus de la Beche and Conybeare
1822Plesiosaurus Parkinson p. 300
1826Plesiosaurus Fitzinger p. 9
1840Plesiosaurus Owen p. 49–50
1845Plesiosaurus Meyer p. 281
1849Plesiosaurus d'Orbigny p. 210
1861Plesiosaurus Owen p. 243
1864Plesiosaurus Owen p. 1
1865Plesiosaurus Owen pp. 1-11
1871Plesiosaurus Cope p. 235
1874Plesiosaurus Hector p. 337
1875Plesiosaurus Cope p. 15
1876Plesiosaurus Tate and Blake p. 246
1889Plesiosaurus Lydekker p. 251
1892Plesiosaurus Seeley p. 151
1903Plesiosaurus Williston p. 7
1910Plesiosaurus mexicanus Wieland p. 359 fig. pl.52
1940Plesiosaurus White p. 461
1960Plesiosaurus Delair pp. 53-54
1963Plesiosaurus Persson p. 8
1966Plesiosaurus Kuhn p. 117
1981Plesiosaurus Brown p. 340
1988Plesiosaurus Carroll
1997Plesiosaurus Storrs p. 149
2001Plesiosaurus O'Keefe p. 19 fig. 20
2002Plesiosaurus Gasparini et al.
2002Plesiosaurus Sepkoski, Jr.
2010Plesiosaurus Ketchum and Benson p. 15
2012Plesiosaurus Benson et al. fig. 4
2014Plesiosaurus Benson and Druckenmiller figs. 2-3

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
RankNameAuthor
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
orderSauropterygia
Pistosauria(Baur 1890)
Plesiosauria(de Blainville 1835)
superfamilyPlesiosauroideaWelles 1943
genusPlesiosaurusde la Beche and Conybeare 1821

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
J. Hector 1874"Centrum of dorsal vertebrae short as compared with its width, which is greater than its height; flat, or only slightly concave at goth ends. Humerus prismatic, with a round proximal surface; distal end expanded and flat."
H. G. Seeley 1892"in which the carpus is weakly ossified"