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Elasmosaurus platyurus

Reptilia - Sauropterygia - Elasmosauridae

Taxonomy
Elasmosaurus platyurus was named by Cope (1868) [not ANSP 18001]. Its type specimen is ANSP 10081, a skeleton (a skeleton lacking only the skull and paddles, the girdles have since been lost), and it is a 3D body fossil. Its type locality is Elasmosaurus type, McAllaster Butte, which is in a Campanian/Campanian marine horizon in the Pierre Shale Formation of Kansas. It is the type species of Elasmosaurus.

It was recombined as Cimoliosaurus platyurus by Lydekker (1889).

Sister species lacking formal opinion data

View classification of included taxa

Synonyms
Synonymy list
YearName and author
1868Discosaurus carinatus Cope
1868Elasmosaurus platyurus Cope p. 264
1869Elasmosaurus platyurus Cope p. 48
1889Cimoliosaurus platyurus Lydekker p. 181
1903Elasmosaurus platyurus Williston p. 8
1906Elasmosaurus platyurus Williston p. 225
1943Elasmosaurus platyurus Welles pp. 208-209
1949Elasmosaurus platyurus Welles
1962Elasmosaurus platyurus Welles pp. 3 & 64 fig. 14
1999Elasmosaurus platyurus Carpenter p. 150
1999Elasmosaurus platyurus Storrs p. 3
2005Elasmosaurus platyurus Sachs

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
orderSauropterygia
Pistosauria(Baur 1890)
Plesiosauria(de Blainville 1835)
superfamilyPlesiosauroideaWelles 1943
Cryptoclidia
Xenopsaria
familyElasmosauridaeCope 1869
subfamilyStyxosaurinae
genusElasmosaurus
speciesplatyurus

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
No diagnoses are available