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Gronausaurus

Reptilia - Sauropterygia - Elasmosauridae

Taxonomy

Synonymy list
YearName and author
2013Gronausaurus Benson et al.
2013Gronausaurus Hampe figs. 3-8

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

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. Hampe 2013A leptocleidid plesiosaur with the following characters: lateral portions of the parasphenoid ending directly anterior to the basioccipital tubers; elongated cochlear facet on the dorsal side of the braincase; gently procoelous cervical centra; presence of a subdiapophyseal fossa below the transverse processes at the 2nd to 4th pectoral and anterior dorsal vertebrae; (number of pectoral vertebrae probably 4); humeri with facet for supernumerary postaxial epipodial elements; epipodials longer than wide.