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Hydralmosaurus serpentinus

Reptilia - Plesiosauria - Elasmosauridae

Taxonomy
Elasmosaurus serpentinus was named by Cope (1877). Its type specimen is AMNH 1495, a partial skeleton (the entire vertebral column, with the exception of a few anterior cervical and distal caudal vertebrae; the pectoral arch, with the clavicles and a good deal br), and it is a 3D body fossil. Its type locality is Bluff on southwest side of Missouri River, which is in a Campanian/Campanian marine shale in the Pierre Shale Formation of Nebraska.

It was considered a nomen dubium by Otero (2016); it was recombined as Hydralmosaurus serpentinus by Welles (1940), Welles (1943), Welles (1949), Welles (1962), Storrs (1999), Carpenter (1999), Madzia et al. (2018).

Synonymy list
YearName and author
1877Elasmosaurus serpentinus Cope p. 578
1902Elasmosaurus serpentinus Hay p. 458
1903Elasmosaurus serpentinus Williston p. 9
1906Elasmosaurus serpentinus Williston p. 228
1930Elasmosaurus serpentinus Hay p. 118
1939Elasmosaurus serpentinus Riggs
1940Hydralmosaurus serpentinus Welles p. 51
1943Hydralmosaurus serpentinus Welles p. 185
1949Hydralmosaurus serpentinus Welles
1962Hydralmosaurus serpentinus Welles pp. 3 & 68
1999Hydralmosaurus serpentinus Carpenter p. 153
1999Hydralmosaurus serpentinus Storrs p. 5
2018Hydralmosaurus serpentinus Madzia et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
RankNameAuthor
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
suborderSauropterygia
orderPlesiosauriade Blainville 1835
superfamilyPlesiosauroideaWelles 1943
familyElasmosauridaeCope 1869
—Euelasmosaurida
—Elasmosaurinae
genusHydralmosaurus
speciesserpentinus()

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatiteo
Environment: marineo
Locomotion: actively mobileo
Life habit: aquatico
Depth habitat: surfaceo
Diet: carnivoreo
Reproduction: viviparouso
Created: 2009-07-20 06:05:48
Modified: 2011-08-12 01:58:15
Source: o = order
Reference: Kiessling 2004
Collections
No collection or age range data are available