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Elasmosaurus sternbergi Williston 1906 (elasmosaur)

Reptilia - Sauropterygia - Elasmosauridae

PaleoDB taxon number: 113857

Full reference: S. W. Williston. 1906. North American plesiosaurs: Elasmosaurus, Cimoliasaurus, and Polycotylus. The American Journal of Science, series 4 21:221-236

Belongs to Elasmosauridae according to G. W. Storrs 1999

Sister taxa: Alexeyisaurus, Alzadasaurinae, Alzadasaurus kansasensis, Alzadasaurus tropicus, Aristonectinae, Callawayasaurus, Callowayosaurus, Cardiocorax, Cimoliasaurus, Cimoliasaurus andium, Cimoliasaurus cantabrigiensis, Cimoliasaurus caudalis, Elasmosaurinae, Elasmosaurus amalitskii, Elasmosaurus kurskensis, Elasmosaurus orskensis, Elasmosaurus serdobensis, Eromangasaurus, Gronausaurus, Hydrotherosaurus, Kawanectes, Lagenanectes, Leivanectes, Leurospondylus, Libonectes, Mauisaurus, Mauisaurus gardneri, Plesiosaurus constrictus, Plesiosaurus crassicostatus, Plesiosaurus gulo, Plesiosaurus gurgitis, Plesiosaurus helmersenii, Plesiosaurus holmesii, Plesiosaurus hoodii, Plesiosaurus mackayii, Plesiosaurus mauritanicus, Plesiosaurus sutherlandi, Pliosaurus gigas, Pliosaurus macrospondylus, Scanisaurus, Stereosaurus, Styxosaurinae, Thalassiosaurus, Thalassiosaurus ischiadicus, Thalassomedon, Thalassonomosaurus, Thalassonomosaurus nobilis, Tuarangisaurus, Vegasaurus, Wapuskanectes, Weddellonectia, Woolungasaurus, Woolungasaurus glendowerensis, Zarafasaura, Brimosaurus, Morturneria

Type specimen: KUVP 1312, a set of vertebrae (a few vertebrae and fragments). Its type locality is Elasmosaurus sternbergi type locality, Gove County, which is in a Santonian marine chalk in the Niobrara Formation of Kansas.

Ecology: aquatic carnivore