Reptilia - Sauropterygia - Elasmosauridae

Full reference: J. Wiffen and W. L. Moisley. 1986. Late Cretaceous reptiles (families Elasmosauridae and Pliosauridae) from the Mangahouanga Stream, North Island, New Zealand. New Zealand Journal of Geology and Geophysics 29:205-252

Parent taxon: Elasmosauridae according to O. Mateus et al. 2012

Sister taxa: Albertonectes, Alexeyisaurus, Alzadasaurinae, Aristonectinae, Callawayasaurus, Callowayosaurus, Cimoliasaurus, Elasmosaurinae, Elasmosaurus, Eromangasaurus, Hydralmosaurus, Hydrotherosaurus, Leurospondylus, Libonectes, Mauisaurus, Scanisaurus, Stereosaurus, Styxosaurus, Terminonatator, Thalassiosaurus, Thalassomedon, Thalassonomosaurus, Wapuskanectes, Zarafasaura, Morturneria

Subtaxa: Tuarangisaurus cabazai, Tuarangisaurus keyesi

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Type: Tuarangisaurus keyesi

Ecology: aquatic carnivore