Paleontological Journal

, Volume 45, Issue 6, pp 648–660

A new plesiosaur of the family aristonectidae from the early cretaceous of the center of the Russian platform


DOI: 10.1134/S0031030111060037

Cite this article as:
Berezin, A.Y. Paleontol. J. (2011) 45: 648. doi:10.1134/S0031030111060037


A new plesiosaur, Abyssosaurus nataliae gen. et sp. nov. from the Upper Hauterivian Substage (Lower Cretaceous) of Chuvashia, is described based on a postcranial skeleton. The new taxon is assigned to the family Aristonectidae where it presumably occupies an intermediate position between Late Jurassic Tatenectes and Kimmerosaurus and Late Cretaceous Aristonectes and Kaiwhekea. This is the first reliable record of this family in Russia.


Aristonectidaeplesiosaurspostcranial skeletonnew taxaEarly CretaceousChuvashiaRussia

Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  1. 1.Chuvash Natural Historical Society “Terra incognita,”CheboksaryChuvashia, Russia