V. M. Efimov. 1998. An ichthyosaur, Otschevia pseudoscythica gen. et. sp. nov. from the Upper Jurassic strata of the Ulyanovsk region (Volga region). Paleontological Journal 2:82-86
Bibliographie (1)
G. W. Storrs, M. S. Arkhangel'skii, and V. M. Efimov. 2000. Mesozoic marine reptiles of Russia and other former Soviet republics. The age of dinosaurs in Russia and Mongolia