Reptilia - Ichthyosauria - Ophthalmosauridae

Alternative combination: Ophthalmosaurus gorodischensis

Full reference: V. M. Efimov. 1999. A new family of Ichthyosaurs, the Undorosauridae fam. nov. from the Volgian stage of the European part of Russia. Paleontological Journal 33(2):174-181

Belongs to Undorosaurus according to M. W. Maisch 2010

Sister taxa: none

Type specimen: UPM No. EP-II-20 (527), a partial skeleton. Its type locality is Volga region at Gorodische near Ul'yanovsk E. nikitini zone, which is in a Tithonian marine horizon in the Russian Federation.