Name: Undorosaurus.
Phonetic: Un-dor-o-sor-us.
Named By: V.‭ ‬M.‭ ‬Efimov‭ ‬-‭ ‬1999.
Synonyms: Ophthalmosaurus gorodischensis.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Ichthyosauria,‭ ‬Ophthalmosauridae,‭ ‬Platypterygiinae.
Species: U.‭ ‬gorodischensis‭ (‬type‭).
Diet: Carnivore/Piscivore.
Size: Unavailable.
Known locations: Russia.
Time period: Tithonian of the Jurassic.
Fossil representation: Partial skull and post cranial skeletal remains.

       Undorosaurus is a genus of ichthyosaur which lived in the late Jurassic seas of what is now Russia.‭ ‬For a time Undorosaurus was speculated to be synonymous with Ophthalmosaurus,‭ ‬but today Undorosaurus is regarded by all to be a distinct genus,‭ ‬though one that is related to Ophthalmosaurus.‭

Further reading
-‭ ‬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.‭ ‬-‭ ‬V.‭ ‬M.‭ ‬Efimov‭ ‬-‭ ‬1999.
-‭ ‬On a new ichthyosaur of the genus Undurosaurus.‭ ‬-‭ ‬Proceedings of the Zoological Institute RAS‭ ‬318‭(‬5‭)‬:187-196.‭ ‬-‭ ‬M.‭ ‬S.‭ ‬Arkhangelsky‭ & ‬N.‭ ‬G.‭ ‬Zverkov‭ ‬-‭ ‬2014.


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