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Cimoliasaurus

Reptilia - Plesiosauria - Elasmosauridae

Taxonomy
Cimoliasaurus was named by Leidy (1851) [Sepkoski's age data: K Apti K Maes-u Sepkoski's reference number: 2]. Its type is Cimoliosaurus magnus.

It was corrected as Cimoliosaurus by Seeley (1892), White (1940), Delair (1960); it was considered a nomen dubium by Welles (1943).

It was assigned to Streptosauria by Cope (1869); to Plesiosauridae by Lydekker (1889); to Brachaucheniidae by Hay (1930); to Cimoliosauridae by Delair (1960); to Cimoliasauridae by Persson (1963); to Plesiosauria by Williston (1903), Williston (1906), Sepkoski (2002); and to Elasmosauridae by Cope (1871), Cope (1875), Seeley (1892), Hay (1902), Wegner (1914), White (1940), O'Keefe and Street (2009).