| Named By: | Joseph Jiedy in 1851 |
| Time Period: | Early to Late Cretaceous |
| Location: | Europe, North America and Australasia. *Possibly not an accurate representation of the genus |
| Size: | Uncertain sue to the assemblage of remains and partial incomplete preservation of many specimens |
| Diet: | Probably piscivorous |
| Fossil(s): | Multiple partial and incomplete remains. Possibly not all indicative of the genus |
| Classification: | | Chordata | Reptilia | Sauropterygia | Pleisoauria | |
| Also known as: | | Cimoliasaurus brevior | Cimoliasaurus maccoyi | Discosaurus | Oligosimus | Piptomerus | |
Cimoliasaurus was a plesiosaur that lived during the Late Cretaceous (Maastrichtian) of New Jersey. It grew from 13 to 25 ft long.