Genus: Baseodon LEIDY, 1865 (nomen dubium)
Etymology:

Species: reversus LEIDY, 1865 (nomen dubium)
Etymology:
= Mosasaurus reversus (LEIDY, 1865) RUSSELL, 1967 (nomen dubium)

Holotype:

Locality: Freehold, Monmouth County, New Jersey.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material: 2 pterygoid teeth.
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