Genus: Plioplatecarpus DOLLO, 1882
Etymology:

Species: primaevus RUSSEL, 1967 (DUNKLE, in CRANDELL, 1958)
Etymology:

Referred material:

BELL, SHELDON, LAMB & MARTIN, 1996

Locality: South Dakota.

Horizon: DeGrey Member, Pierre Shale.

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Fragmentary skeleton with 2 fragmentary skeletons of babies in its body cavity.

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Sp

WOODS, 2004

Locality: Johnson County, Wyoming.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

Tate Museum: Adult skeleton.

Note: Found with small embryonic teeth.