Genus: Pantosaurus MARSH, 1895

Species: striatus (MARSH, 1885) MARSH, 1895

Referred material:

O'KEEFE, STREET, CAVIGELLI, SOCHA & O'KEEFE, 2009

Locality: North of the town of Greybull, Bighorn County, Wyoming.

Horizon: Upper Member, Sundance Formation.

Biostratigraphy:

Age: Oxfordian Stage, Lower Malm Epoch, Late Jurassic.

Material:

USNM 536965: 4 dorsals, 3 sacrals, 8 caudals, complete pelvis, numerous rigs and gastroliths.

Note: Has 13 complete rings and fragments of 4 more vertebrae of an embryo of the ichthyosaur Ompthalmosaurus natans.