Genus: Triceratops MARSH, 1889
Etymology: Greek, treis, “three” and Greek, ceratops, “horn face”: “Three horn face”.

Species: horridus (MARSH, 1889) MARSH, 1889
Etymology:

Referred material:

HAPP & MORROW, 1997, HAPP & MORROW, 2000

Locality: Near Jordan, Montana.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

SUP9713: Skull and fragmentary skeleton of a juvenile.
Note: Skin impressions and teeth marks from crocodilians and small theropods.
Note: HAPP & MORROW, 2000, state that there is soft tissue impressions in the skull.


LARSON, LARSON, OTT & BAKKER, 2007

Locality: Zerbst Ranch, Niobrara County, Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

BHI 6273: Fragmentary skull and skeleton.
Note: Has skin impressions and is the best 'mummified' ceratopsian specimen.