Species: howardinus VAUGHN, 1972
Etymology:

Holotype: UCLA VP 1743

Locality: In the valley of Arkansas River, NW 1/4, NE 1/4, SW 1/4, Sec. 22, T49N, R10E, near the town of Howard, Fremont County, Central Colorado.

Horizon: Sangre de Cristo Formation.

Biostratigraphy:

Age: Probably Missourian, Lower Stephanian, upper Silesian Stage, Kasimovian Epoch? Late Pennsylvanian (Late Carboniferous).

Material: Fragmentary skull and fragmentary skeleton.

Referred specimen.

UCLA VP 1744: A partial arctulated series of 12 vertebrae with haemal arches.