Species: brevipes WILLISTON, 1904
Etymology: Latin, brevis, "short" and Latin, pes, "foot."
Holotype:
Locality: The vicinity of the Little Popo Agie River, Wyoming.
Horizon: Popo Agie Formation.
Biostratigraphy:
Age: Otischalkian, Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Humerus.