Genus: Brachybrachium WILLISTON, 1904
Etymology: Greek, brakhys, “snout” and Greek, brakhion, “arm”: Short arm.

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.