Mammalia - Carnivora - Canidae

Synonym: Mesocyon baileyi Stock 1933

Belongs to Mesocyon according to X. Wang 1994

Sister taxa: Mesocyon coryphaeus, Mesocyon temnodon

Type specimens:

• Mesocyon brachyops: UCMP 1692, a partial skeleton (almost complete cranium and partial pelvis)
• Mesocyon baileyi: LACM 471, a skull (skull and mandible).

Ecology: ground dwelling carnivore-omnivore

Average measurements (in mm): P4 13.8 x 8.9, M1 9.99 x 11.80, M2 5.37 x 6.90, p4 9.55 x 4.77, m1 14.6 x 6.4, m2 7.10 x 4.88