Mammalia - Primates - Omomyidae

Synonyms: Hemiacodon pygmaeus Wortman 1904, Shoshonius laurae Simpson 1959, Washakius laurae Simpson 1959

Belongs to Washakius according to K. M. Muldoon and G. F. Gunnell 2002

Sister taxa: Washakius izetti, Washakius woodringi

Type specimens:

• Washakius insignis: A.N.S. No. 10332, a mandible (portion of right ramus of mandible with M3 and M3).
• Hemiacodon pygmaeus:
• Shoshonius laurae: AMNH 55672. Its type locality is Morrow Creek Locality 10, which is in a Bridgerian terrestrial horizon in the Green River Formation of Wyoming.

Ecology: arboreal insectivore

Average measurements (in mm): M1 2.30 x 2.98, M2 2.16 x 3.41, M3 2.00 x 3.08, m1 2.37 x 1.78, m2 2.49 x 1.96, m3 3.25 x 1.93