Mammalia - Allotheria - Cimolomyidae

Alternative combination: Dipriodon robustus

Synonyms: Dipriodon lunatus Marsh 1889, Halodon sculptus Marsh 1889, Meniscoessus borealis Simpson 1927, Meniscoessus greeni Wilson 1987, Oracodon anceps Marsh 1889, Oracodon conulus Marsh 1892, Selenacodon fragilis Marsh 1889, Tripriodon coelatus Marsh 1889

Full reference: O. C. Marsh. 1889. Discovery of Cretaceous Mammalia. American Journal of Science 38:81-92

Belongs to Meniscoessus according to J. D. Archibald 1982

Sister taxa: Meniscoessus collomensis, Meniscoessus conquistus, Meniscoessus ferox, Meniscoessus intermedius, Meniscoessus major, Meniscoessus seminoensis

Type specimens:

• Meniscoessus robustus: YPM 11234, a tooth (right M2). Its type locality is Lull 2 Quarry, which is in a Maastrichtian terrestrial sandstone in the Lance Formation of Wyoming.
• Dipriodon lunatus: YPM 11825, a tooth (M1).
• Halodon sculptus: YPM 11810, a tooth (P4).
• Meniscoessus borealis: AMNH 14411, a tooth (isolated second left upper molar). Its type locality is Crooked Creek, which is in a Maastrichtian terrestrial horizon in the Hell Creek Formation of Montana.
• Meniscoessus greeni:
• Oracodon anceps: YPM 11862, a tooth (last upper premolar).
• Oracodon conulus: USNM 2141, a tooth (last upper premolar).
• Selenacodon fragilis: YPM 11897, a tooth (partial M1).
• Tripriodon coelatus: YPM 11853, a tooth (M2).

Ecology: scansorial insectivore

Average measurements (in mm): P4 4.08 x 2.61, M1 8.75 x 5.11, M2 7.10 x 6.19, p4 6.25 x 2.72, m1 8.00 x 3.88, m2 7.37 x 4.78