Hypsiops breviceps Douglass 1907

Mammalia - Ungulata - Merycoidodontidae

Alternative combination: Ticholeptus breviceps

Synonym: Hypsiops johndayensis Schultz and Falkenbach 1950

Full reference: E. Douglass. 1907. Some new merycoidodonts. Annals of Carnegie Museum 4:99-109

Belongs to Hypsiops according to C. B. Schultz and C. H. Falkenbach 1950

See also Douglass 1907, Lander 1998, Stevens and Stevens 2007, Tabrum and Nichols 2001 and Thorpe 1937

Sister taxa: Hypsiops brachymelis, Hypsiops erythroceps

Type specimens:

  • Hypsiops breviceps: CM 1191, a partial skeleton (a skull, mandible, left humerus, left radius and ulna, right radius and part of the right humerus, a tibia, a fibula, a tarsus with two metatarsals, greater p). Its type locality is Woodin, which is in a Harrisonian terrestrial horizon in Montana.
  • Hypsiops johndayensis: CIT 3503, a partial skeleton (Skull with I1(alv.)-M3, partial left ramus with p3-m3, and atlas).


• Miocene of United States (1: Oregon collection)

• Harrisonian of United States (5: Montana, Nebraska, Wyoming)

Total: 6 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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