Ticholeptus zygomaticus Cope 1878 (oreodont)

Mammalia - Ungulata - Merycoidodontidae

Alternative combination: Merychyus zygomaticus

Synonym: Poatrephes paludicola Douglass 1903

Full reference: E. D. Cope. 1878. Descriptions of new extinct Vertebrata from the Upper Tertiary and Dakota Formations. Bulletin of the United States Geological and Geographical Survey of the Territories 4(2):379-396

Belongs to Ticholeptus according to M. S. Stevens and J. B. Stevens 2007

See also Cope 1878, Cope 1884, Douglass 1903, Douglass 1906, Douglass 1907, Hay 1902, Kelly and Lander 1988, Lander 1998, Loomis 1920, Schultz and Falkenbach 1941, Tabrum and Nichols 2001 and Thorpe 1937

Sister taxa: Ticholeptus calimontanus, Ticholeptus hypsodus, Ticholeptus obliquidens, Ticholeptus rileyi, Ticholeptus tooheyi

Type specimens:

  • Ticholeptus zygomaticus: AMNH 8112, a partial skull (Crushed skull (lacking nasals, frontals, and a portion of the occipital region) with I1-M3 (P1 br.) and mandible with i1-m3)
  • Poatrephes paludicola: CM 845, a skull (Crushed skull (lacking nasals and right zygomatic arch) with I1-P1 alv. and P2-M3 (P2 and M1 br.)). Its type locality is Flint Creek Beds, which is in a Barstovian terrestrial horizon in Montana.

Ecology: ground dwelling herbivore


• Miocene of United States (32: California, Florida, Idaho, Montana, Nebraska, Nevada, Oregon collections)

Total: 32 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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