Desmatochoerus megalodon Peterson 1907

Mammalia - Ungulata - Merycoidodontidae

Alternative combination: Mesoreodon megalodon

Synonyms: Desmatochoerus curvidens Thorpe 1921, Desmatochoerus curvidens gregoryi Loomis 1924, Hypselochoerus gregoryi Loomis 1924, Promerycochoerus (Desmatochoerus) curvidens Thorpe 1921, Promerycochoerus curvidens Thorpe 1921, Promerycochoerus gregoryi Loomis 1924

Full reference: O. A. Peterson. 1907. The Miocene Beds of Western Nebraska and Eastern Wyoming and Their Vertebrate Faunae. Annals of Carnegie Museum 4(3):21-72

Belongs to Desmatochoerus according to M. S. Stevens and J. B. Stevens 1996

See also Lander 1998, Loomis 1924, Loomis 1933, Macdonald 1963, Macdonald 1970, Peterson 1906, Schultz and Falkenbach 1949, Schultz and Falkenbach 1954, Stevens and Stevens 2007, Thorpe 1921 and Thorpe 1937

Sister taxa: none

Type specimens:

  • Desmatochoerus megalodon: CM 1325, a partial skull (front of the skull and lower jaws of a young individual, but with all the permanent teeth in position). Its type locality is Lower Monroe Creek, which is in an Arikareean terrestrial horizon in Nebraska.
  • Promerycochoerus (Desmatochoerus) curvidens: YPM 10997, a partial skull.
  • Promerycochoerus gregoryi:


• Harrisonian of United States (5: Nebraska, South Dakota, Wyoming collections)

• Arikareean of United States (9: Nebraska, South Dakota, Wyoming)

• Oligocene of United States (3: Nebraska, New Mexico, South Dakota)

Total: 17 collections each including a single occurrence

Show more details

Specimen images are retrieved through the ePANDDA API.

Click image to enlarge. Click to access iDigBio record.