Loxolophus hyattianus Cope 1885 (condylarth)

Mammalia - Procreodi - Arctocyonidae

Alternative combinations: Chriacus hyattianus, Protochriacus hyattianus

Synonyms: Loxolophus adapinus Cope 1885, Loxolophus attenuatus Osborn and Earle 1895, Mimotricentes mirielae Van Valen 1978, Protochriacus attenuatus Osborn and Earle 1895

Full reference: E. D. Cope. 1885. The oldest Tertiary Mammalia. American Naturalist 19:385-387

Belongs to Loxolophus according to J. J. Eberle and J. A. Lillegraven 1998

See also Cope 1885, Hay 1902, Hunter 1997, Matthew 1897, Matthew 1937, Scott 1892, Van Valen 1978, Williamson 1996 and Williamson and Lucas 1993

Sister taxa: Deltatherium interruptum, Loxolophus criswelli, Loxolophus faulkneri, Loxolophus grangeri, Loxolophus kimbetovius, Loxolophus pentacus, Loxolophus priscus, Loxolophus schizophrenus, Loxolophus spiekeri, Loxolophus stenognathus

Type specimens:

  • Loxolophus hyattianus: AMNH 3121, a maxilla (crushed fragment of maxilla containing LM1-M3)
  • Loxolophus adapinus:
  • Mimotricentes mirielae: AMNH 58219, a mandible (jaw with one-half m2 and m3). Its type locality is Mammalon Hill, which is in a Puercan terrestrial horizon in the Nacimiento Formation of New Mexico.
  • Protochriacus attenuatus:

Ecology: ground dwelling omnivore


• Paleocene of United States (11: Colorado, New Mexico, Wyoming collections)

Total: 11 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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