Borophagus hilli Johnston 1939 (bone-crushing dog)

Mammalia - Carnivora - Canidae

Alternative combination: Osteoborus hilli

Synonyms: Borophagus crassapineatus Olsen 1956, Osteoborus crassapineatus Olsen 1956, Osteoborus progressus Hibbard 1944

Full reference: C. S. Johnston. 1939. Preliminary report on the late middle Pliocene, Axtel locality, and the description of a new member of the genus Osteoborus. American Journal of Science 237(12):895-898

Belongs to Borophagus according to X. Wang et al. 1999

See also Albright et al. 2019, Hulbert 1992, Johnston 1939, Kurten and Anderson 1980, Richey 1979, Tedford et al. 1987, Tseng and Geisler 2016 and Webb 1969

Sister taxa: Borophagus diversidens, Borophagus dudleyi, Borophagus littoralis, Borophagus orc, Borophagus parvus, Borophagus pugnator, Borophagus secundus, Dinocyon (Borophagus) meandrinus, Osteoborus crassipinaetus, Porthocyon matthewi

Type specimens:

  • Borophagus hilli: Panhandle Plains Historical Museum No. 1558, a partial skull. Its type locality is Axtel, which is in a Hemphillian terrestrial horizon in Texas.
  • Osteoborus crassapineatus:
  • Osteoborus progressus: Its type locality is Saw Rock Canyon (Lower), which is in a Blancan terrestrial horizon in the Rexroad Formation of Kansas.

Ecology: ground dwelling carnivore


• Blancan of El Salvador (1 collection), Mexico (1), United States (5: Idaho, Kansas, New Mexico, South Carolina, Washington)

• Pliocene of United States (1: Florida)

• Hemphillian of United States (6: Florida, Texas)

• Miocene of United States (3: Florida)

Total: 17 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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