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Protictis haydenianus Cope 1882 (placental)

Osteichthyes - Theriiformes - Viverravidae

PaleoDB taxon number: 50959

Alternative combinations: Didymictis haydenianus, Viverravus haydenianus

Synonyms: Didymictis primus Cope 1884 (no. 45732), Prolimnocyon macfaddeni Rigby, Jr. 1980 (no. 50799)

Full reference: E. D. Cope. 1882. Synopsis of the Vertebrata of the Puerco Eocene epoch. Supplement on a new Meniscotherium from the Wasatch epoch. Proceedings of the American Philosophical Society 20:461-471

Belongs to Protictis according to T. J. Meehan and R. W. Wilson 2002

Sister taxa: Protictis (Bryanictis), Protictis (Protictis), Protictis (Protictoides), Protictis agastor, Protictis minor, Protictis paralus, Protictis simpsoni

Type specimens:

  • Protictis haydenianus: AMNH 3368, a partial skull (left maxilla with P3-M2 and left dentary with p4-m2)
  • Didymictis primus:
  • Prolimnocyon macfaddeni: Its type locality is Swain Quarry, which is in a Torrejonian terrestrial horizon in the Fort Union Formation of Wyoming.

Ecology: ground dwelling carnivore

Average measurements (in mm): P4 7.77 x 5.85, M1 6.15 x 8.93, M2 3.26 x 5.68, p4 6.95 x 3.16, m1 7.43 x 4.90, m2 5.45 x 3.26