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Esthonyx bisulcatus Cope 1874 (tillodont)

Osteichthyes - Cimolesta - Esthonychidae

PaleoDB taxon number: 46335

Synonyms: Esthonyx acer Cope 1874 (no. 46332), Esthonyx burmeisteri Cope 1874 (no. 144243), Esthonyx burmeisterii Cope 1874 (no. 46336), Platychoerops burmeisteri Cope 1874 (no. 144244)

Belongs to Esthonyx according to C. L. Gazin 1953

Sister taxa: Esthonyx acutidens, Esthonyx gunnelli, Esthonyx spatularius

Type specimens:

  • Esthonyx bisulcatus: U.S.N.M. No. 1103, a mandible (left lower jaw with three molars, P3, and two associated incisors).
  • Esthonyx acer: Its type locality is Almagre Arroyo (Cope), which is in a Wasatchian terrestrial horizon in the San Jose Formation of New Mexico.
  • Esthonyx burmeisterii:

Ecology: scansorial insectivore

Average measurements (in mm): m1 7.62 x 6.07