Dictionary of Human Evolution and Biology

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Tetonius Matthew, 1915

Genus of tarsiiform primate from the early Eocene of North America, belonging to the omomyid subfamily Anaptomorphinae; three species; this genus may be the ancestor to Absarokius; known from jaws, isolated teeth, and some cranial material. Estimated body mass ranges from 100 to 300 g. Large orbits, but other characteristics make it difficult to say with certainty what the activity cycle was; short snout. Dental formula: 2.1.3.3/2.1.3.3; dental morphology interpreted as adapted for frugivory.

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