TetoniusTetonius is a genus of anaptomorphine primate from Eocene Wyoming.DescriptionThe dental formula of Tetonius is. The premolars are bicuspid whilst the molars are tritubercular. They had enlarged orbits and a shortened face. Compared to other Wasatch Formation fauna, Tetonius had a rather large cranium.ClassificationTetonius homunculus was originally ascribed to the genus Anaptomorphus, though this is disputed now.