Nannopithex

Nannopithex lacks a second premolar, much like other omomyids. They have reduced lower canines and second incisors, alongside enlarged first incisors. The rather underived molars of Nannopithex indicate it is a very basal member of Microchoerinae.^[2]

Nannopithex is closely related to Vectipithex, and 2 species formerly assigned to Nannopithex ('N'. raabi and 'N'.quaylei) have been moved to Vectipithex. Much like other Microchoerines, it is assumed Nannopithex resulted from a radiation event during the early Eocene.^[3]