It is a bulge on the buccal cusp that is only found in Native American Indians, with highest frequencies of occurrence in Arizona.

The name is not a dental term; it comes from a regional linguistic division of Native American Indian language groups.

The hypocone appears to have evolved independently more than twenty times in different mammal groups during the Cenozoic period.

The crests between the cusps are adaptations for slicing food during occlusion or mastication (chewing).

The crests between the cusps are adaptations for slicing food during occlusion or mastication (chewing).