sinodonty

Those of you without sinodonty in your ancestry should be able to feel with your tongue that your incisors are slick and smooth across the inside surface, whereas those of you with sinodonty should feel your incisors are more bumpity-bumpity (that is the technical term).

What the shit? -- A Bad Archaeology on TV Rant zhukora1 2009

It's likely that he was descended from a small population of sundadonts (sundadonty being the dentition pattern that was an evolutionary precursor to sinodonty, which developed and still exists in South Asia, aka the Indian Subcontinent), whose ancestors may have migrated into the Americas before the solidification of the traits that comprise sinodonty, and subsequently competed, lived alongside, and were eventually genetically enveloped by the later waves of migration.

What the shit? -- A Bad Archaeology on TV Rant zhukora1 2009

Anyhoo, all three of these migrations were of what might be called the Mongoloid racial type, or more properly were all sinodonts, since the characteristics of the Mongoloid type were still in their incipient stage, but sinodonty (a dentition pattern characterized by the presence of shovel-shaped incisors*, which evolved in Central and primarily East Asia) was a trait held in common among all members of the pre-Mongoloid race then, and the Mongoloid race today.

What the shit? -- A Bad Archaeology on TV Rant zhukora1 2009