 Oto-Pamean languages

The Oto-Pamean languages are a branch of the Oto-Manguean languages that includes languages of the Otomi-Mazahua, Matlatzinca, and Pamean language groups all of which are spoken in central Mexico.Like all Oto-Manguean languages, the Oto-Pamean languages are tonal languages, though most have relatively simple tone systems.