Discoveries of gomphotheres in Mexico date from the middle of the last century. Despite this long history, the diversity of the group is practically unknown. The gomphotheres were present in Mexico since at least the Barstovian land mammal age, represented by the genus Gomphotherium (Ferrusquı´a Villafranca, 1990). In addition, Rhynchotherium had been recorded there in Hemphillian faunas (Carranza-Castan˜eda and Miller, 1984). Most of the records of the genus Cuvieronius lack geographic and stratigraphic information and, as a consequence, the age assignments other than Plio-Pleistocene are uncertain

This is the first record of Cuvieronius in Me´xico where postcranial material is associated; the presence of lower jaws of individuals of different ages, will allow consideration of variations.

Although here I prefer to assign the material to C. tropicus, a detailed and critical revision of all the species described for Mexico (C. tropicus and C. oligobunis) and Central America (C. hyodon) is mandatory for understanding the history, distribution, and diversity of this proboscidean.