Mixotoxodon

Mixotoxodon ("mixture "Toxodon"") is an extinct genus of notoungulate of the family Toxodontidae inhabiting South America, Central America and parts of southern North America during the Pleistocene, from 1,800,000—12,000 years ago.
Description.
"Mixotoxodon" is known by fragmentary remains, usually mandible fragments and teeth. Although the general appearance probably was very similar to another toxodontid from the Pleistocene, the better known "Toxodon", their fossils shown that the outer borders of the symphysis in the lower jaw don't diverge anteriorly, and the incisors form a semicircular structure that protrude less than the incisors of "Toxodon"; the snout was cylindrical, instead of the broad hippo-like muzzle of "Toxodon". The straight snout and the narrow lower incisors closely packed, suggest that this animal had a different feeding strategy compared to their southern relative, although the teeth of both genera was adapted to deal with abrasive food. It was a rhino-sized animal, with a weight of up to 3.8 tonnes, which makes it the largest member of Notoungulata.
"Mixotoxodon" is known from a single species, M. larensis. "Mixotoxodon" is the only notoungulate known to have migrated out of South America during the Great American Interchange. Its fossils have been found in northern South America, in Central America, in Veracruz and Michoacán, Mexico (with a possible find in Tamaulipas), and eastern Texas, USA. The genus was also one of the last surviving notoungulates, along with related genera such as the better-known "Toxodon". The name refers to the fact that "Mixotoxodon" combines characteristics typical of different toxodontid subfamilies.
Phylogeny.
The cladogram below is based in the study made by Analía Forasiepi and colleagues (2014), showing the position of "Mixotoxodon" inside Toxodontidae:
Fossil distribution.
This list indicates the countries and places where "Mixotoxodon" fossils have been found. The list follows Rincón, 2011, unless otherwise indicated: