Octodontotherium

Octodontotherium is an extinct genus of ground sloth of the family Mylodontidae, endemic to South America during the Oligocene-Early Miocene (Deseadan). It lived from 29—21 mya, existing for approximately .
Fossil distribution is exclusive to Santa Cruz Province, Argentina (Deseado and Sarmiento Formations) and Bolivia (Salla Formation).
Taxonomy.
"Octodontotherium" was named by Ameghino (1894). It was assigned to Mylodontidae by Carroll (1988); and to Mylodontinae by Gaudin (1995).