†Notoungulata (Notoungulates)
Family: Toxodontidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Mixotoxodon larensis | van Frank, 1957 | - | Late Pleistocene | Texas, USA, south to Bolivia | Extinct | Access |
| Toxodon platensis | Owen, 1837 | - | Late Pleistocene | Argentina, Bolivia, Brazil & Uruguay | Extinct | Access |
| Trigonodops lopesi | (Roxo, 1921) | - | ? | South America | Extinct | Access |