| A (0 species) |
| B (0 species) |
| C (0 species) |
| D (0 species) |
| E (1 species) |
| Eremotherium - Late Pliocene - Early Holocene, 4.9-0.011 Ma |
| F (0 species) |
| G (0 species) |
| H (1 species) |
| Hapalops - Early-Late Miocene (Santacrucian-Huayquerian)~17.5-7.246 Ma |
| I (0 species) |
| J (0 species) |
| K (0 species) |
| L (0 species) |
| M (1 species) |
| Megatherium - Early Pliocene[1] to Early Holocene, 5-0.010 Ma Possible later date of 0.008 Ma |
| N (0 species) |
| O (0 species) |
| P (0 species) |
| Q (0 species) |
| R (0 species) |
| S (0 species) |
| T (0 species) |
| U (0 species) |
| V (0 species) |
| W (0 species) |
| X (0 species) |
| Y (0 species) |
| Z (0 species) |