Ages
- Lujanian: Lower boundary 0.8 Ma. Upper boundary 0.011 Ma.
- Ensenadan: Lower boundary 1.2 Ma. Upper boundary 0.8 Ma.
- Uquian: Lower boundary 3 Ma. Upper boundary 1.2 Ma.
- Chapadmalalan: Lower boundary 4 Ma. Upper boundary 3 Ma.
- Montehermosan: Lower boundary 6.8 Ma. Upper boundary 4 Ma.
- Huayquerian: Lower boundary 9 Ma. Upper boundary 6.8 Ma.
- Chasicoan: Lower boundary 10 Ma. Upper boundary 9 Ma.
- Mayoan: Lower boundary 11.8 Ma. Upper boundary 10 Ma.
- Laventan: Lower boundary 13.8 Ma. Upper boundary 11.8 Ma.
- Colloncuran: Lower boundary 15.5 Ma. Upper boundary 13.8 Ma.
- Friasian: Lower boundary 16.3 Ma. Upper boundary 15.5 Ma.
- Santacrucian: Lower boundary 17.5 Ma. Upper boundary 16.3 Ma.
- Colhuehuapian: Lower boundary 21.0 Ma. Upper boundary 17.5 Ma.
- Deseadan: Lower boundary 29.0 Ma. Upper boundary 21.0 Ma.
- Tinguirirican: Lower boundary 36.0 Ma. Upper boundary 29.0 Ma.
- Divisaderan: Lower boundary 42.0 Ma. Upper boundary 36.0 Ma.
- Mustersan: Lower boundary 48.0 Ma. Upper boundary 42.0 Ma.
- Casamayoran: Lower boundary 54.0 Ma. Upper boundary 48.0 Ma.
- Riochican: Lower boundary 57.0 Ma. Upper boundary 54.0 Ma.
- Itaboraian: Lower boundary 59.0 Ma. Upper boundary 57.0 Ma.
- Peligran: Lower boundary 62.5 Ma. Upper boundary 59.0 Ma.
- Tiupampan: Lower boundary 64.5 Ma. Upper boundary 62.5 Ma.
Read more about this topic: South American Land Mammal Age
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