| Ages |        | ||||||
|---|---|---|---|---|---|---|---|
| Defining formations and sites |
| ||||||
| Sources | |||||||
| Montehermosan | |
|---|---|
| Usage information | |
| Celestial body | Earth |
| Regional usage | Regional |
| Time scale(s) used | South American |
| Definition | |
| Chronological unit | Age |
| Stratigraphic unit | Stage |
The Montehermosan age is a period of geologic time (6.8–4.0 Ma) within the Miocene and Pliocene epochs of the Neogene used more specifically with South American Land Mammal Ages. It follows the Huayquerian and precedes the Chapadmalalan age.[1]