Montehermosan

The Montehermosan age is a period of geologic time (6.8—4.0 Ma) within the Miocene epoch of the Neogene used more specifically with South American Land Mammal Ages. It follows the Huayquerian and precedes the Chapadmalalan age.[1]

References

Neogene Period
Miocene Pliocene
Aquitanian |Burdigalian
Langhian | Serravallian
Tortonian | Messinian
Zanclean | Piacenzian