The Divisaderan age is a South American land mammal age, covering a period of geologic time within the Middle or Late Eocene epochs of the Paleogene (>36.0 Ma). It follows the Mustersan age and is followed by the Tinguirirican age.

The Divisaderan is named after the Divisadero Largo Formation of Divisadero Largo, Mendoza, Argentina. It was originally distinguished by an unusual combination of archaic mammals and more recent-looking notoungulate fossils. However, more recent studies argue that the distinctive notoungulates reported from the Divisadero Largo Formation may actually be sourced from the younger (Miocene-age) Mariño Formation. Without these fossils, the Divisaderan may be too poorly-distinguished to stay in use compared to other middle-late Eocene SALMAs.

Formations

Fossils

References

Bibliography

1. General

   Divisadero Largo Formation

   Abanico Formation

3. Andesitas Huancache Formation

5. Chota Formation

   Guabirotuba Formation

   Leticia Formation

   Loreto Formation

   Paracas Group

   Pozo Formation

   Sarmiento Formation

7. Soncco Formation

   Yumaque Formation