The Deseadan () age is a period of geologic time (29.0–21.0 Ma) within the Oligocene epoch of the Paleogene to the Early Miocene epoch of the Neogene, used more specifically within the SALMA classification of South America. It follows the Tinguirirican and precedes the Colhuehuapian age.

Etymology

The age is named after the Deseado Formation of the Deseado Massif in eastern Patagonia, Argentina.

Formations

Fossils

Correlations

The Deseadan South American land mammal age (SALMA) is equivalent to the Arikareean in the North American land mammal age (NALMA) and the Harrisonian in the 2000 version of the classification. It overlaps with the Hsandagolian of Asia and the MP 25 zone of Europe, the Waitakian and the Landon epoch of New Zealand.

References

Bibliography

1. General

   Deseado Formation

   Abanico Formation

3. Agua de la Piedra Formation

   Barzalosa Formation

   Castillo Formation

   Chambira Formation

   Chilcatay Formation

   Dos Bocas Formation

   Fray Bentos Formation

   Gaiman Formation

   Lacayani fauna

   Monte León Formation

   Moquegua Formation

   Mugrosa Formation

   Petaca Formation

   Río Baguales Formation

   Salla Formation

   Sarmiento Formation

   Tremembé Formation