Deseadan


The Deseadan age is a period of geologic time within the Oligocene epoch of the Paleogene to the Early Miocene epoch of the Neogene, used more specifically within the South [American land mammal age|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

Formation
bold is type		CountryBasinNotes
Deseado FormationDeseado Massif
Abanico FormationAbanico Basin
Agua de la Piedra FormationPrecordillera
Barzalosa FormationUpper Magdalena Valley
Castillo FormationFalcón Basin
Chambira FormationUcayali Basin
Chilcatay FormationPisco Basin
Dos Bocas FormationProgreso Basin
Fray Bentos Formation
Paraná Basin
Monte León FormationAustral Basin
Moquegua FormationMoquegua Basin
Mugrosa FormationMiddle Magdalena Valley
Petaca FormationSubandean Belt
"Puca Group" - Lacayani faunaSubandean Belt
Río Baguales FormationAysén Basin
Salla FormationSalla-Luribay Basin
Sarmiento FormationGolfo San Jorge Basin
Tremembé Formation/São Paulo FormationTaubaté Basin

Correlations

The Deseadan South American land mammal age is equivalent to the Arikareean in the North American land mammal age 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.