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The Divisaderan age was proposed as South American Land Mammal Ages, covering a period of geologic time (42.0—36.0 Ma) within the Eocene epoch of the Paleogene used more specifically with. It was based in the fossils found in Divisadero Largo, Mendoza, Argentina, that were unique for reunite ancient and more recent species of mammals. Nowadays, it is a mixture comprehensed by two different deposits, one more ancient from the early eocene, Divisadero Largo Formation, and another more recent from the Oligocene, Mariño Formation.[1]


  1. ^ López, G. M. (2008). Los ungulados de la Formación Divisadero Largo (Eoceno inferior?) de la provincia de Mendoza, Argentina: sistemática y consideraciones bioestratigráficas. Unpublished D. Phil. Thesis, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.