The Chapadmalalan age is a period of geologic time (4.0–3.0 Ma) within the Pliocene epoch of the Neogene used more specifically with South American Land Mammal Ages. It follows the Montehermosan and precedes the Uquian age.[1]

Fossil content

Fossils of Josephoartigasia magna, a rodent in the family Dinomyidae from this age have been found in southern Uruguay.[2]


  1. ^ Paleo Database: Chapadmalalan
  2. ^ Francis, J. C. & Mones, A. (1966). Artigasia magna n. g., n. sp. (Eumegamyinae), un roedor gigantesco de la época Pliocena Superior de las Barrancas de San Gregorio, Departamento de San José, República Oriental del Uruguay. Kraglieviana 3, 89–100.