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Hace 1 día · In Early to Middle Miocene times, the Eastern and Western Cordilleras enclosed a fluvial depositional environment in the Magdalena Basin. During this epoch in the tectonic history, maximum foreland sedimentation to the east (Medina area) was reached, [40] and a rich fossil fauna was present to the southeast of the Eastern Hills area, in the present-day Tatacoa Desert of Huila .
Hace 1 día · The South American land mammal ages ( SALMA) establish a geologic timescale for prehistoric South American fauna beginning 64.5 Ma during the Paleocene and continuing through to the Late Pleistocene (0.011 Ma).
