Dolores Formation, Uruguay


The Dolores Formation is a geologic formation in Uruguay. The formation is dated to the Late Pleistocene-Early Holocene. Performing optically stimulated luminescence and thermoluminescence methods on sand samples from different locations within the formation produced ages between 32,230 ± 2,640 and 10,570 ± 990 years ago, while a set of calibrated radiocarbon dating based on organic soil, wood, and mammal teeth resulted in ages between 27,436 and 11,857 years ago.

Fossil content

The following fossils have been reported from the formation:Catonyx cuvieriHippidionLestodon armatusMacraucheniaPanochthus tuberculatusSmilodon fatalisSmilodon populatorNotiomastodon platensis