Tablazo Formation, Ecuador

The Tablazo Formation is a Middle Pleistocene geologic formation of Santa Elena Province in western Ecuador. The claystones and sandstones were deposited in an estuarine environment.

Fossil content
The formation has provided the following fossils:
 * Geochelone sp.
 * Eremotherium cf. laurillardi
 * Notiomastodon platensis (described as Haplomastodon waringii)
 * Smilodon fatalis

An association of two subadult and one adult specimen of Smilodon fatalis was reported from the formation by Reynolds, Seymour & Evans (2021), who interpret the subadult specimens as likely to be siblings, and evaluate the implications of this finding for the knowledge of the life history of S. fatalis.