Chorrillo Formation

The Chorrillo Formation, also named as Chorillo Formation, is a Maastrichtian (Late Cretaceous Epoch, 72.1 - 66 million years ago) geologic formation in southern Patagonia, Argentina. The formation is more than 50 m thick and underlies the Calafate Formation and rests on top of the La Irene Formation.

Fossils
Dinosaur remains are among the fossils that have been recovered from the formation.

Fossils recovered from the formation are:

Saurischians

 * Sauropods


 * Theropods

Reptiles

 * Mosasaurs


 * Rhynchocephalian


 * Snakes


 * Turtles

Plants

 * Pollen