Paleontological deposit, whose density in terms of elements recovered makes it one of the richest deposits of late Pleistocene and early Holocene fauna excavated to date in the entire American continent.

This paleontological zone has revealed remains of dinosaurs from the Late Cretaceous period, approximately 72 million years ago. They include fossils that have led to the discovery of new species and new genres of dinosaurs that are unique in the world. For example, the Velafrons coahuilensis dinosaur, characterized by its sail-shaped forehead, not yet encountered anywhere else.