La Boca Formation


The La Boca Formation is a geological formation in Tamaulipas state, northeast Mexico. It was trougth to date back to the Early Jurassic, concretely the Pliensbachian stage epoch. Although, the latest studies had proven that the local Vulcanism, related to the aperture of the Atlantic Ocean and the several Rift Events, that continue until the Bajocian where developed until the Latest Pliensbachian, with tha fossil taxa deposited on the rocks above. Due to successions of Aalenian depositional sistems on the upper layers of the Huizachal Canyon, has been delimited the formation to the Toarcian stage, being the regional equivalent of the Moroccan Azilal Formation.

Fossil record

Unclassified Diapsida

Synapsida

Sphenodontia

Pterosauria

Crocodrylomorpha

Dinosauria