The Rosablanca Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes and the Middle Magdalena Basin. The formation consists of grey limestones, dol
The Paja Formation is an Early Cretaceous geologic formation of central Colombia. The formation extends across the northern part of the Altiplano Cundiboyacense, the Western Colombian emerald belt and
Desmatochelys padillai from the Paja Formation
Stratigraphic column of the Paja Formation with Sachicasaurus site indicated
Paleogeography of northern South America during the Barremian and early Aptian