Category:Romualdo Formation
The Romualdo Formation — a {{C|Late Cretaceous South America|Late Cretaceous}} {{C|Geologic formations of Brazil|geologic formation}}, Lagerstätte and {{C|Paleontological sites of Brazil|paleontological site}} in the {{C|Northeast Region, Brazil|Northeast Region of Brazil}}.
Category:Paleontological sites of Brazil
Category:Lower Cretaceous Series of South America
Category:Cretaceous paleontological sites of South America