Villalba de la Sierra Formation
The Villalba de la Sierra Formation is a Campanian to Maastrichtian geologic formation in Spain. Fossil dinosaur eggs have been reported from the formation, that comprises gypsiferous, grey, argillaceous mudstones and sandstones, deposited in a floodplain environment. Abundant titanosaurian remains, including Lohuecotitan were found in the formation. More than 10,000 fossil remains of various fishes, amphibians, lizards, dinosaurs, turtles, and crocodiles are also known from the site, one of the richest for the Late Cretaceous in Europe.
