Fossils of Argentinean ferugliotheriids come from the Los Alamitos ("Ferugliotherium"), La Colonia ("Ferugliotherium" and "Argentodites"), and Allen Formations ("Trapalcotherium"). All three are approximately the same age, dating to the Campanian (84–71 mya) or more likely the Maastrichtian (71–66 mya), but the La Colonia Formation is perhaps a little younger. The Los Alamitos and Allen Formations may have been deposited in a marshy environments, and the depositional environment of the La Colonia Formations may have been an estuary, tidal flat, or coastal plain.