Ortotherium List of prehistoric mammals Mylodontinae Archaeomylodon Ocnotherium Neocnus Diabolotherium Proschismotherium Parocnus Proplatyarthrus Protamandua Pseudoglyptodon Mesopotamocnus Imagocnus Ahytherium Mionothropus Magdalenabradys Simomylodon Baraguatherium Aymaratherium Brievabradys Urumacocnus Proscelidodon Meizonyx Nothrotheriops Sibotherium Australonyx Pronothrotherium Proeremotherium Huilabradys Eionaletherium Octodontotherium Thinobadistes Miocnus Analcitherium Megatheriinae Pattersonocnus Prepotherium Chubutherium Scelidodon Prepoplanops Megalocnus Hiskatherium Oreomylodon Megistonyx Valgipes Mylodontidae Xibalbaonyx Lakukullus Hapaloides Neonematherium Promegather…

rium Megalocnidae Nohochichak Pliometanastes Nematherium Lestobradys Pelecyodon Bolivartherium Paramylodon Orophodon Eremotherium Scelidotherium Nothrotherium Acratocnus Palaeomyrmidon Megathericulus Chasicobradys Octomylodon Mcdonaldocnus Pseudoprepotherium Nothropus Urumacotherium Megalonyx Megalonychidae Scelidotheriidae Mylodon Catonyx Thalassocnus Glossotherium Nothrotheriidae Megatheriidae Hapalops Lestodon Ituzaingó Formation Huayquerian