Megalonychidae Neocnus Archaeomylodon Mesopotamocnus Diabolotherium Ocnotherium Nothrotheriops Proplatyarthrus Meizonyx Huilabradys Pseudoglyptodon Pattersonocnus Analcitherium Megatheriinae Australonyx Sibotherium Parocnus Proschismotherium Protamandua Simomylodon Baraguatherium Magdalenabradys Mionothropus Proscelidodon Imagocnus Eionaletherium Octodontotherium Xibalbaonyx Hapaloides Lakukullus Neonematherium Ahytherium Proeremotherium Hiskatherium Oreomylodon Megistonyx Prepotherium Chubutherium Prepoplanops Megalocnus Bolivartherium Brievabradys Aymaratherium Urumacocnus Nohochichak Megalocnidae Lestobradys Pelecyodon Pronothrotherium Nematherium Plio…

ometanastes Orophodon Miocnus Thinobadistes Mcdonaldocnus Chasicobradys Megathericulus Octomylodon Palaeomyrmidon Mylodontinae Scelidotherium Pseudoprepotherium Scelidodon Nothrotherium Acratocnus Promegatherium Mylodontidae Valgipes Nothropus Urumacotherium Paramylodon Eremotherium Scelidotheriidae Megalonyx Catonyx Mylodon Glossotherium Megatheriidae Thalassocnus Nothrotheriidae Hapalops Lestodon