Hona hemen Billetek proposaturiko kladograma:[3]
Notoungulata |
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Henricosbornia |
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Simpsonotus |
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Toxodontia |
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Thomashuxleya |
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Periphragnis |
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Pleurostylodon |
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Homalodotheriidae |
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Leontiniidae |
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Eomorphippus |
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Eurygenium |
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Rhynchippus |
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Morphippus |
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Pascualihippus |
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Argyrohippus |
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Toxodontidae |
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Nesodon |
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Adinotherium |
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Ponanskytherium |
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Hoffstetterius |
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Toxodon |
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Typotheria |
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Colbertia |
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Oldfieldthomasia |
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Campanorco |
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Acropithecus |
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Ultrapithecus |
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Interatheriidae |
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Notopithecus |
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Federicoanaya |
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Protypotherium |
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Miocochilius |
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Eohyrax |
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Pseudhyrax |
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Mesotheriidae |
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Plesiotypotherium |
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Mesotherium |
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Trachytherus |
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Archaeotypotherium |
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Archaeohyrax |
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Hegetotheriidae |
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Prohegetotherium |
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Hegetotherium |
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Prosotherium |
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Paedotherium |
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