Mammalia - Notoungulata

Full reference: G. G. Simpson. 1935. Descriptions of the oldest known South American mammals, from the Rio Chico Formation. American Museum Novitates 793:1-25

Parent taxon: Notioprogonia according to G. G. Simpson 1935

Sister taxa: Henricosborniidae, Notostylopidae, Satshatemnus

Subtaxa: Seudenius cteronc

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Type: Seudenius cteronc

Ecology: scansorial herbivore