†family Protoxodontidae Ameghino 1889 (notoungulate)
Mammalia - Notoungulata - Protoxodontidae
Full reference: F. Ameghino. 1889. Contribución al conocimiento de los mamíferos fósiles de la República Argentina [Contribution to the knowledge of the fossil mammals of the Argentine Republic]. Actas de la Academia Nacional de Ciencias de la República Argentina en Córdoba 6:xxxii-1027
Parent taxon: Toxodontia according to F. Ameghino 1889
Sister taxa: Atryptheridae, Eutoxodontia, Haplodontheriidae, Homalodotheriidae, Isotemnidae, Lithops praevius, Nesotherium, Noaditherium, Notohippidae, Pachyrucidae, Periphragnis, Rhadinotherium limitatum, Tembotheridae, Xotodontidae
Subtaxa: none
Ecology: scansorial herbivore
Distribution: there are no occurrences of Protoxodontidae in the database