Proterotheriidae
Proterotheriidae is an extinct family of litoptern ungulates known from the Oligocene-Late Pleistocene of South America. Members of the group were small-medium sized cursorial herbivores with brachydont teeth, with their toes showing progressive reduction, with later members of the group bearing weight on a single large toe similar to living horses.
Proterotheriidae Temporal range: | |
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Skeleton of Thoatherium | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | †Litopterna |
Suborder: | †Lopholipterna |
Superfamily: | †Proterotherioidea |
Family: | †Proterotheriidae Ameghino 1887 |
Synonyms | |
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