| Oldfieldthomasia Temporal range: Middle Eocene
~ | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Notoungulata |
| Family: | †Oldfieldthomasiidae |
| Genus: | †Oldfieldthomasia Ameghino, 1901 |
| Species | |
| |
| Synonyms | |
| |
Oldfieldthomasia is an extinct genus of notoungulate, probably related to the suborder Typotheria. It lived during the Middle Eocene, in what is today South America.