| Isotemnidae Temporal range: Late Paleocene–Late Oligocene |
|
|---|---|
| Thomashuxleya | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Notoungulata |
| Suborder: | †Toxodonta |
| Family: |
†Isotemnidae Ameghino, 1897 |
| Genera | |
|
†Anisotemnus |
|
†Anisotemnus
†Coelostylodon
†Distylophorus
†Hedralophus
†Isotemnus
†Lophocoelus
†Pampatemnus
†Periphragnis
†Pleurocoelodon
†Pleurostylodon
†Rhyphodon
†Thomashuxleya
Isotemnidae is an extinct family of notoungulate mammals known from the Paleocene through Oligocene of South America.