Ivantosaurus
| Ivantosaurus Temporal range: Wordian, | |
|---|---|
| Life restoration | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Suborder: | †Biarmosuchia |
| Family: | †Eotitanosuchidae |
| Genus: | †Ivantosaurus Tchudinov, 1983 |
| Type species | |
| †Ivantosaurus ensifer Tchudinov, 1983 | |
Ivantosaurus is an extinct genus of therapsid that lived in Russia during the Wordian stage of the Permian period, named in honor of paleontologist Ivan Antonovich Efremov.