| Ursus maritimus tyrannus Temporal range:
| |
|---|---|
| |
| Hypothetical restoration | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Carnivora |
| Family: | Ursidae |
| Genus: | Ursus |
| Species: | |
| Subspecies: | †U. m. tyrannus
|
| Trinomial name | |
| †Ursus maritimus tyrannus Kurtén, 1964
| |
Ursus maritimus tyrannus (lit. 'tyrant maritime bear') is a controversial extinct subspecies of polar bear.