Kingdom Animalia, Phylum Chordata, Class Mammalia, Order Carnivora, Family Ursidae
The Ursidae is a family of carnivorous mammals, commonly known as bears.
Subfamily Ailurinae[?]
- Genus Ailuropoda[?]
- Species melanoleuca (Giant Panda)
Subfamily Ursininae[?]
- Genus Helarctos[?]
- Species malayanus[?] (Sun Bear[?])
- Genus Melursus
- Species ursinus[?] (Sloth Bear[?])
- Genus Tremarctos[?]
- Species ornatus[?] (Spectacled Bear[?])
- Genus Ursus[?]
- Species americanus[?] (American Black Bear) - sometimes placed in its own genus, Euarcturus
- Species arctos (Brown Bear, Grizzly Bear)
- Species thibetanus[?] (Asiatic Black Bear[?])
- Species spelaeus[?] (Cave Bear) - extinct since the end of the last ice age
- Genus Thalarctos[?]
- Species maritimus (Polar Bear) - There is a growing tendency to classify this species under the genus Ursus.