Subspecies of Brown Bear

There is little agreement on classification of brown bears. Some systems have proposed as many as 90 subspecies, while recent DNA analysis has identified as few as five clades. DNA analysis recently revealed that the identified subspecies of brown bears, both Eurasian and North American, are genetically quite homogeneous, and that their genetic phylogeography does not correspond to their traditional taxonomy. As of 2005, 16 subspecies have been recognized. The subspecies have been listed as follows: 

East Siberian brown bear	Eurasian Brown Bear	Grizzly Bear
Himalayan Brown Bear	Kamchatka Brown Bear	Kodiak Bear
Syrian Brown Bear	Tibetan Blue Bear	Ussuri Brown Bear

Other subspecies of Brown Bear

Subspecies Name	Distribution	Description
Ursus Arctos Nelsoni – Mexican Grizzly Bear (Extinct)	Northern Mexico, including Chihuahua, Coahuila, and Sonora, southwestern United States including southern ranges of Texas, Arizona, and New Mexico	This bear is believed extinct due to cattle ranching in both the United States and Mexico. Distinct in its ability to survive arid conditions, it could live in both montane pine forests of Mexico and canyonlands of Sonoran Desert.
Ursus arctos sitkensis	Baranof Island	Appearing to be more closely related to the polar bear than to other brown bears, this species is called "clade I" by Waits, and others., and is part of the subspecies identified as U. a. sitkensis, by Hall and as U. a. dalli by Kurtén.
Ursus arctos marsicanus Marsican brown bear	Marsica (a small zone in Central Italy)	No Description
Ursus arctos stikeenensis	No information	No Description
Ursus arctos alascensis	Alaska	No Description
Ursus arctos californicus – California golden bear	California	No Description
Ursus arctos crowtheri – Atlas bear	California	No Description
Ursus arctos dalli	No information	No Description