Ursus (genus)

Ursus Temporal range: Pliocene - Holocene, 5.333–0Ma PreꞒ Ꞓ O S D C P T J K Pg N
From top to bottom: Brown bear, American Black Bear, Polar bear, Asian Black Bear.
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Carnivora
Family:	Ursidae
Genus:	Ursus[1][2] Linnaeus, 1758
Species
Ursus arctos Ursus americanus Ursus maritimus Ursus thibetanus Ursus spelaeus (extinct)

Ursus is a genus in the family Ursidae (bears) that includes the widely distributed brown bears,^[3] the polar bear,^[4] and black bears. The name is derived from the Latin ursus, meaning bear.^[5][6]

Species and subspecies of Ursus

• † Ursus abstrusus

• American Black Bear, Ursus americanus
  • Ursus americanus altifrontalis - Olympic black bear
  • Ursus americanus amblyceps - New Mexico black bear
  • Ursus americanus americanus Eastern black bear
  • Ursus americanus californiensis - California black bear
  • Ursus americanus carlottae - Haida Gwaii black bear or Queen Charlotte black bear
  • Ursus americanus cinnamomum - Cinnamon bear
  • Ursus americanus emmonsii - Glacier bear
  • Ursus americanus eremicus - Mexican black bear
  • Ursus americanus floridanus - Florida black bear
  • Ursus americanus hamiltoni - Newfoundland black bear
  • Ursus americanus kermodei - Kermode bear or spirit bear
  • Ursus americanus luteolus - Louisiana black bear
  • Ursus americanus machetes - West Mexico black bear
  • Ursus americanus perniger - Kenai black bear
  • Ursus americanus pugnax - Dall black bear
  • Ursus americanus vancouveri - Vancouver Island black bear

• Brown Bear, Ursus arctos
  • Ursus arctos arctos - European brown bear
  • Ursus arctos alascensis - Alaskan brown bear
  • Ursus arctos collaris - East Siberian brown bear
  • Ursus arctos beringianus - Kamchatka brown bear
  • †Ursus arctos crowtheri - Atlas bear, (extinct)
  • †Ursus arctos dalli - Dall brown bear (possibly extinct?)
  • Ursus arctos gobiensis - Gobi bear,
  • Ursus arctos horribilis - Grizzly bear
  • Ursus arctos isabellinus - Himalayan brown bear
  • Ursus arctos lasiotus - Ussuri brown bear
  • Ursus arctos middendorffi - Kodiak bear
  • Ursus arctos nelsoni - Mexican grizzly bear (extinct?)
  • Ursus arctos piscator - Bergman's bear (extinct?)
  • Ursus arctos pruinosus - Tibetan blue bear
  • Ursus arctos sitkensis - Sitka brown bear
  • Ursus arctos syriacus - Syrian brown bear

• † Ursus arvernensis

• † Deninger's bear, Ursus deningeri

• † Etruscan bear, Ursus etruscus

• † Gamssulzen Cave Bear, Ursus ingressus

• † MacFarlane's bear, Ursus inopinatus (cryptid; if an authentic species, extinct)

• † Pleistocene small cave bear, Ursus rossicus

• † Ursus sackdillingensis

• Polar bear, Ursus maritimus (earlier Thalarctos maritimus)
  • Ursus maritimus maritimus - (No common name) (classification contested)
  • Ursus maritimus marinus - Siberian polar bear (classification contested)
  • † Ursus maritimus tyrannus Pleistocene polar bear

• † Auvergne bear, Ursus minimus

• † Cave bear, Ursus spelaeus

• Asian black bear, Ursus thibetanus
  • Ursus thibetanus formosanus - Formosan black bear,
  • Ursus thibetanus gedrosianus - Baluchistan bear or Pakistan black bear
  • Ursus thibetanus japonica - Japanese black bear
  • Ursus thibetanus laniger - Himalayan black bear
  • Ursus thibetanus mupinensis - Indochinese black bear
  • Ursus thibetanus thibetanus - Tibetan black bear
  • Ursus thibetanus ussuricus - Ussuri black bear

A hybrid between grizzly bears and polar bears has also been recorded (known commonly as a pizzly, prizzly or grolar bear). The official name is a grizzly–polar bear hybrid.

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References