World Library  
Flag as Inappropriate
Email this Article

Ursus (genus)

Article Id: WHEBN0000432201
Reproduction Date:

Title: Ursus (genus)  
Author: World Heritage Encyclopedia
Language: English
Subject: Bear, Brown bear, Asian black bear, Polar bear, Tibetan blue bear
Collection: Bears, Mammal Genera, Pliocene First Appearances
Publisher: World Heritage Encyclopedia

Ursus (genus)

Temporal range: Pliocene - Holocene, 5.333–0 Ma
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
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

  • American black bear, Ursus americanus
    • U. a. altifrontalis - Olympic black bear
    • U. a. amblyceps - New Mexico black bear
    • U. a. americanus eastern black bear
    • U. a. californiensis - California black bear
    • U. a. carlottae - Haida Gwaii black bear or Queen Charlotte black bear
    • U. a. cinnamomum - cinnamon bear
    • U. a. emmonsii - glacier bear
    • U. a. eremicus - Mexican black bear
    • U. a. floridanus - Florida black bear
    • U. a. hamiltoni - Newfoundland black bear
    • U. a. kermodei - Kermode bear or spirit bear
    • U. a. luteolus - Louisiana black bear
    • U. a. machetes - West Mexico black bear
    • U. a. perniger - Kenai black bear
    • U. a. pugnax - Dall black bear
    • U. a. vancouveri - Vancouver Island black bear
  • MacFarlane's bear, Ursus inopinatus (cryptid; if an authentic species, extinct)
  • Polar bear, Ursus maritimus (earlier Thalarctos maritimus)
    • U. m. maritimus - (no common name, classification contested)
    • U. m. marinus - Siberian polar bear (classification contested)
    • U. m. tyrannus Pleistocene polar 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 simply "grizzly–polar bear hybrid".


  1. ^
  2. ^
  3. ^
  4. ^
  5. ^
  6. ^
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.