202384202384Ursus arctos horribilis202385202384202384Mexican grizzly bearEnglish202384202384230202384TWG standards met230invalidjunior synonym202384TWG standards met2023842302023841996-06-13 14:51:08.02007-08-15202384Curator of North American mammals and Chief of Mammal Section, National Biological Service, Smithsonian Institution, National Museum of Natural History, Washington, DC, USAAlfred L. GardnerUrsus arctos nelsoni2023842003-10-28Division of Natural Sciences, Bethel College, 1001 W. McKinley Ave., Mishawaka, IN 46545W. Christopher WozencraftUrsus arctos nelsoni2023842003-10-282023842023842023842023845Animalia 2023841996-07-29Ursus arctos nelsoni202384NODC Taxonomic Codedatabase2010-01-148.01998-09-23Ursus arctos nelsoni202384Mammal Species of the Worldhttp://nmnhgoph.si.edu/msw/website2005-05-06undefined20238402023841993-01-011-56098-217-91993-01-01xviii + 1207Corrections were made to text at 3rd printingMammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printingWashington, DC, USASmithsonian Institution PressWilson, Don E., and DeeAnn M. Reeder, eds.Ursus arctos nelsoni2023842013-03-011981-04-031981-04-031181The Mammals of North America, vols. I and II, 2nd ed.New York, New York, USAJohn Wiley and Sons, Inc.Hall, E. RaymondUrsus arctos nelsoni2023842012-12-21202384Merriam, 1914Ursus arctos nelsoniUrsus arctosnelsoni2023842023845Animalia 230Subspecies 202384Merriam, 19142003-10-28202384junior synonym202384invalid