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| Kingdom Animalia |
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Ursus arctos Linnaeus, 1758 – valid – Brown Bear, Grizzly Bear, Oso pardo
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Ursus arctos alascensis Merriam, 1896 – valid
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Ursus arctos albus Gmelin, 1788 – invalid
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Ursus arctos annulatus Billberg, 1827 – invalid
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Ursus arctos arctos Linnaeus, 1758 – valid – brown bear
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Ursus arctos argenteus Billberg, 1827 – invalid
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Ursus arctos aureus Fitzinger, 1855 – invalid
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Ursus arctos baikalensis Ognev, 1924 – invalid
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Ursus arctos beringianus Middendorff, 1853 – valid – Siberian brown bear
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Ursus arctos brunneus Billberg, 1827 – invalid
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Ursus arctos californicus Merriam, 1896 – valid
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Ursus arctos caucasicus Smirnov, 1919 – invalid
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Ursus arctos collaris F. G. Cuvier, 1824 – valid
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Ursus arctos crowtheri Schinz, 1844 – valid
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Ursus arctos dalli Merriam, 1896 – valid
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Ursus arctos dinniki Smirnov, 1919 – invalid
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Ursus arctos fuscus Gmelin, 1788 – invalid
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Ursus arctos grandis J. E. Gray, 1864 – invalid
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Ursus arctos griseus Kerr, 1792 – invalid
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Ursus arctos gyas Merriam, 1902 – valid
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Ursus arctos horribilis Ord, 1815 – valid – brown bear, grizzly bear
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Ursus arctos isabellinus Horsfield, 1826 – valid
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Ursus arctos jeniseensis Ognev, 1924 – invalid
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Ursus arctos kenaiensis Merriam, 1904 – invalid
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Ursus arctos kolymensis Ognev, 1924 – invalid
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Ursus arctos lasiotus Gray, 1867 – valid
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Ursus arctos lasistanicus Satunin, 1913 – invalid
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Ursus arctos major Nilsson, 1820 – invalid
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Ursus arctos marsicanus Altobello, 1921 – invalid
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Ursus arctos meridionalis Middendorff, 1851 – invalid
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Ursus arctos middendorffi Merriam, 1896 – valid – Kodiak bear
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Ursus arctos minor Nilsson, 1820 – invalid
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Ursus arctos myrmephagus Billberg, 1827 – invalid
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Ursus arctos nelsoni Merriam, 1914 – invalid – Mexican grizzly bear
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Ursus arctos niger Gmelin, 1788 – invalid
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Ursus arctos normalis Gray, 1864 – invalid
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Ursus arctos persicus Lönnberg, 1925 – invalid
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Ursus arctos polonicus J. E. Gray, 1864 – invalid
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Ursus arctos pruinosus Blyth, 1854 – valid – brown bear
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Ursus arctos rossicus J. E. Gray, 1864 – invalid
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Ursus arctos rufus Borkhausen, 1797 – invalid
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Ursus arctos scandinavicus J. E. Gray, 1864 – invalid
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Ursus arctos schwenki Schoemaker, 1913 – invalid
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Ursus arctos sibiricus J. E. Gray, 1864 – invalid
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Ursus arctos sitkensis Merriam, 1896 – valid
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Ursus arctos smirnovi Lönnberg, 1925 – invalid
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Ursus arctos stenorostris J. E. Gray, 1864 – invalid
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Ursus arctos stikeenensis Merriam, 1914 – valid
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Ursus arctos syriacus Hemprich and Ehrenberg, 1828 – valid
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Ursus melanarctos Heude, 1898 – invalid |
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