Protarctos is an extinct genus of basal ursine bear that lived in North America and Eurasia during the Pliocene and into Early Pleistocene. Species of...
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theobaldi (Lydekker, 1884) †Protarctos Kretzoi, 1945 †Protarctos abstrusus (Bjork, 1970) †Protarctos boeckhi (Schlosser, 1899) †Protarctos ruscinensis (Depéret...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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Ursinae Genus Aurorarctos† (15–12.5 Mya) A. tirawa (15–12.5 Mya) Genus Protarctos† (4.9–3.6 Mya) P. abstrusus (4.9–3.6 Mya) Genus Ursus U. arctos priscus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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†Aurorarctos †Protarctos †Helarctos sinomalayanus †Melursus theobaldi Ursus...
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