Ursus Linnaeus, 1758

W. Christopher Wozencraft, 1993, Order Carnivora, Mammal Species of the World (2 nd Edition), Washington and London: Smithsonian Institution Press, pp. 279-348 : 338

publication ID	https://doi.org/ 10.5281/zenodo.7359191
DOI	https://doi.org/10.5281/zenodo.7288837
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scientific name	Ursus Linnaeus, 1758
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Ursus Linnaeus, 1758 View in CoL . Syst. Nat., 10th ed., 1:47 View Cited Treatment .

TYPE SPECIES: Ursus arctos Linnaeus, 1758 View in CoL , by tautonymy ( Melville and Smith, 1987).

SYNONYMS: Thalarctos .

COMMENTS: The close relationship of these four species has been generally recognized by morphological and molecular studies ( Goldman et al., 1989; Hendey, 1980a; Kurtén and Anderson, 1980; Shields and Kocher, 1990). Allen (1938) proposed a close relationship between thibetanus and americanus . Thenius (1953), Goldman et al. (1989), and Shields and Kocher (1991) gave support to the monophyly of arctos with maritimus .