New Data on Large Brown Bear (Ursus arctos L., 1758, Ursidae, Carnivora, Mammalia) from the Pleistocene in Yakutia


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Abstract

New finds of brown bear (Ursus arctos L., 1758) fossil remains from the territory of Yakutia, namely, skulls and mandibular bones, have been investigated. The new finds are exceptionally large: most dimensions of these specimens exceed those of the present-day brown bears of Yakutia and even the maximal parameters of the largest individuals of the present-day Eurasian subspecies U. a. beringianus and U. a. piscator. Analysis of various data showed that giant brown bears had inhabited northern Yakutia during the Karginian interstadial in the Late Pleistocene.

About the authors

G. G. Boeskorov

Institute of Diamond and Precious Metals Geology,
Siberian Branch, Russian Academy of Sciences; Academy of Sciences of the Republic of Sakha (Yakutia)

Author for correspondence.
Email: gboeskorov@mail.ru
Russian Federation, Yakutsk, 677007; Yakutsk, 677007

G. F. Baryshnikov

Institute of Zoology, Russian Academy of Sciences

Email: gboeskorov@mail.ru
Russian Federation, St. Petersburg, 199034

A. N. Tikhonov

Institute of Zoology, Russian Academy of Sciences

Email: gboeskorov@mail.ru
Russian Federation, St. Petersburg, 199034

A. V. Protopopov

Academy of Sciences of the Republic of Sakha (Yakutia)

Email: gboeskorov@mail.ru
Russian Federation, Yakutsk, 677007

A. I. Klimovsky

Academy of Sciences of the Republic of Sakha (Yakutia)

Email: gboeskorov@mail.ru
Russian Federation, Yakutsk, 677007

S. E. Grigoriev

Research Institute for Applied Ecology of the North, Ammosov Northeastern Federal University

Email: gboeskorov@mail.ru
Russian Federation, Yakutsk, 677013

M. Yu. Cheprasov

Research Institute for Applied Ecology of the North, Ammosov Northeastern Federal University

Email: gboeskorov@mail.ru
Russian Federation, Yakutsk, 677013

G. P. Novgorodov

Research Institute for Applied Ecology of the North, Ammosov Northeastern Federal University

Email: gboeskorov@mail.ru
Russian Federation, Yakutsk, 677013

M. V. Shchelchkova

Institute of Natural Sciences, Ammosov Northeastern
Federal University

Email: gboeskorov@mail.ru
Russian Federation, Yakutsk

J. van der Plicht

Centre for Isotope Research, University of Groningen

Email: gboeskorov@mail.ru
Netherlands, Groningen, NL-9747

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