Ursus_minimus
Ursus_minimus
Thực đơn
Ursus_minimusLiên quan
Ursus Ursus americanus Ursus maritimus Ursus arctos horribilis Ursus minimus Ursus arctos Ursula K. Le Guin Ursula von der Leyen Ursula Owusu Ursula PoznanskiTài liệu tham khảo
WikiPedia: Ursus_minimus http://paleodb.org/cgi-bin/bridge.pl?action=basicC... http://www.pnas.org/content/91/25/12336.full.pdf