Ursus_minimus
Ursus_minimus
Thực đơn
Ursus_minimusLiên quan
Ursus Ursus americanus Ursus maritimus tyrannus Ursus arctos horribilis Ursus maritimus 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