New records of coleoid cephalopod jaws from the Upper Cretaceous of Hokkaido, Japan, and their paleobiogeographic and evolutionary implications

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• 作者：Kazushige Tanabe^a ; ^{tanabe@um.u-tokyo.ac.jp} ; Akihiro Misaki^b ; ^{misaki_a@kmnh.jp} ; Yoshinori Hikida^c ; ^{nmhikida@coral.ocn.ne.jp} ; Tomohiro Nishimura^d ; ^{tnishimura@town.mukawa.lg.jp}
• 关键词：Late Cretaceous ; Coleoidea ; Jaws ; Paleobiogeography ; Evolution ; North Pacific
• 刊名：Cretaceous Research
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：70
• 期：Complete
• 页码：128-141
• 全文大小：6713 K
• 卷排序：70

文摘

Seven Late Cretaceous coleoid jaws from Hokkaido, Japan were taxonomically studied. They are assigned to 2 genera and 3 species of Vampyromorpha and Cirrocotopodida. Non-belemnitid coleoids existed in the Late Cretaceous North Pacific region.