A study of Mrhiliceras (Cretaceous Ammonoidea) : Studies of the Cretaceous ammonites from Hokkaido and Sakhalin-XCIII

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概要

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• An ammonoid genus Mrhiliceras Kennedy and Wright, 1985, is revised to be based on the“inflated forms”as represented by the holotype of its type species Mammites lapparenti Pervinquière, 1907. How are the“compressed forms”of Kennedy and Wright, 1985 should be treated is a problem to be examined further. In this paper we describe an example of M. lapparenti from the basal part of the Cenomanian (Cretaceous) sequence of strata in the Soeushinai area, northwest Hokkaido. It is somewhat larger than the previously reported specimens and represents a full grown shell of a mature stage.

• 日本学士院の論文

著者

• NISHIDA Tamio

  Faculty of Culture and Education, Saga University

• MATSUMOTO Tatsuro

  The Kyushu University Museum

関連論文

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• A pachydiscid ammonite Lewesiceras from the Cenomanian of Japan : Studies of the Cretaceous ammonites from Hokkaido and Sakhalin-XCVI
• Integrated biostratigraphic and radiometric study on the Lower Cenomanian (Cretaceous) of Hokkaido, Japan
• A study of Mrhiliceras (Cretaceous Ammonoidea) : Studies of the Cretaceous ammonites from Hokkaido and Sakhalin-XCIII
• A revised taxonomy of the ammonoid genus Desmoceras from Japan and southern Sakhalin
• Turrilitid ammonoid Carthaginites from Hokkaido (Studies of the Cretaceous ammonites from Hokkaido and Sakhalin - XCIV)

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