Mammites and Allied Ammonites from the Cretaceous of Hokkaido and Saghalien : Studies of Cretaceous Ammonites from Hokkaido and Saghalien-XXXV

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説明

Despite world-wide distribution of Mammites and allied ammonites, little has been known about their examples from the Cretaceous of Hokkaido and Saghalien. Apart from the well defined Sumitomoceras faustum MATSUMOTO and MURAMOTO, 1969, seven species are described in this paper. They are a new species of Mammites, two species of Ampakabites, two species of Pseudaspidoceras and two species of a new genus. Since many of them are based on specimens of independent collections, the descriptions are given in four parts by different authorships. Some species are still poorly known, awaiting more and better preserved specimens. Before the description of the species notes are given on some genera. In conclusion, taxonomic rsults are summarized and problems of distribution, correlation and evolutionary history are briefly discussed.

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詳細情報 詳細情報について

  • CRID
    1390290699732313984
  • NII論文ID
    120006876041
  • NII書誌ID
    AA00732897
  • DOI
    10.5109/1544204
  • HANDLE
    2324/1544204
  • ISSN
    00236179
  • 本文言語コード
    en
  • 資料種別
    departmental bulletin paper
  • データソース種別
    • JaLC
    • IRDB
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用可

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