日本産 Glossaulax (Gastropoda : Naticidae) の進化 : 第一部 : G. didyma, G. vesicalis, G. bicolor および G. reiniana の進化 Evolution of Japanese Glossaulax species (Gastropoda : Naticidae) : I : G. didyma, G. vesicalis, G. bicolor and G. reiniana

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Japanese Glossaulax ranges in age from the Middle Miocene to Recent, and consists of the following seven species : G. didyma (Roding), early Middle Miocene-Recent; G. vesicalis (Philippi), Early Pleistocene-Recent; G. hyugensis (Shuto), Early Pliocene-Late Pliocene; G. hagenoshitensis (Shuto), Late Pliocene-Early Pleistocene; G. nodai Majima, Late Pliocene-Early Pleistocene; G. bicolor (Philippi), Late Miocene-Recent; and G. reiniana (Dunker), Late Pliocene-Recent. Among them, the evolution of G. hyugensis, G. hagenoshitensis and G. nodai is discussed in part II of the present study. Glossaulax didyma is considered to be a descendant of a Glossaulax species in northwestern America where Glossaulax ranges in age from the Eocene to Recent. In Pliocene time, G. didyma gradually changed its morphology and increased its morphological variability. Glossaulax vesicalis evolved from G. didyma. In Late Pliocene time, G. didyma had a local population that showed an extremely wide range of morphological variation, including one variant very similar to the earliest known individuals of G. vesicalis. This population appears to be a transitional population between G. didyma and G. vesicalis. Glossaulax bicolor and G. reiniana are considered to be descendants of G. didyma. They share some important characters with G. didyma.

収録刊行物

  • 化石

    化石 44(0), 13-23, 1988

    日本古生物学会

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各種コード

  • NII論文ID(NAID)
    110002703535
  • NII書誌ID(NCID)
    AN00041606
  • 本文言語コード
    JPN
  • 資料種別
    雑誌論文
  • ISSN
    0022-9202
  • NDL 記事登録ID
    3179092
  • NDL 刊行物分類
    ME71;RA82
  • NDL 雑誌分類
    ZR1(科学技術--生物学) // ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z18-838
  • データ提供元
    CJP引用  NDL  NII-ELS  J-STAGE 
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