The distribution and phylogenies of the species of genus Calyptogena and those of vestimentiferans in the Sagami Trough and the Nankai Trough

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Other Title
  • 相模トラフ・南海トラフにおけるシロウリガイとハオリムシの分布と系統
  • サガミ トラフ ナンカイ トラフ ニ オケル シロウリガイ ト ハオリムシ ノ

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Description

The phylogenies of species of the genus Calyptogena and vestimentiferans collected from the seep areas in the Sagami Trough and the Nankai Trough were analyzed on the basis of partial nucleotide sequences of mitochondrial DNA. The geographical distribution of Calyptogena was generally narrow and many endemic species were sampled from single sites. In contrast, species of vestimentiferan were distributed over wider geographical ranges and their dispersion was tend to be limitted by water depth rather than by horizontal distances. Difference of distribution pattern between two groups is thought to be attributed to the difference in the larval dispersive ability.

Journal

  • Fossils

    Fossils 60 (0), 23-25, 1996

    Palaeontological Society of Japan

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