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孔嘴贝属

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孔嘴贝属学名Rhynchotrema)是孔嘴贝科Rhynchotrematinae亚科下已灭绝的一个,生存在奥陶纪志留纪海洋中。它们的壳体较小,有着极其发育的肋状隆起,是奥陶纪有用的标准化石

事实速览 科学分类, 种 ...
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物种[2]

  • Rhynchotrema fringilla Billings, 1862
  • Rhynchotrema increbescens Hall, 1847
  • Rhynchotrema iowense Wang, 1949
  • Rhynchotrema nobilis Oraspold, 1956
  • Rhynchotrema nutrix Billings, 1866
  • Rhynchotrema parva Oraspold, 1956
  • Rhynchotrema parviseptatum Jin, 1989
  • Rhynchotrema perlamellosum Whitfield, 1882
  • Rhynchotrema plicatum Cooper & Kindle, 1936
  • Rhynchotrema pulchellum Foerste, 1924
  • Rhynchotrema seletensis Nikitin & al., 2003
  • Rhynchotrema tamarackensis Foerste, 1924
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