nummulites

常见例句

• A large,coin-shaped,fossil foraminifer of the genus Nummulites,widely distributed in limestone formations from the Eocene Epoch to the Miocene Epoch of the Cenozoic.
  货币虫货币虫体形大而呈硬币状，化石有孔的虫，从始新世到新生代的中新世广泛分布在石灰岩地层中。
• A large, coin-shaped, fossil foraminifer of the genus Nummulites, widely distributed in limestone formations from the Eocene Epoch to the Miocene Epoch of the Cenozoic.
  货币虫货币虫体形大而呈硬币状，化石有孔的虫，从始新世到新生代的中新世广泛分布在石灰岩地层中
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