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Pentamerus

Pentamerus is a prehistoric genus of brachiopod that lived from the Silurian to the Middle Devonian in Asia, Europe, and North America.

1、五房贝

以五房贝（Pentamerus），始石燕发育，缺失拟壳房贝、枝房贝、斯特兰贝为特征。造成碗足类生态分异如此明显的原因是环境的差异。

2、五房贝属

五房贝属（Pentamerus）是腕足动物门有铰纲五房贝目的一属。壳体大，五边形或长卵形，主端圆。

Pentamerus dovsoplanus五房贝

地球科学

生物学

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