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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 Pentamerus
 五房貝屬

From: Webster's Revised Unabridged Dictionary (1913)

 Pen·tam·e·rus n.  Paleon. A genus of extinct Paleozoic brachiopods, often very abundant in the Upper Silurian.
 Pentamerus limestone Geol., a Silurian limestone composed largely of the shells of Pentamerus.
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