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Pentremites

noun Pen·tre·mi·tes \ ˌpen‧trəˈmīˌtēz \
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Definition of Pentremites

: a genus (the type of the family Pentremitidae) comprising Mississippian blastoid echinoderms having an ovate or pyriform calyx with five ambulacral areas suggestive of petals

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Origin and Etymology of pentremites

New Latin, from penta- (from Greek) + Greek trēma hole + New Latin -ites

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