graptolite

noun grap·to·lite \ ˈgrap-tə-ˌlīt \

Definition of graptolite

: any of an extinct class (Graptolithina) of hemichordate colonial marine animals of the Paleozoic era with zooids contained in conical cups along a chitinous support

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Origin and Etymology of graptolite

Greek graptos painted (from graphein to write, paint) + English -lite — more at carve


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