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13 points
CALAMITES is validvalid
CALAMITE, an extinct treelike plant
CALAMITE, a reedlike plant of an extinct group related to the horsetails, found as fossils chiefly of Carboniferous age
CALAMITE, an extinct treelike plant
CALAMITE, a reedlike plant of an extinct group related to the horsetails, found as fossils chiefly of Carboniferous age