C3A1L1A1M3I1T1E1
12 points
CALAMITE is validvalid
an extinct treelike plant
a reedlike plant of an extinct group related to the horsetails, found as fossils chiefly of Carboniferous age
an extinct treelike plant
a reedlike plant of an extinct group related to the horsetails, found as fossils chiefly of Carboniferous age