spirifer

noun spi·ri·fer \ˈspīrəfə(r)\

Definition of spirifer

  1. 1 capitalized :  a large genus (the type of the family Spiriferidae) of articulate brachiopods that have the arms supported within the shell by long spirally coiled spiralia which form a pair of cones with their apexes directed more or less laterally toward the ends of the long hinge line and that abound in Silurian, Devonian, and Carboniferous formations

  2. 2 or spiriferid \spīˈrifərə̇d\ plural -s [spiriferid from New Latin Spiriferidae family of brachiopods, from Spirifer, type genus + -idae] :  any brachiopod of Spirifer or a related genus —called also spire-bearer

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Origin and Etymology of spirifer

New Latin, from spir- + -fer


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