Definitions

from The Century Dictionary.

  • noun The typical genus of Spiriferidæ, having the long brachial appendages coiled into a pair of spirals, called the carriage-spring apparatus, supported upon similarly convoluted shelly lamellæ, and the shell impunctate, with a long straight hinge-line.
  • noun A member of this genus.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Paleon.) Any one of numerous species of fossil brachipods of the genus Spirifer, or Delthyris, and allied genera, in which the long calcareous supports of the arms form a large spiral, or helix, on each side.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun paleontology Any of numerous species of fossil brachiopods of the genus Spirifer, or Delthyris, and allied genera, in which the long calcareous supports of the arms form a large spiral, or helix, on each side.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin spira ("a coil") + fero ("I bear").

Examples

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