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 speciesof fossil brachiopodsof the genusSpirifer, or Delthyris, and allied genera, in which the long calcareous supportsof the armsform a large spiral, or helix, on each side.
from Wiktionary, Creative Commons Attribution/Share-Alike License
From Latin spira ("a coil") + fero ("I bear").
Sorry, no example sentences found.