spirifers

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A form of spirifer — Any of numerous species of fossil brachiopods of the genera †Spirifer and †Delthyris and allied genera in order †Spiriferida, in which the long calcareous supports of the arms form a large spiral, or helix, on each side.

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Meanings

noun
  1. pluralplural of spirifer
Cite this entry
APA

spirifers. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/spirifers

MLA

“spirifers.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/spirifers. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “spirifers,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/spirifers.

Source: spirifers on Wiktionary, CC BY-SA 4.0.