epispire

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noun

A spiral ridge on the surface of the shell of some fossilized gastropods.

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Meanings

nounepispire (plural epispires)

plural epispires

  1. biologyA spiral ridge on the surface of the shell of some fossilized gastropods.

    Epispires, cothumopores, and lamellipores in cornutes are respiratory structures not atypical of early echinoderms and are only superficially similar to chordate gill slits.

    1997 October, R[onald] L. Parsley, “The echinoderm classes Stylophora and Homoiostelea: non Calcichordata”, in The Paleontological Society Papers, volume 3, Cambridge, Cambridgeshire: Cambridge University Press, →DOI, →ISSN, →OCLC, page 225
Cite this entry
APA

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

MLA

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

Chicago

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

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