Petoskey stone

noun

A smooth fossil of a rugosan coral found in Michigan.

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Meanings

nounPetoskey stone (plural Petoskey stones)

plural Petoskey stones

  1. biologyA smooth fossil of a rugosan coral found in Michigan.
Cite this entry
APA

Petoskey stone. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Petoskey%20stone

MLA

“Petoskey stone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Petoskey%20stone. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Petoskey stone,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Petoskey%20stone.

Source: Petoskey stone on Wiktionary, CC BY-SA 4.0.