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Gryphaea arcuata

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Gryphaea arcuata
Temporal range: Hettangian–Bajocian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Family: Gryphaeidae
Genus: Gryphaea
Species:
G. arcuata
Binomial name
Gryphaea arcuata
Lamarck, 1801

Gryphaea arcuata is an extinct species of foam oyster, a bivalve mollusc in the family Gryphaeidae from the Early Jurassic of Europe.

It is commonly referred to in English folklore as the 'devils toenail' due to its supposed resemblance to the devil's 'cloven hoof'.

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