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iNat·480152SpeciesMollusca3 field observationsExtinct
  1. Animals
  2. ›Molluscs
  3. ›Bivalves
  4. ›Autobranchia
  5. ›Pteriomorphia
  6. ›Oysters and Allies
  7. ›Ostreoidea
  8. ›Foam Oysters
  9. ›Gryphaeinae
  10. ›Gryphaea
Gryphaea dilatata
Plate 1 of 1. (c) Anastasiia Samokhvalova, some rights reserved (CC BY), uploaded by Anastasiia Samokhvalova · via iNaturalist

Gryphaea dilatata

Gryphea dilatata, common name "devil's toenail" is a species of Jurassic oyster, an extinct marine bivalve mollusc in the family Gryphaeidae.

This fossil oyster is frequently found in abundance in the localities where it occurs. It belongs to the Oxfordian and Kimmeridgian clays of the Jurassic and can grow to a diameter in excess of 15 centimetres (5.9 in).

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

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Every page naming Gryphaea dilatata in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 480152.