Fissurellidae
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Fissurellidae, commonly called keyhole limpets or slit limpets, is a taxonomic family of small to medium-sized limpet-like sea snails, marine gastropod molluscs in the clade Vetigastropoda.
Keyhole limpet 05
A fossil shell of Diodora italica from the Pliocene of Cyprus.
Vetigastropoda
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Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order, although they a
Fissurellidae
…called keyhole limpets or slit limpets, is a taxonomic family of small to medium-sized limpet-like sea snails, marine gastropod molluscs in the clade Vetigastropoda. Their common name derives from the small hole in the apex of their cone-like shells. Although superficially resembling "true" limpets, they are in…
Vetigastropoda various 1
The fossil vetigastropod Discohelix tunisiensis from the Matmor Formation (Middle Jurassic) of southern Israel.