Cassis (gastropod)

Cassis
Temporal range: Paleocene - Recent
A shell of Cassis cornuta
Five views of a shell of Cassis cornuta
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda
clade Sorbeoconcha
clade Hypsogastropoda
clade Littorinimorpha
Superfamily: Tonnoidea
Family: Cassidae
Subfamily: Cassinae
Genus: Cassis
Scopoli, 1777
Synonyms[1]

Cassidea Bruguière, 1789

Cassis, common name the helmet shells, is a genus of very large sea snails, marine gastropod mollusks in the family Cassidae, the helmet shells and their allies.[1] This is the type genus of the subfamily Cassinae.

Species

The genus Cassis includes 11 extant species and about 20 extinct species:[1][2]

Fossils of the sea snails within this genus have been found all over the world in sediments from Paleocene to Recent (age range: 66 to 0 million years ago).[2]

Fossil shell of Cassis mammillaris


Species brought into synonymy:[1]

References

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