Semicassis
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Semicassis Temporal range: Eocene - Recent |
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| A live individual of Semicassis undulata from Italy | |
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| Five views of a shell of Semicassis bisulcata from the Philippines | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha |
| Superfamily: | Tonnoidea |
| Family: | Cassidae |
| Subfamily: | Cassinae |
| Genus: |
Semicassis Mörch, 1852 |
| Type species | |
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Cassis japonica Reeve, 1848 |
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Semicassis is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus Semicassis:
Extinct species within this genus include:
Fossils of species within this genus have been found all over the world in sediments from Eocene to Quaternary (age range: 37.2 to 0.0 million years ago).
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Wikipedia