Tonnoidea
| Tonnoidea | |
|---|---|
| A live but retracted individual of Cabestana spengleri, a species in the Ranellidae | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Tonnoidea Suter, 1913 (1825) |
| Families | |
|
See text | |
| Synonyms | |
|
Cassoidea (junior synonym) | |
The Tonnoidea are a superfamily of sea snails, marine gastropod molluscs in the order Littorinimorpha. This superfamily includes many very large species.