Trochida

Trochida
Temporal range:
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Vetigastropoda
Order: Trochida
Superfamilies

See text

Trochida is an order of small to very large vetigastropods. It includes recent and extinct sea snails with gills and an operculum.