Architectonicoidea

Architectonicoidea is a superfamily of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.^[1]

Architectonicoidea
shell Spirolaxis centrifuga
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Infraclass:	Lower Heterobranchia
Superfamily:	Architectonicoidea Gray, 1850

This superfamily contains the extant family Architectonicidae and also contains the extinct families Amphitomariidae and Cassianaxidae.^[1]