Lower Heterobranchia

infraclass of gastropods

Valvatoidea is a superfamily of minute freshwater and marine snails, aquatic gastropod mollusks in the informal group Lower Heterobranchia.

Omalogyroidea is a superfamily of minute sea snails, marine gastropod mollusks or micromollusks in the informal group Lower Heterobranchia.

Mathildoidea is a superfamily of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.

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

Orbitestelloidea are a superfamily of minute sea snails, marine gastropod molluscs or micromolluscs in the infraclass Lower Heterobranchia.