Nerineidae
Introduction The '''Nerineidae''' is an extinct taxonomic family of fossil sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.
Genera Genera within the family Nerineidae include:* ''Nerinea'', the type genus* ''Bactroptyxis''''Bactroptyxis trachaea'', Aubry-en-exmes, Normandy, France; Middle Jurassic (Bathonian). Close-up view of interior.
References *  The Taxonomicon