Nerineidae

Nerineidae
Bactroptyxis trachaea, Aubry-en-exmes, Normandy, France; Middle Jurassic (Bathonian).
Scientific classification
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Nerineidae

Zittel, 1873

The Nerineidae is an extinct taxonomic family of fossil sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.