Anomalomya Cossmann, 1887 † accepted as Berthelinia Crosse, 1875 (original description)
Anomalomya corrugata Cossmann, 1887 † accepted as Berthelinia corrugata (Cossmann, 1887) † (original description)
Anomia hinnitoides Cossmann, 1887 † (original description)
Arca baudoni Cossmann, 1887 † accepted as Barbatia baudoni (Cossmann, 1887) † (original description)
Arca bezanconi Cossmann, 1887 † accepted as Trigonodesma bezanconi (Cossmann, 1887) † (original description)
Arca boutillieri Cossmann, 1887 † accepted as Barbatia boutillieri (Cossmann, 1887) † (original description)
Arca chevallieri Cossmann, 1887 † accepted as Trigonodesma chevallieri (Cossmann, 1887) † (original description)
Arca cossmanni de Laubrière, 1887 † accepted as Arcopsis cossmanni (de Laubrière, 1887) † (original description)
Arca miliacea Cossmann, 1887 † accepted as Scapularca miliacea (Cossmann, 1887) † (original description)
Avicula cosmeta Cossmann, 1887 † accepted as Aviculoperna cosmeta (Cossmann, 1887) † (original description)
Aviculovulsa Cossmann, 1887 † (original description)
Aviculovulsa fayellensis Cossmann, 1887 † (original description)
Bernayia Cossmann, 1887 † accepted as Parvicorbis Cossmann, 1892 † (original description)
Bernayia goodallina Cossmann, 1887 † accepted as Parvicorbis goodallina (Cossmann, 1887) † (original description)
Bernayia subarata Cossmann, 1887 † accepted as Parvicorbis subarata (Cossmann, 1887) † (original description)
Cardita (Miodon) P. P. Carpenter, 1864 † accepted as Miodontiscus Dall, 1903 (basis of record)
Cardita (Miodon) bezanconi Cossmann, 1887 † accepted as Choniocardia olivieri Pacaud, 2022 † (original description)
Cardita aequicostata Cossmann, 1887 † accepted as Carditamera aequicostata (Cossmann, 1887) † (original description)
Cardita catalaunensis de Laubrière, 1887 † accepted as Venericardia catalaunensis (de Laubrière, 1887) † (original description)
Cardita dameriacensis Cossmann, 1887 † accepted as Miodomeris dameriacensis (Cossmann, 1887) † (original description)
Cardita densecostata Cossmann, 1887 † accepted as Paraglans densecostata (Cossmann, 1887) † (original description)
Cardita guttifera Cossmann, 1887 † accepted as Choniocardia guttifera (Cossmann, 1887) † (original description)
Chama bezanconi Cossmann, 1887 † (original description)
Dreissensia chonioides Cossmann, 1887 † accepted as Dreissena chonioides Cossmann, 1887 † (original description)
Dreissensia curvirostris Cossmann, 1887 † accepted as Dreissena curvirostris Cossmann, 1887 † (original description)
Erycina prisca de Laubrière, 1887 † (original description)
Erycina ruellensis Cossmann, 1887 † (original description)
Erycina semipecten Cossmann, 1887 † (original description)
Erycina transversaria Cossmann, 1887 † (original description)
Goodallia producta Cossmann, 1887 † accepted as Microstagon productum (Cossmann, 1887) † (original description)
Kellia aequilateralis Cossmann, 1887 † accepted as Semeloidea aequilateralis (Cossmann, 1887) † (original description)
Kellia chevallieri Cossmann, 1887 † (original description)
Kellia elliptica Cossmann, 1887 † accepted as Bornia elliptica (Cossmann, 1887) † (original description)
Kellia essomiensis Cossmann, 1887 † accepted as Divarikellia essomiensis (Cossmann, 1887) † (original description)
Kellia laticosta Cossmann, 1887 † accepted as Divarikellia laticosta (Cossmann, 1887) † (original description)
Kellia laubrierei Cossmann, 1887 † accepted as Bornia laubrierei (Cossmann, 1887) † (original description)
Kellia ovoides Cossmann, 1887 † (original description)
Kellia texta Cossmann, 1887 † accepted as Planikellia texta (Cossmann, 1887) † (original description)
Laubriereia Cossmann, 1887 † (original description)
Laubriereia cultellus Cossmann, 1887 † (original description)
Laubriereia cycloides Cossmann, 1887 † accepted as Montacuta cycloides (Cossmann, 1887) † (original description)
Laubriereia goodallina Cossmann, 1887 † (original description)
Limea tenuisculptata Cossmann, 1887 † (original description)
Limopsis chonioides Cossmann, 1887 † accepted as Limarca chonioides (Cossmann, 1887) † (original description)
Limopsis perobliqua Cossmann, 1887 † accepted as Limarca perobliqua (Cossmann, 1887) † (original description)
Lithodomus hemirhabdota Cossmann, 1887 † accepted as Lithophaga hemirhabdota (Cossmann, 1887) † (original description)
Lucina bernayi Cossmann, 1887 † accepted as Cavilucina bernayi (Cossmann, 1887) † (original description)
Lucina bicristata Cossmann, 1887 † accepted as Parvilucina bicristata (Cossmann, 1887) † (original description)
Lucina brevifulcrata Cossmann, 1887 † accepted as Gibbolucina brevifulcrata (Cossmann, 1887) † (original description)
Lucina dautzenbergi Cossmann, 1887 † accepted as Parvilucina dautzenbergi (Cossmann, 1887) † (original description)
Lucina intusplicata Cossmann, 1887 † accepted as Microloripes intusplicatus (Cossmann, 1887) † (original description)
Ludovicia Cossmann, 1887 † accepted as Berthelinia Crosse, 1875 (original description)
Ludovicia squamula Cossmann, 1887 † accepted as Berthelinia squamula (Cossmann, 1887) † (original description)
Modiola ocrophaia Cossmann, 1887 † accepted as Brachidontes ocrophaius (Cossmann, 1887) † (original description)
Modiolaria arcaeformis Cossmann, 1887 † accepted as Gregariella arcaeformis (Cossmann, 1887) † (original description)
Montacuta tenuissima Cossmann, 1887 † (original description)
Mysia irradiata Cossmann, 1887 † accepted as Diplodonta irradiata (Cossmann, 1887) † (original description)
Mysia morleti Cossmann, 1887 † accepted as Diplodonta morleti (Cossmann, 1887) † (original description)
Mysia segregata Cossmann, 1887 † accepted as Bruetia segregata (Cossmann, 1887) † (original description)
Mytilus eurynotus Cossmann, 1887 † accepted as Perna eurynota (Cossmann, 1887) † (original description)
Nucinella ovalina Cossmann, 1887 † (original description)
Nucula woodi Cossmann, 1887 † (original description)
Parisiella Cossmann, 1887 † (original description)
Parisiella ambigua Cossmann, 1887 † (original description)
Plicatula cossmanni Cossmann, 1887 † (original description)
Plicatula intuscrenata Cossmann, 1887 † (original description)
Plicatula phymatophora Cossmann, 1887 † (original description)
Radula bernayi Cossmann, 1887 † accepted as Limaria bernayi (Cossmann, 1887) † (original description)
Scintilla minuta Cossmann, 1887 † accepted as Spaniorinus minutus (Cossmann, 1887) † (original description)
Scintilla texta Cossmann, 1887 † accepted as Spaniorinus textus (Cossmann, 1887) † (original description)
Sportella fabula Cossmann, 1887 † accepted as Angusticardo fabula (Cossmann, 1887) † (original description)
Sportella variabilis Cossmann, 1887 † accepted as Angusticardo variabilis (Cossmann, 1887) † (original description)