Opinions from J. Gardner 1945
- 'Adrana belongs to Nuculanidae'
- 'Adrana was reranked as Leda (Adrana) and belongs to Leda' according to Harris 1895
- 'Arca cuculloides belongs to Arca' according to Conrad 1848
- 'Arca cuculloides is recombined as Arca (Barbatia) cuculloides' according to Renick and Stenzel 1931
- 'Arcidae belongs to Arcacea'
- 'Arcinae belongs to Arcidae'
- 'Barbatia belongs to Arcinae'
- 'Calorhadia belongs to Nuculanidae'
- 'Calorhadia (Litorhadia) belongs to Calorhadia'
- 'Calorhadia (Litorhadia) santaanai belongs to Calorhadia (Litorhadia)'
- 'Calyptraphorus belongs to Strombidae'
- 'Coronia genitiva belongs to Coronia'
- 'Crassatella tumidula is recombined as Crassatellites tumidulus'
- 'Crassatellinae belongs to Crassatellidae'
- 'Dinocardium was reranked as Cerastoderma (Dinocardium) and belongs to Cerastoderma'
- 'Eosurcula moorei belongs to Eosurcula'
- 'Glycymeris belongs to Arcidae'
- 'Glyptotoma crassiplicata belongs to Glyptotoma'
- 'Halonanus belongs to Noetinae'
- 'Hesperiturris belongs to Turridae' according to J. A. Gardner 1945
- 'Hesperiturris nodocarinatus belongs to Hesperiturris' according to J. A. Gardner 1945
- 'Leda (Adrana) aldrichiana belongs to Leda (Adrana)' according to Harris 1895
- 'Leda (Adrana) aldrichiana is recombined as Adrana aldrichiana'
- 'Leda (Ledina) smirna belongs to Leda (Ledina)' according to Dall 1898
- 'Leda (Ledina) smirna is recombined as Ledina smirna'
- 'Leda atakta belongs to Leda' according to Gardner 1927
- 'Leda atakta is recombined as Sacella atakta'
- 'Leda bastropensis belongs to Leda' according to Harris 1895
- 'Leda bastropensis is recombined as Calorhadia (Litorhadia) bastropensis'
- 'Leda compsa belongs to Leda' according to Gabb 1860
- 'Leda compsa is recombined as Calorhadia (Litorhadia) compsa'
- 'Leda lisbonensis belongs to Leda' according to Aldrich 1895
- 'Leda lisbonensis is recombined as Calorhadia (Litorhadia) lisbonensis'
- 'Leda mater belongs to Leda' according to Meyer 1885
- 'Leda mater is recombined as Calorhadia (Litorhadia) mater'
- 'Ledina belongs to Nuculanidae'
- 'Ledina was reranked as Leda (Ledina) and belongs to Leda' according to Dall 1898
- 'Michela belongs to Turridae' according to J. A. Gardner 1945
- 'Michela trabeatoides belongs to Michela' according to J. A. Gardner 1945
- 'Modiola alabamiensis is recombined as Musculus alabamiensis'
- 'Nodipecten was reranked as Chlamys (Nodipecten) and belongs to Chlamys'
- 'Noetia pulchra belongs to Noetia' according to Gabb 1860
- 'Noetia pulchra is recombined as Halonanus pulchrus'
- 'Noetiinae [misspelled as Noetinae] belongs to Arcidae'
- 'Nucula belongs to Nuculidae'
- 'Nucula magnifica mauricensis is recombined as Nucula mauricensis'
- 'Nucula mediavia belongs to Nucula'
- 'Nucula sphenopsis belongs to Nucula'
- 'Nuculana belongs to Nuculanidae'
- 'Nuculanidae belongs to Nuculacea'
- 'Nuculidae belongs to Nuculacea'
- 'Orthoyoldia belongs to Nuculanidae'
- 'Pectinidae [misspelled as Pectenidae] belongs to Pectenacea'
- 'Pectunculus declivis belongs to Pectunculus' according to Conrad 1833
- 'Pectunculus declivis is recombined as Limopsis declivis' according to Conrad 1860
- 'Pectunculus declivis is recombined as Trigonarca declivis' according to Dall 1898
- 'Pectunculus declivis is recombined as Halonanus declivis'
- 'Pectunculus mississippiensis is recombined as Glycymeris mississippiensis'
- 'Protosurcula belongs to Turridae'
- 'Protosurcula gabbi belongs to Protosurcula'
- 'Saccella [misspelled as Sacella] belongs to Nuculanidae'
- 'Yoldia psammotaea belongs to Yoldia' according to Dall 1898
- 'Yoldia psammotaea is recombined as Orthoyoldia psammotaea'