Opinions from C. S. Hickman 2023
- 'Acesta belongs to Limidae'
- 'Amussium (Parvamussium) is reassigned into Propeamussium'
- 'Arca (Barbatia) cowlitzensis is recombined as Porterius cowlitzensis'
- 'Arcacea is corrected as Arcoidea and belongs to Arcida'
- 'Arcoida is corrected as Arcida and belongs to Pteriomorphia'
- 'Barbatia gabbi is recombined as Porterius gabbi'
- 'Barbatia woodfordi is recombined as Porterius woodfordi'
- 'Bathyisognomon belongs to Isognomonidae'
- 'Bathyisognomon smithwickensis belongs to Bathyisognomon'
- 'Camptonectinae belongs to Pectinidae'
- 'Crenella belongs to Crenellidae'
- 'Crenella porterensis belongs to Crenella'
- 'Crenella washingtonensis belongs to Crenella'
- 'Crenellidae belongs to Mytiloidea'
- 'Deltopecten belongs to Camptonectinae'
- 'Deltopecten keaseyorum belongs to Deltopecten'
- 'Deltopecten kieli belongs to Deltopecten'
- 'Glycimeris andersoni belongs to Glycimeris'
- 'Glycymerididae belongs to Arcoidea'
- 'Glycymeris belongs to Glycymerididae'
- 'Glycymeris winlockensis belongs to Glycymeris'
- 'Grammatodontinae belongs to Parallelodontidae'
- 'Isognomon belongs to Isognomonidae'
- 'Isognomonidae belongs to Pterioidea'
- 'Lima (Plagiostoma) oregonensis belongs to Lima (Plagiostoma)' according to Clark 1925
- 'Lima (Plagiostoma) oregonensis is recombined as Acesta oregonensis'
- 'Lima bela is recombined as Plicacesta bela'
- 'Limacea is corrected as Limoidea and belongs to Limoida'
- 'Limidae belongs to Limoidea'
- 'Limoida belongs to Pteriomorphia'
- 'Limopsidae belongs to Limopsoidea'
- 'Limopsis belongs to Limopsidae'
- 'Limopsis squiresi belongs to Limopsis'
- 'Limopsoidea belongs to Arcida'
- 'Mytiloidea belongs to Pteriomorphia'
- 'Parallelodon (Porterius) was reranked as Porterius and belongs to Parallelodontidae'
- 'Parallelodontidae belongs to Arcoidea'
- 'Pecten (Propeamussium) was reranked as Propeamussium and belongs to Propeamussiidae'
- 'Pectinidae belongs to Pectinoidea'
- 'Pectinoida is corrected as Pectinida and belongs to Pteriomorphia'
- 'Pectinoidea belongs to Pectinida'
- 'Plicacesta belongs to Limidae'
- 'Propeamussiidae belongs to Pectinoidea'
- 'Propeamussiium (Parvamussium) mistensis belongs to Propeamussiium (Parvamussium)'
- 'Pteriina was reranked as the order Pteriida and belongs to Pteriomorphia'
- 'Pterioidea belongs to Pteriida'