Opinions from R. A. Fortey 1975
- 'Ampyx delicatulus belongs to Ampyx'
- 'Ampyx porcus belongs to Ampyx'
- 'Ampyx spongiosus belongs to Ampyx'
- 'Ampyx toxotis belongs to Ampyx'
- 'Ampyxella belongs to Raphiophorinae'
- 'Ampyxina belongs to Raphiophorinae'
- 'Ampyxinella belongs to Raphiophorinae'
- 'Ampyxoides belongs to Raphiophorinae'
- 'Ampyxoides inermis belongs to Ampyxoides'
- 'Anisonotella belongs to Endymioniinae'
- 'Asaphus (Ampyx) was reranked as Ampyx and belongs to Raphiophorinae'
- 'Bulbaspis belongs to Raphiophorinae'
- 'Carolinites belongs to Telephinidae'
- 'Carolinites angustagena is a subjective synonym of Carolinites sibiricus'
- 'Carolinites ekphymosus belongs to Carolinites'
- 'Carolinites genacinaca genacinaca belongs to Carolinites genacinaca' according to Ross 1951
- 'Carolinites genacinaca nevadensis belongs to Carolinites genacinaca' according to Hintze 1953
- 'Carolinites rugosus belongs to Carolinites'
- 'Carolinites sibiricus belongs to Carolinites' according to Chugaeva 1964
- 'Carrickia belongs to Telephinidae'
- 'Carrickiinae is an invalid subgroup of Telephinidae'
- 'Cnemidopyge belongs to Raphiophorinae'
- 'Dimastocephalus is a subjective synonym of Carolinites' according to Stubblefield 1950
- 'Dimastocephalus killaryensis is recombined as Carolinites killaryensis' according to Stubblefield 1950
- 'Edmundsonia belongs to Raphiophorinae'
- 'Endymionia belongs to Endymioniinae'
- 'Endymionia clavaria belongs to Endymionia'
- 'Endymioniidae was reranked as the subfamily Endymioniinae and belongs to Raphiophoridae'
- 'Falanaspis extensa belongs to Falanaspis'
- 'Globampyx belongs to Raphiophorinae'
- 'Globampyx trinucleoides belongs to Globampyx'
- 'Gog catillus belongs to Gog'
- 'Goniophrys belongs to Telephinidae'
- 'Kirkella declevita [misspelled as Ptyocephalus declivitus] belongs to Ptyocephalus'
- 'Lannacus is a subjective synonym of Megalaspides'
- 'Lonchodomas belongs to Raphiophorinae'
- 'Megalaspides belongs to Isotelinae'
- 'Megalaspides striatellus belongs to Megalaspides'
- 'Mendolaspis belongs to Raphiophorinae'
- 'Mendolaspis doidyx belongs to Mendolaspis'
- 'Miaopopsis belongs to Raphiophorinae'
- 'Nileus belongs to Nileidae'
- 'Nileus exarmatus belongs to Nileus' according to Tjernvik 1956
- 'Nileus exarmatus glazialis belongs to Nileus exarmatus' according to Schrank 1973
- 'Nileus exarmatus glazialis is recombined as Nileus glazialis'
- 'Nileus exarmatus lineatus belongs to Nileus exarmatus' according to Schrank 1972
- 'Nileus exarmatus lineatus is replaced by Nileus exarmatus glazialis' according to Schrank 1973
- 'Nileus exarmatus orbiculatoides belongs to Nileus exarmatus' according to Schrank 1972
- 'Nileus exarmatus orbiculatoides is recombined as Nileus orbiculatoides'
- 'Nileus glazialis costatus belongs to Nileus glazialis'
- 'Nileus orbiculatoides svalbardensis belongs to Nileus orbiculatoides'
- 'Nileus porosus belongs to Nileus'
- 'Niobe belongs to Niobinae'
- 'Niobe flabellifera belongs to Niobe'
- 'Niobe occulta belongs to Niobe'
- 'Niobinae belongs to Asaphidae'
- 'Oopsites belongs to Telephinidae'
- 'Oopsites squamosus belongs to Oopsites'
- 'Paraptychopyge belongs to Ptychopyginae'
- 'Peraspis belongs to Nileidae'
- 'Peraspis omega belongs to Peraspis'
- 'Poronileus belongs to Nileidae'
- 'Poronileus fistulosus belongs to Poronileus'
- 'Poronileus isoteloides belongs to Poronileus'
- 'Poronileus jugatus belongs to Poronileus'
- 'Poronileus vallancei belongs to Poronileus'
- 'Presbynileus belongs to Isotelinae'
- 'Presbynileus (Presbynileus) belongs to Presbynileus' according to Jaanusson 1959
- 'Presbynileus (Protopresbynileus) glaber belongs to Presbynileus (Protopresbynileus)'
- 'Protopresbynileus was reranked as Presbynileus (Protopresbynileus) and belongs to Presbynileus' according to Jaanusson 1959
- 'Ptychocephalus is corrected as Ptyocephalus and belongs to Isotelinae'
- 'Ptychopyginae belongs to Asaphidae'
- 'Pytine graia belongs to Pytine'
- 'Raphiophorinae belongs to Raphiophoridae'
- 'Raphiophorus belongs to Raphiophorinae'
- 'Raymondella belongs to Raphiophorinae'
- 'Rhombampyx rhombos belongs to Rhombampyx'
- 'Rhombampyx tragula belongs to Rhombampyx'
- 'Salteria belongs to Endymioniinae'
- 'Symphysurus belongs to Nileidae'
- 'Symphysurus arcticus belongs to Symphysurus'
- 'Telephina belongs to Telephinidae'
- 'Telephina hibernicus belongs to Telephina' according to Reed 1909
- 'Telephina hibernicus is recombined as Oopsites hibernicus'
- 'Triarthrus angelini is recombined as Bienvillia angelini'