Opinions from A. Williams 1962
- 'Acrothele medioradiata is recombined as Schizotreta medioradiata'
- 'Aegiria was reranked as Chonetoidea (Aegiria) and belongs to Chonetoidea' according to Reed 1935
- 'Anoptambonites belongs to Leptelloidinae'
- 'Aulidospira belongs to Aulidospiridae'
- 'Aulidospira trippi belongs to Aulidospira'
- 'Aulidospiridae belongs to Spiriferacea'
- 'Bellimurina tenuicorrugata belongs to Bellimurina'
- 'Bilobia etheridgei acuta belongs to Bilobia etheridgei'
- 'Bimuria buttsi belongs to Bimuria'
- 'Bimuria perrugata belongs to Bimuria' according to Reed 1945
- 'Bimuria perrugata is recombined as Christiania perrugata'
- 'Bimuria youngiana recta belongs to Bimuria youngiana'
- 'Camarella conybearei is recombined as Oligorhynchia conybearei'
- 'Camerella minuta belongs to Camerella'
- 'Catazyga arcana belongs to Catazyga'
- 'Christiania sulcata belongs to Christiania'
- 'Christiania tenuicincta bilobata is recombined as Christiania bilobata'
- 'Cliftonia andersoni is recombined as Oxoplecia andersoni'
- 'Conotreta conoidea belongs to Conotreta'
- 'Craniops pararia belongs to Craniops'
- 'Craspedelia gabata belongs to Craspedelia'
- 'Craspedelia marginata belongs to Craspedelia'
- 'Cristiferina cristata belongs to Cristiferina'
- 'Cybele balclatchiensis belongs to Cybele' according to Reed 1914
- 'Cyclospira diversa is recombined as Protozyga diversa'
- 'Cyclospira longa belongs to Cyclospira'
- 'Cyphomena homostriata indiscissa belongs to Cyphomena homostriata'
- 'Dalmanella cheesemani belongs to Dalmanella'
- 'Diambonia anatoli belongs to Diambonia'
- 'Diorthelasma parvum belongs to Diorthelasma'
- 'Discina balcletchiensis belongs to Discina' according to Davidson 1883
- 'Discina balcletchiensis is recombined as Paterula balclatchiensis'
- 'Doleroides tennesseensis belongs to Doleroides'
- 'Drepanorhyncha calva belongs to Drepanorhyncha'
- 'Elliptoglossa rotundata belongs to Elliptoglossa'
- 'Eoplectodonta semirugata plicata belongs to Eoplectodonta semirugata'
- 'Epacroplecia belongs to Triplesiidae'
- 'Eremotoechia silicica belongs to Eremotoechia'
- 'Fardenia scalena belongs to Fardenia'
- 'Gacella belongs to Orthotetidae'
- 'Gacella insolita belongs to Gacella'
- 'Gacella ponderosa belongs to Gacella'
- 'Glyptambonites glyptus belongs to Glyptambonites'
- 'Glyptomena trippi belongs to Glyptomena'
- 'Hemipronites carrickensis is recombined as Fascifera carrickensis'
- 'Pionodema thomsoni is a subjective synonym of Pionodema girvanensis'
- 'Hemipronites thomsoni inconstans is recombined as Laticrura inconstans'
- 'Hemithyris nasuta is recombined as Orthorhynchuloides nasuta'
- 'Hemithyris nasuta belongs to Hemithyris' according to McCoy 1852
- 'Hesperorthis australis exitis belongs to Hesperorthis australis'
- 'Hyattidina sulcata belongs to Hyattidina'
- 'Isophragma extensum belongs to Isophragma'
- 'Isophragma extensum tricostatum belongs to Isophragma extensum'
- 'Laticrura pionodema belongs to Laticrura'
- 'Leangella discuneata is recombined as Diambonia discuneata'
- 'Leangella hamari belongs to Leangella'
- 'Leptaena diademata belongs to Leptaena'
- 'Leptaena etheridgei belongs to Leptaena' according to Davidson 1883
- 'Leptaena etheridgei is recombined as Bilobia etheridgei'
- 'Leptaena grayae is recombined as Anoptambonites grayae'
- 'Leptaena homostriata is recombined as Cyphomena homostriata'
- 'Leptaena infrunita belongs to Leptaena'
- 'Leptaena llandeiloensis belongs to Leptaena' according to Davidson 1883
- 'Leptaena llandeiloensis is recombined as Leptellina llandeiloensis'
- 'Leptaena ordovicica belongs to Leptaena'
- 'Leptaena sericea restricta is recombined as Sowerbyella restricta' according to Hede 1951
- 'Leptaena strandi belongs to Leptaena'
- 'Leptaena transversalis youngiana belongs to Leptaena transversalis' according to Davidson 1870
- 'Leptaena transversalis youngiana is recombined as Leptaena youngiana' according to Davidson 1883
- 'Leptaena transversalis youngiana is recombined as Bimuria youngiana'
- 'Leptella pseudoretroflexa is recombined as Isophragma pseudoretroflexum'
- 'Leptellina rhacta belongs to Leptellina'
- 'Leptellina semilunata belongs to Leptellina'
- 'Lingula amabilis is recombined as Lingulella amabilis'
- 'Lingula brevis angustior is recombined as Lingulella angustior'
- 'Lingula pseudoquadrata belongs to Lingula' according to Reed 1917
- 'Lingula pseudoquadrata is recombined as Pseudolingula pseudoquadrata'
- 'Lingulasma ardmillanense is recombined as Glyptoglossa ardmillanensis'
- 'Lingulasma pulcherrimum is recombined as Glossella pulcherrima'
- 'Lingulasma quaestor is recombined as Lingulella quaestor'
- 'Metacamarella is corrected as Metacamerella and belongs to Brevicameridae'
- 'Micromitra (Paterina) davidsoni is recombined as Conotreta davidsoni'
- 'Microtrypa cassata belongs to Microtrypa'
- 'Mimella globularis belongs to Mimella'
- 'Mjoesina rugata belongs to Mjoesina'
- 'Mjoesina rugata plana belongs to Mjoesina rugata'
- 'Multicostella plena belongs to Multicostella'
- 'Nicolella strasburgensis belongs to Nicolella'
- 'Nothorthis tarda lata belongs to Nothorthis tarda'
- 'Obolellina dixonensis belongs to Obolellina'
- 'Obolus audax belongs to Obolus'
- 'Obolus maccullochi belongs to Obolus'
- 'Oligorhynchia bifurcata belongs to Oligorhynchia'
- 'Orbiculoidea stincharensis belongs to Orbiculoidea'
- 'Orthambonites parvicrassicostatus belongs to Orthambonites'
- 'Orthambonites tenuicostatus belongs to Orthambonites'
- 'Orthis (Dalmanella) federata is recombined as Dalmanella federata'
- 'Orthis (Dalmanella) testudinaria gracilis is recombined as Eremotrema gracilis'
- 'Orthis (Dinorthis) flabellulum carrickensis is recombined as Dinorthis carrickensis'
- 'Orthis (Hebertella) bellatrix is recombined as Taphrorthis bellatrix'
- 'Orthis (Plectorthis) duftonensis belongs to Orthis (Plectorthis)' according to Reed 1910
- 'Orthis (Plectorthis) duftonensis is recombined as Dolerorthis duftonensis'
- 'Orthis (Plectorthis) subfissicosta is recombined as Cyrtonotella subfissicostata'
- 'Orthis (Plectorthis) subplicatella is recombined as Orthambonites subplicatellus'
- 'Orthis balclatchiensis belongs to Orthis' according to Davidson 1883
- 'Orthis balclatchiensis is recombined as Glyptorthis balclatchiensis'
- 'Orthis calligramma craigensis is recombined as Hesperorthis craigensis'
- 'Orthis confinis belongs to Orthis' according to Salter 1848
- 'Orthis confinis is recombined as Valcourea confinis'
- 'Orthis expansa concentrica is recombined as Macrocoelia concentrica'
- 'Orthis girvanensis belongs to Orthis' according to Davidson 1868
- 'Orthis girvanensis is recombined as Pionodema girvanensis'
- 'Orthis kilbuchoensis belongs to Orthis' according to Davidson 1883
- 'Orthis kilbuchoensis is recombined as Palaeostrophomena kilbuchoensis'
- 'Orthis lapworthi belongs to Orthis' according to Davidson 1883
- 'Glyptorthis lapworthi is a subjective synonym of Glyptorthis balclatchiensis'
- 'Orthis playfairi is recombined as Orthambonites playfairi'
- 'Orthis rankini belongs to Orthis' according to Davidson 1883
- 'Orthis rankini is recombined as Dolerorthis rankini'
- 'Orthis scotica belongs to Orthis' according to McCoy 1852
- 'Orthis scotica is recombined as Plectorthis scotica'
- 'Orthorhynchuloides belongs to Orthorhynchulidae'
- 'Oslomena is a subjective synonym of Glyptomena'
- 'Palaeostrophomena angulata belongs to Palaeostrophomena'
- 'Parastrophia thraivensis is recombined as Parastrophinella thraivensis'
- 'Parastrophia youngi is recombined as Parastrophinella youngi'
- 'Paucicrura eximia belongs to Paucicrura'
- 'Paucicrura sila belongs to Paucicrura'
- 'Paurorthis fasciculata belongs to Paurorthis'
- 'Paurorthis longa belongs to Paurorthis'
- 'Philhedra playfairi belongs to Philhedra'
- 'Phragmorthis buttsi belongs to Phragmorthis'
- 'Platystrophia scotica belongs to Platystrophia'
- 'Plectambonites quinquecostata balclatchiensis is recombined as Anisopleurella balclatchiensis'
- 'Plectambonites sericea conspicua is recombined as Eoplectodonta conspicua'
- 'Sericoidea craigensis is a subjective synonym of Sericoidea restricta'
- 'Plectambonites sericea craigensis is recombined as Leptelloidea craigensis' according to Jones 1928
- 'Plectambonites sericea craigensis is recombined as Chonetoidea (Aegiria) craigensis' according to Reed 1935
- 'Plectambonites sericea semirugata is recombined as Eoplectodonta semirugata'
- 'Plectorthis ardmillanensis is recombined as Orthambonites ardmillanensis'
- 'Plectorthis australis belongs to Plectorthis'
- 'Porambonites acutiplicata belongs to Porambonites'
- 'Proetus vetulus belongs to Proetus' according to Reed 1935
- 'Protozyga carrickensis is recombined as Cyclospira carrickensis'
- 'Protozyga perplexa belongs to Protozyga'
- 'Protozyga rotunda belongs to Protozyga'
- 'Ptychoglyptus valdari belongs to Ptychoglyptus'
- 'Ptychoglyptus virginiensis belongs to Ptychoglyptus'
- 'Ptychopleurella rectangulata laciniata belongs to Ptychopleurella rectangulata'
- 'Rafinesquina (Playfairia) deltoidea multicorrugata is recombined as Dactylogonia multicorrugata'
- 'Rafinesquina brumalis is recombined as Glyptomena brumalis'
- 'Rafinesquina expansa macallumi is recombined as Macrocoelia macallumi'
- 'Rafinesquina girvanensis belongs to Rafinesquina' according to Salmon 1942
- 'Rafinesquina girvanensis is recombined as Playfairia girvanensis' according to Reed 1945
- 'Rafinesquina girvanensis is recombined as Glyptomena girvanensis'
- 'Rafinesquina insidiosa belongs to Rafinesquina'
- 'Rafinesquina planulata belongs to Rafinesquina'
- 'Remopleurides barrandei is recombined as Robergia barrandei'
- 'Reuschella americana belongs to Reuschella'
- 'Rhynchocamera anceps belongs to Rhynchocamera' according to Reed 1944
- 'Rhynchocamera anceps is recombined as Parastrophina anceps'
- 'Rhynchonella balclatchiensis belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella balclatchiensis is recombined as Parastrophina balclatchiensis'
- 'Rhynchonella cuneatella is recombined as Idiospira cuneatella'
- 'Rhynchonella cuneatella belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella girvaniensis belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella lapworthi belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella lapworthi is recombined as Rostricellula lapworthi'
- 'Rhynchonella peachi belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella peachi is recombined as Camerella peachi'
- 'Rhynchonella scotica belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella scotica is recombined as Parastrophina scotica'
- 'Rhynchonella subborealis belongs to Rhynchonella' according to Davidson 1883
- 'Rhynchonella subborealis is recombined as Oxoplecia subborealis'
- 'Rhynchonella thomsoni belongs to Rhynchonella' according to Davidson 1868
- 'Rhynchonella thomsoni is recombined as Idiospira thomsoni'
- 'Rhynchotreta ardmillanensis is recombined as Rostricellula ardmillanensis'
- 'Scaphorthis virginiensis belongs to Scaphorthis'
- 'Scenidium lewisi craigensis is recombined as Skenidioides craigensis'
- 'Schizambon cuneatum cavatum belongs to Schizambon cuneatum'
- 'Sericoidea abdita belongs to Sericoidea'
- 'Siphonotreta scotica belongs to Siphonotreta' according to Davidson 1877
- 'Siphonotreta scotica is recombined as Schizambon scoticum'
- 'Sowerbyella elusa belongs to Sowerbyella'
- 'Sowerbyella varicostellata belongs to Sowerbyella'
- 'Stricklandinia balclatchiensis belongs to Stricklandinia' according to Davidson 1883
- 'Stricklandinia balclatchiensis is recombined as Metacamerella balclatchiensis'
- 'Stropheodonta (Leptostrophia) subfilosa is recombined as Palaeostrophomena subfilosa'
- 'Stropheodonta nicholsoni is recombined as Cyrtonotella nicholsoni'
- 'Strophomena deficiens belongs to Strophomena'
- 'Strophomena imbrex semiglobosina belongs to Strophomena imbrex' according to Davidson 1870
- 'Strophomena imbrex semiglobosina belongs to Strophomena imbrex' according to Davidson 1883
- 'Strophomena imbrex semiglobosina is recombined as Dactylogonia semiglobosina'
- 'Taphrorthis aspera belongs to Taphrorthis'
- 'Taphrorthis peculiaris belongs to Taphrorthis' according to Cooper 1956
- 'Taphrorthis peculiaris belongs to Taphrorthis'
- 'Titanambonites incertus belongs to Titanambonites'
- 'Trematis melliflua belongs to Trematis'
- 'Triplecia craigensis is recombined as Triplesia craigensis'
- 'Triplesia grayiae belongs to Triplesia' according to Davidson 1870
- 'Triplesia grayiae is recombined as Epacroplecia grayiae'
- 'Xenambonites revelatus belongs to Xenambonites'
- 'Xenambonites undosus belongs to Xenambonites'
- 'Zygospira orbis belongs to Zygospira'