Opinions from C. E. Resser 1935
- 'Acrocephalites americanus is recombined as Alokistocare americanus'
- 'Acrocephalites aoris belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites aoris is recombined as Alokistocare aoris'
- 'Acrocephalites aster belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites aster is recombined as Deiracephalus aster'
- 'Acrocephalites glomeratus belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites glomeratus is recombined as Modocia glomerata'
- 'Acrocephalites haynesi belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites haynesi is recombined as Bolaspis haynesi'
- 'Acrocephalites insignis belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites insignis is recombined as Acrocephalops insignis'
- 'Acrocephalites majus belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites majus is recombined as Alokistocare majus'
- 'Acrocephalites multisegmentus belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites multisegmentus is recombined as Deiracephalus multisegmentus'
- 'Acrocephalites tutus belongs to Acrocephalites' according to Walcott 1916
- 'Acrocephalites tutus is recombined as Acrocephalops tutus'
- 'Acrocephalops nitida belongs to Acrocephalops'
- 'Agraulos stator belongs to Agraulos' according to Walcott 1916
- 'Agraulos stator belongs to Agraulos' according to Walcott 1917
- 'Agraulos stator is recombined as Alokistocare stator'
- 'Alokistocare althea belongs to Alokistocare' according to Walcott 1916
- 'Alokistocare althea belongs to Alokistocare'
- 'Alokistocare georgense belongs to Alokistocare'
- 'Alokistocare labrosum belongs to Alokistocare' according to Walcott 1916
- 'Alokistocare labrosum is recombined as Bolaspis labrosa'
- 'Alokistocare packi belongs to Alokistocare'
- 'Alokistocare pomona belongs to Alokistocare' according to Walcott 1916
- 'Alokistocare pomona belongs to Alokistocare'
- 'Alokistocare stephenensis belongs to Alokistocare'
- 'Alokistocare ticida belongs to Alokistocare' according to Walcott 1916
- 'Alokistocare ticida is recombined as Bolaspis ticida'
- 'Anomocarella smithi belongs to Anomocarella' according to Walcott 1911
- 'Anomocarella smithi is recombined as Ehmania smithi'
- 'Anoria utahensis belongs to Anoria'
- 'Arionellus (Crepicephalus) oweni is recombined as Ptychoparia oweni' according to Walcott 1884
- 'Arionellus (Crepicephalus) oweni belongs to Arionellus (Crepicephalus)' according to Meek and Hayden 1861
- 'Arionellus (Crepicephalus) oweni is recombined as Modocia oweni' according to Walcott 1924
- 'Arionellus (Crepicephalus) oweni is recombined as Modocia oweni'
- 'Asaphiscus (Blainia) gregarius is recombined as Blainia gregaria'
- 'Asaphiscus calanus is recombined as Coosia calanus'
- 'Asaphiscus calenus is recombined as Glyphaspis calenus'
- 'Asaphiscus camma is recombined as Glyphaspis camma'
- 'Asaphiscus capella is recombined as Glyphaspis capella'
- 'Asaphiscus granulatus is recombined as Weeksina granulatus'
- 'Asaphiscus minor is recombined as Cedaria minor'
- 'Asaphiscus unispinus is recombined as Weeksina unispinus'
- 'Asaphiscus wheeleri belongs to Asaphiscus'
- 'Asaphiscus wheeleri belongs to Asaphiscus' according to Meek 1873
- 'Athabascia is a subjective synonym of Clavaspidella'
- 'Bathyuriscus (Poliella) caranus is recombined as Poliella caranus'
- 'Bathyuriscus (Poliella) powersi is recombined as Bathyuriscus powersi'
- 'Bathyuriscus (Poliella) sylla is recombined as Clavaspidella sylla'
- 'Bathyuriscus adaeus belongs to Bathyuriscus'
- 'Bathyuriscus anax is recombined as Clavaspidella anax'
- 'Bathyuriscus atossa belongs to Bathyuriscus'
- 'Bathyuriscus bantius is recombined as Anoria bantius'
- 'Bathyuriscus belesis is recombined as Glossopleura belesis'
- 'Bathyuriscus belus is recombined as Clavaspidella bela'
- 'Bathyuriscus bithus is recombined as Clavaspidella bithus'
- 'Bathyuriscus howelli is recombined as Clavaspidella howelli'
- 'Bathyuriscus howelli lodensis is recombined as Glossopleura lodensis'
- 'Bathyuriscus marjumensis belongs to Bathyuriscus'
- 'Bathyuriscus piedmontensis belongs to Bathyuriscus'
- 'Bathyurus haydeni belongs to Bathyurus' according to Meek 1873
- 'Bathyurus haydeni is recombined as Bathyuriscus haydeni'
- 'Bayfieldia finkelnburgi is recombined as Eurekia finkelnburgi'
- 'Blainia centerensis belongs to Blainia'
- 'Bolaspis errata belongs to Bolaspis'
- 'Bolaspis neihartensis belongs to Bolaspis'
- 'Bolaspis raymondi belongs to Bolaspis'
- 'Bornemannia prima is recombined as Bathyuriscus (Poliella) primus' according to Walcott 1916
- 'Bornemannia prima is recombined as Poliella prima'
- 'Conocephalites depressus belongs to Conocephalites' according to Shumard 1861
- 'Conocephalites depressus is recombined as Aphelaspis depressa'
- 'Conocephalites latifrons belongs to Conocephalites' according to Hall 1863
- 'Conocephalites latifrons is recombined as Idahoia latifrons'
- 'Conocephalites subcoronatus belongs to Conocephalites' according to Hall and Whitfield 1877
- 'Conocephalites subcoronatus is recombined as Alokistocare subcoronatum' according to Lorenz 1906
- 'Conocephalites subcoronatus is recombined as Alokistocare subcoronatum'
- 'Conocephalites vulcanus belongs to Conocephalites' according to Billings 1861
- 'Conocephalites vulcanus is recombined as Billingsaspis vulcanus'
- 'Conocoryphe (Ptychoparia) gallatinensis belongs to Conocoryphe (Ptychoparia)' according to Meek 1873
- 'Conocoryphe (Ptychoparia) gallatinensis is recombined as Ehmania gallatinensis'
- 'Crepicephalus was reranked as Arionellus (Crepicephalus) and belongs to Arionellus' according to Meek and Hayden 1861
- 'Crepicephalus (Loganellus) centralis is recombined as Modocia centralis'
- 'Crepicephalus (Loganellus) centralis belongs to Crepicephalus (Loganellus)' according to Whitfield 1877
- 'Crepicephalus (Loganellus) centralis belongs to Crepicephalus (Loganellus)' according to Whitfield 1880
- 'Crepicephalus (Loganellus) granulosus belongs to Crepicephalus (Loganellus)' according to Hall and Whitfield 1877
- 'Crepicephalus (Loganellus) granulosus is recombined as Dunderbergia granulosa'
- 'Crepicephalus (Loganellus) haguei is recombined as Elrathia haguei'
- 'Crepicephalus (Loganellus) maculosus belongs to Crepicephalus (Loganellus)' according to Hall and Whitfield 1877
- 'Crepicephalus (Loganellus) maculosus is recombined as Dunderbergia maculosus'
- 'Crepicephalus (Loganellus) montanensis belongs to Crepicephalus (Loganellus)' according to Whitfield 1876
- 'Crepicephalus (Loganellus) montanensis is recombined as Glyphaspis montanensis'
- 'Crepicephalus (Loganellus) simulator belongs to Crepicephalus (Loganellus)' according to Hall and Whitfield 1877
- 'Crepicephalus (Loganellus) simulator is recombined as Inouyia simulator' according to Walcott 1916
- 'Crepicephalus (Loganellus) simulator is recombined as Dunderbergia simulator'
- 'Crepicephalus augusta belongs to Crepicephalus' according to Walcott 1886
- 'Crepicephalus augusta is recombined as Kochaspis augusta'
- 'Crepicephalus cecinna belongs to Crepicephalus' according to Walcott 1917
- 'Crepicephalus cecinna is recombined as Kochaspis cecinna'
- 'Crepicephalus celer belongs to Crepicephalus' according to Walcott 1917
- 'Crepicephalus celer is recombined as Kochaspis celer'
- 'Crepicephalus chares is recombined as Kochaspis chares'
- 'Crepicephalus liliana belongs to Crepicephalus' according to Walcott 1886
- 'Crepicephalus liliana belongs to Crepicephalus' according to Walcott 1890
- 'Crepicephalus liliana is recombined as Kochaspis liliana'
- 'Crepicephalus unzia belongs to Crepicephalus' according to Walcott 1916
- 'Crepicephalus unzia is recombined as Kochaspis unzia'
- 'Crepicephalus upis belongs to Crepicephalus' according to Walcott 1916
- 'Crepicephalus upis is recombined as Kochaspis upis'
- 'Deiracephalus buttsi belongs to Deiracephalus'
- 'Dolichometopus baton is recombined as Anoria baton'
- 'Dolichometopus bessus is recombined as Anoria bessus'
- 'Dolichometopus bion is recombined as Glossopleura bion'
- 'Dolichometopus boccar belongs to Dolichometopus' according to Walcott 1916
- 'Dolichometopus boccar is recombined as Glossopleura boccar'
- 'Dolichometopus occidentalis belongs to Dolichometopus' according to Matthew 1899
- 'Dolichometopus occidentalis is recombined as Bathyuriscus occidentalis' according to Walcott 1908
- 'Dolichometopus occidentalis is recombined as Poliella occidentalis'
- 'Dunderbergia halli belongs to Dunderbergia'
- 'Ehmania walcotti belongs to Ehmania'
- 'Ehmania weedi belongs to Ehmania'
- 'Eldoradia lata belongs to Eldoradia'
- 'Glossopleura alabamensis belongs to Glossopleura'
- 'Glossopleura bosworthensis belongs to Glossopleura'
- 'Glossopleura buttsi belongs to Glossopleura'
- 'Glossopleura mckeei belongs to Glossopleura'
- 'Glossopleura mohavensis belongs to Glossopleura'
- 'Glossopleura nitida belongs to Glossopleura'
- 'Glossopleura packi belongs to Glossopleura'
- 'Glossopleura stephenensis belongs to Glossopleura'
- 'Glossopleura utahensis belongs to Glossopleura'
- 'Illaenurus dia belongs to Illaenurus' according to Walcott 1890
- 'Illaenurus dia is recombined as Nileus dia' according to Walcott 1914
- 'Illaenurus dia is recombined as Macelloura dia'
- 'Kochaspis highlandensis belongs to Kochaspis'
- 'Kochaspis nevadensis belongs to Kochaspis'
- 'Kochiella tuberculata belongs to Kochiella'
- 'Kochiella tuberculata belongs to Kochiella' according to Poulsen 1927
- 'Kochina bosworthensis belongs to Kochina'
- 'Lonchocephalus hamulus is recombined as Idahoia hamulus'
- 'Modocia berkeyi belongs to Modocia'
- 'Ogygia parabola is recombined as Glossopleura parabola'
- 'Ogygia producta is recombined as Glossopleura producta'
- 'Olenoides obrutchevi belongs to Olenoides' according to Lermonntova 1926
- 'Olenoides obrutchevi is recombined as Bathyuriscus obrutchevi'
- 'Olenopsis agnesensis belongs to Olenopsis' according to Walcott 1912
- 'Olenopsis agnesensis belongs to Olenopsis' according to Walcott 1917
- 'Olenopsis agnesensis is recombined as Alokistocare agnesensis'
- 'Olenopsis americanus is recombined as Kochina americanus'
- 'Olenopsis cleora belongs to Olenopsis' according to Walcott 1917
- 'Olenopsis cleora is recombined as Alokistocare cleora'
- 'Olenopsis crito belongs to Olenopsis' according to Walcott 1917
- 'Olenopsis crito is recombined as Kochiella crito'
- 'Poliella castlensis belongs to Poliella'
- 'Proetus (Phaeton) denticulatus is recombined as Eurekia denticulatus'
- 'Ptychaspis pustulosa belongs to Ptychaspis' according to Hall and Whitfield 1877
- 'Ptychaspis pustulosa is recombined as Dunderbergia pustulosa'
- 'Ptychoparia (Lonchocephalus) wisconsensis is recombined as Conocephalites wisconsinensis' according to Hall 1863
- 'Ptychoparia (Lonchocephalus) wisconsensis is recombined as Idahoia wisconsinensis'
- 'Ptychoparia candace belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia candace belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia candace is recombined as Elrathia candace'
- 'Ptychoparia carina belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia carina is recombined as Kochaspis carina'
- 'Ptychoparia cercops belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia cercops is recombined as Plagiura cercops'
- 'Ptychoparia charax belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia charax is recombined as Alokistocare charax'
- 'Ptychoparia gogensis belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia gogensis is recombined as Kochaspis gogensis'
- 'Ptychoparia laeviceps is recombined as Eteraspis laeviceps'
- 'Ptychoparia linnarssoni is recombined as Eldoradia linnarssoni'
- 'Ptychoparia metra belongs to Ptychoparia' according to Walcott 1890
- 'Ptychoparia metra is recombined as Meteoraspis metra'
- 'Ptychoparia piochensis is recombined as Alokistocare piochensis'
- 'Ptychoparia prospectensis is recombined as Eldoradia prospectensis'
- 'Ptychoparia pylas belongs to Ptychoparia' according to Walcott 1917
- 'Ptychoparia pylas is recombined as Elrathia pylas'
- 'Ptychoparia suada is recombined as Dunderbergia suada'
- 'Saratogia hera belongs to Saratogia' according to Walcott 1916
- 'Saratogia hera is recombined as Idahoia hera'
- 'Strotocephalus gordonensis belongs to Strotocephalus'