Opinions from R. J., Jr. Ross 1970
- 'Amphion barrandei is recombined as Pseudomera barrandei'
- 'Anomalorthis fascicostellatus belongs to Anomalorthis'
- 'Anomalorthis resoi belongs to Anomalorthis'
- 'Aporthophyla typa belongs to Aporthophyla'
- 'Archaeorthis costellata is corrected as Archaeorthis costellatus and belongs to Archaeorthis'
- 'Archaeorthis elongata is corrected as Archaeorthis elongatus and belongs to Archaeorthis'
- 'Asaphellus riojanus belongs to Asaphellus'
- 'Asaphellus venta is recombined as Aulacoparia (Aulacoparia) venta'
- 'Asaphus extans is recombined as Bathyurus extans'
- 'Asymphylotoechia nolani belongs to Asymphylotoechia'
- 'Basilicus mckeei belongs to Basilicus'
- 'Bathyurus acutus angustus belongs to Bathyurus acutus'
- 'Bathyurus extans emaciatus belongs to Bathyurus extans'
- 'Camerella nuda belongs to Camerella'
- 'Cheirurus perforator is recombined as Xystocrania perforator'
- 'Dactylogonia vespertina belongs to Dactylogonia'
- 'Desmorthis crassus belongs to Desmorthis'
- 'Dorytreta subcircularis belongs to Dorytreta'
- 'Hesperomena leptellinoidea belongs to Hesperomena'
- 'Hesperorthis matutina belongs to Hesperorthis'
- 'Hypermecaspis kolouros belongs to Hypermecaspis'
- 'Hystricurus genalatus belongs to Hystricurus'
- 'Hystricurus oculilunatus belongs to Hystricurus'
- 'Illaenus alveatus belongs to Illaenus'
- 'Isotelus spurius belongs to Isotelus'
- 'Kirkella accliva is recombined as Ptyocephalus accliva'
- 'Leiostegium goodwinensis belongs to Leiostegium'
- 'Leiostegium tyboensis belongs to Leiostegium'
- 'Leptaena ordovicica belongs to Leptaena'
- 'Leptellina occidentalis belongs to Leptellina'
- 'Lonchodomas paenepennatus belongs to Lonchodomas'
- 'Megistaspis (Ekeraspis) floweri belongs to Megistaspis (Ekeraspis)'
- 'Megistaspis (Ekeraspis) nevadensis belongs to Megistaspis (Ekeraspis)'
- 'Moxomia hecuba is recombined as Parabolinella hecuba'
- 'Opikina expatiata belongs to Opikina'
- 'Orthambonites bifurcatus belongs to Orthambonites'
- 'Orthambonites perplexus is recombined as Plectorthis perplexus'
- 'Orthidium barnesi belongs to Orthidium'
- 'Orthis lonensis is recombined as Anomalorthis lonensis'
- 'Orthis marshalli is recombined as Orthambonites marshalli'
- 'Orthis minusculus is recombined as Orthambonites minisculus'
- 'Peraspis erugata belongs to Peraspis'
- 'Perissopliomera maclachlani belongs to Perissopliomera'
- 'Plectorthis obesa belongs to Plectorthis'
- 'Protocalymene mcallisteri [misspelled as Protocalymene mcallesteri] belongs to Protocalymene'
- 'Pseudonileus willdeni [misspelled as Protopresbynileus wildeni] belongs to Protopresbynileus'
- 'Rhysostrophia nevadensis belongs to Rhysostrophia'
- 'Sphenotreta sulcata belongs to Sphenotreta'
- 'Spirifer tenuicosta belongs to Spirifer' according to d'Eichwald 1840
- 'Taphrodonta parallela belongs to Taphrodonta'
- 'Toquimia kirki belongs to Toquimia'