Opinions from J. P. Smith 1914
- 'Acrochordiceras alternans belongs to Acrochordiceras'
- 'Acrochordiceras foltzense belongs to Acrochordiceras'
- 'Acrochordiceras hyatti belongs to Acrochordiceras'
- 'Acrochordiceras inyoense belongs to Acrochordiceras'
- 'Ammonites blakei is recombined as Ceratites (Gymnotoceras) blakei'
- 'Anagymnites was reranked as Gymnites (Anagymnites) and belongs to Gymnites'
- 'Anolcites was reranked as Trachyceras (Anolcites) and belongs to Trachyceras'
- 'Arcestes (Proarcestes) hartzelli belongs to Arcestes (Proarcestes)'
- 'Arcestes gabbi is recombined as Arcestes (Proarcestes) gabbi'
- 'Arcestes perplanus is recombined as Gymnites perplanus'
- 'Atractites burckhardti belongs to Atractites'
- 'Atractites clavatulus belongs to Atractites'
- 'Atractites elegans belongs to Atractites'
- 'Atractites solidus belongs to Atractites'
- 'Balatonites hadleyi belongs to Balatonites'
- 'Balatonites kingi belongs to Balatonites'
- 'Balatonites shoshonensis belongs to Balatonites'
- 'Beyrichites dunni belongs to Beyrichites'
- 'Beyrichites falciformis belongs to Beyrichites'
- 'Beyrichites osmonti belongs to Beyrichites'
- 'Beyrichites tenuis belongs to Beyrichites'
- 'Celtites gabbi belongs to Celtites'
- 'Celtites polygyratus belongs to Celtites'
- 'Ceratites (Gymnotoceras) beckeri belongs to Ceratites (Gymnotoceras)'
- 'Ceratites (Gymnotoceras) hersheyi belongs to Ceratites (Gymnotoceras)'
- 'Ceratites (Gymnotoceras) russelli belongs to Ceratites (Gymnotoceras)'
- 'Ceratites (Gymnotoceras) spurri belongs to Ceratites (Gymnotoceras)'
- 'Ceratites (Gymnotoceras) wemplei belongs to Ceratites (Gymnotoceras)'
- 'Ceratites (Halilucites) is reassigned into Eutomoceras'
- 'Ceratites (Hollandites) belongs to Ceratites'
- 'Ceratites (Hollandites) montisbovis belongs to Ceratites (Hollandites)'
- 'Ceratites (Hollandites) organi belongs to Ceratites (Hollandites)'
- 'Ceratites (Paraceratites) burckhardti belongs to Ceratites (Paraceratites)'
- 'Ceratites (Paraceratites) clarkei belongs to Ceratites (Paraceratites)'
- 'Ceratites (Paraceratites) cricki belongs to Ceratites (Paraceratites)'
- 'Ceratites (Paraceratites) newberryi belongs to Ceratites (Paraceratites)'
- 'Ceratites (Paraceratites) taurus belongs to Ceratites (Paraceratites)'
- 'Ceratites (Paraceratites) trojanus belongs to Ceratites (Paraceratites)'
- 'Ceratites (Paraceratites) wardi belongs to Ceratites (Paraceratites)'
- 'Ceratites (Philippites) is corrected as Ceratites (Phillipites) and belongs to Ceratites'
- 'Ceratites (Phillipites) argentarius belongs to Ceratites (Phillipites)'
- 'Ceratites (Phillipites) lawsoni belongs to Ceratites (Phillipites)'
- 'Ceratites (Phillipites) ransomei belongs to Ceratites (Phillipites)'
- 'Ceratites altilis belongs to Ceratites'
- 'Ceratites applanatus belongs to Ceratites'
- 'Ceratites cornutus belongs to Ceratites'
- 'Ceratites crassicornu belongs to Ceratites'
- 'Ceratites emmonsi belongs to Ceratites'
- 'Ceratites gilberti belongs to Ceratites'
- 'Ceratites haguei belongs to Ceratites'
- 'Ceratites humboldtensis belongs to Ceratites'
- 'Ceratites karpinskyi belongs to Ceratites'
- 'Ceratites kingi belongs to Ceratites'
- 'Ceratites meeki belongs to Ceratites' according to Mojsisovics 1888
- 'Ceratites meeki is recombined as Ceratites (Gymnotoceras) meeki'
- 'Ceratites nevadanus belongs to Ceratites'
- 'Ceratites occidentalis belongs to Ceratites'
- 'Ceratites pilatus belongs to Ceratites'
- 'Ceratites rectangularis belongs to Ceratites'
- 'Ceratites rotuloides belongs to Ceratites'
- 'Ceratites spinifer belongs to Ceratites'
- 'Ceratites tenuispiralis belongs to Ceratites'
- 'Ceratites vogdesi is recombined as Ceratites (Paraceratites) vogdesi'
- 'Ceratites washburnei belongs to Ceratites'
- 'Ceratites weaveri belongs to Ceratites'
- 'Ceratites williamsi belongs to Ceratites'
- 'Columbites humboldtensis belongs to Columbites'
- 'Columbites plicatulus belongs to Columbites'
- 'Columbites spencei belongs to Columbites'
- 'Corbula blakei belongs to Corbula'
- 'Dalmatites minutus belongs to Dalmatites'
- 'Dalmatites parvus belongs to Dalmatites'
- 'Danubites halli is recombined as Tropigastrites halli'
- 'Daonella americana belongs to Daonella'
- 'Daonella lindstroemi belongs to Daonella' according to Mojsisovics 1874
- 'Daonella sanctaeanae belongs to Daonella'
- 'Dinarites bonaevistae is recombined as Cuccoceras bonaevistae'
- 'Dinarites desertorum belongs to Dinarites'
- 'Dinarites pygmaeus belongs to Dinarites'
- 'Eudiscoceras gabbi is recombined as Ceratites (Paraceratites) gabbi'
- 'Eutomoceras (Halilucites) dalli belongs to Eutomoceras (Halilucites)'
- 'Eutomoceras breweri belongs to Eutomoceras'
- 'Eutomoceras dunni belongs to Eutomoceras'
- 'Eutomoceras lahontanum belongs to Eutomoceras'
- 'Eutomoceras laubei belongs to Eutomoceras'
- 'Germanonautilus furlongi belongs to Germanonautilus'
- 'Gymnites (Anagymnites) rosenbergi belongs to Gymnites (Anagymnites)'
- 'Gymnites alexandrae belongs to Gymnites'
- 'Gymnites calli belongs to Gymnites'
- 'Gymnotoceras rotelliforme is recombined as Beyrichites rotelliformis'
- 'Halobia dubia is recombined as Daonella dubia'
- 'Hungarites fittingensis belongs to Hungarites'
- 'Hungarites yatesi belongs to Hungarites'
- 'Joannites nevadanus is recombined as Arcestes (Proarcestes) nevadanus'
- 'Lecanites crassus belongs to Lecanites'
- 'Lecanites nudus belongs to Lecanites'
- 'Lecanites parvus belongs to Lecanites'
- 'Lecanites vogdesi belongs to Lecanites'
- 'Longobardites nevadanus belongs to Longobardites'
- 'Megaphyllites septentrionalis belongs to Megaphyllites'
- 'Modiomorpha lata belongs to Modiomorpha'
- 'Modiomorpha ovata belongs to Modiomorpha'
- 'Myacites humboldtensis is recombined as Pleuromya humboldtensis'
- 'Nannites contractus belongs to Nannites'
- 'Nautilus whitneyi is recombined as Grypoceras whitneyi'
- 'Nevadites fontainei belongs to Nevadites'
- 'Nevadites humboldtensis belongs to Nevadites'
- 'Nevadites merriami belongs to Nevadites'
- 'Nevadites sinclairi belongs to Nevadites'
- 'Orthoceras campanile belongs to Orthoceras'
- 'Paraceratites was reranked as Ceratites (Paraceratites) and belongs to Ceratites'
- 'Paranannites oviformis belongs to Paranannites'
- 'Pentacrinites asteriscus belongs to Pentacrinites' according to Meek and Hayden 1858
- 'Popanoceras haugi is recombined as Popanoceras (Parapopanoceras) haugi'
- 'Posidonomya moussoni belongs to Posidonomya' according to Merian 1853
- 'Posidonomya moussoni is recombined as Daonella moussoni'
- 'Ptychites evansi belongs to Ptychites'
- 'Ptychites meeki belongs to Ptychites'
- 'Rhynchonella aequiplicata belongs to Rhynchonella'
- 'Rhynchonella altaplecta [misspelled as Rhynchonella alteplecta] belongs to Rhynchonella'
- 'Rhynchonella lingulata belongs to Rhynchonella'
- 'Rhynchopterus obesus belongs to Rhynchopterus'
- 'Sageceras gabbi belongs to Sageceras'
- 'Sibyllites louderbacki is recombined as Tropigastrites louderbacki'
- 'Spirifer homfrayi is recombined as Spiriferina homfrayi'
- 'Spiriferina alia belongs to Spiriferina' according to Hall and Whitfield 1877
- 'Spiriferina alia belongs to Spiriferina'
- 'Terebratula humboldtensis belongs to Terebratula'
- 'Tirolites pacificus belongs to Tirolites'
- 'Trachyceras (Anolcites) barberi belongs to Trachyceras (Anolcites)'
- 'Trachyceras (Anolcites) drakei belongs to Trachyceras (Anolcites)'
- 'Trachyceras (Anolcites) furlongi belongs to Trachyceras (Anolcites)'
- 'Trachyceras (Anolcites) gabbi belongs to Trachyceras (Anolcites)'
- 'Trachyceras (Anolcites) gracile belongs to Trachyceras (Anolcites)'
- 'Trachyceras (Anolcites) hyatti is recombined as Nevadites hyatti'
- 'Trachyceras (Protrachyceras) dunni belongs to Trachyceras (Protrachyceras)'
- 'Trachyceras (Protrachyceras) lahontanum belongs to Trachyceras (Protrachyceras)'
- 'Trachyceras (Protrachyceras) springeri belongs to Trachyceras (Protrachyceras)'
- 'Trachyceras americanum is recombined as Trachyceras (Protrachyceras) americanum'
- 'Trachyceras meeki is recombined as Trachyceras (Protrachyceras) meeki'
- 'Trachyceras subasperum is recombined as Trachyceras (Protrachyceras) subasperum'
- 'Tropigastrites lahontanus belongs to Tropigastrites'
- 'Tropigastrites obliterans belongs to Tropigastrites'
- 'Tropigastrites powelli belongs to Tropigastrites'
- 'Tropigastrites rothpletzi belongs to Tropigastrites'
- 'Tropigastrites trojanus belongs to Tropigastrites'
- 'Xenodiscus bittneri belongs to Xenodiscus'
- 'Xenodiscus multicameratus belongs to Xenodiscus'