Opinions from F. M. Anderson 1938
- 'Acanthoplites aegis belongs to Acanthoplites'
- 'Acanthoplites barryana belongs to Acanthoplites'
- 'Acanthoplites gardneri belongs to Acanthoplites'
- 'Acanthoplites perrini belongs to Acanthoplites'
- 'Acanthoplites spathi belongs to Acanthoplites'
- 'Acanthoplites subbigoti belongs to Acanthoplites'
- 'Acrioceras starrkingi belongs to Acrioceras'
- 'Acrioceras voyanum belongs to Acrioceras'
- 'Acroteuthis aboriginalis belongs to Acroteuthis'
- 'Acroteuthis barrana belongs to Acroteuthis'
- 'Acroteuthis divergens belongs to Acroteuthis'
- 'Acroteuthis kernensis belongs to Acroteuthis'
- 'Acroteuthis kewana belongs to Acroteuthis'
- 'Acroteuthis macarthyensis belongs to Acroteuthis'
- 'Acroteuthis mitchelli belongs to Acroteuthis'
- 'Acroteuthis onoensis belongs to Acroteuthis'
- 'Acroteuthis shastensis belongs to Acroteuthis'
- 'Acroteuthis wilcoxi belongs to Acroteuthis'
- 'Acroteuthis winslowensis belongs to Acroteuthis'
- 'Actaeonella oviformis belongs to Actaeonella'
- 'Acteon impressus is recombined as Tornatellaea impressa'
- 'Acteonina calafia belongs to Acteonina'
- 'Ammonites batesii is recombined as Lytoceras batesi'
- 'Ammonites brewerii is recombined as Beudanticeras breweri'
- 'Ammonites haydenii is recombined as Beudanticeras haydeni'
- 'Ammonites hoffmannii is recombined as Puzosia hoffmanni'
- 'Ammonites mammillatus is recombined as Douvilleiceras mammillatum'
- 'Ammonites neocomiensis is recombined as Neocomites neocomiensis'
- 'Ammonites remondii is recombined as Acanthoplites remondi'
- 'Ammonites sacya is recombined as Lytoceras (Gaudryceras) sacya'
- 'Ammonites stoliczkanus is recombined as Cheloniceras stoliczkanum'
- 'Ammonites traskii is recombined as Polyptychites traski'
- 'Ammonites whitneyi is recombined as Lytoceras (Kossmatella) whitneyi'
- 'Anahamulina vespertina belongs to Anahamulina'
- 'Anchura biangulata belongs to Anchura'
- 'Ancyloceras ajax belongs to Ancyloceras'
- 'Ancyloceras attrox belongs to Ancyloceras'
- 'Ancyloceras durrelli belongs to Ancyloceras'
- 'Ancyloceras elephas belongs to Ancyloceras'
- 'Anisomyon meekii is corrected as Anisomyon meeki and belongs to Anisomyon'
- 'Anomia senescens belongs to Anomia'
- 'Arca breweriana is recombined as Nemodon breweriana'
- 'Arca tehamaensis is recombined as Nemodon tehamaensis'
- 'Arca textrina is recombined as Nemodon textrina'
- 'Aspinoceras hamlini belongs to Aspinoceras'
- 'Astarte californica belongs to Astarte'
- 'Astarte corrugata belongs to Astarte'
- 'Astarte trapezoidalis belongs to Astarte'
- 'Atresius liratus belongs to Atresius'
- 'Aucella crassa belongs to Aucella' according to Pavlow 1907
- 'Aucella crassa belongs to Aucella'
- 'Aucella crassicollis belongs to Aucella'
- 'Aucella indigenalis belongs to Aucella'
- 'Aucella inflata belongs to Aucella' according to Toula 1888
- 'Aucella inflata belongs to Aucella'
- 'Aucella keyserlingi belongs to Aucella' according to Lahusen 1888
- 'Aucella keyserlingi belongs to Aucella'
- 'Aucella lahuseni belongs to Aucella'
- 'Aucella lahuseni belongs to Aucella' according to Pavlow 1907
- 'Aucella nuciformia belongs to Aucella' according to Pavlow 1907
- 'Aucella nuciformia is corrected as Aucella nuciformis and belongs to Aucella'
- 'Aucella piriformis belongs to Aucella' according to Lahusen 1907
- 'Aucella piriformis belongs to Aucella'
- 'Aucella solida belongs to Aucella' according to Pavlow 1907
- 'Aucella solida belongs to Aucella'
- 'Aucella terebratuloides belongs to Aucella'
- 'Aucella uncitoides belongs to Aucella' according to Pavlow 1907
- 'Aucella uncitoides belongs to Aucella'
- 'Aulacoteuthis wyntoonium belongs to Aulacoteuthis'
- 'Australiceras argus belongs to Australiceras'
- 'Avicula (Oxytoma) whiteavesi belongs to Avicula (Oxytoma)'
- 'Belemnites impressus is recombined as Acroteuthis impressa'
- 'Belemnopsis (Hibolites) diventroides belongs to Belemnopsis (Hibolites)'
- 'Belemnoteuthis (Conoteuthis) pacifica belongs to Belemnoteuthis (Conoteuthis)'
- 'Beudanticeras hulenense belongs to Beudanticeras'
- 'Bochianites paskentaensis belongs to Bochianites' according to Anderson 1933
- 'Bochianites paskentaensis belongs to Bochianites'
- 'Buchia tolmatschowi belongs to Buchia' according to Sokolov 1908
- 'Cerithium strigosum belongs to Cerithium'
- 'Cheloniceras (Procheloniceras) hindsi belongs to Cheloniceras (Procheloniceras)'
- 'Cheloniceras bradleyi belongs to Cheloniceras'
- 'Cheloniceras flenoyi belongs to Cheloniceras'
- 'Cheloniceras irregulare belongs to Cheloniceras'
- 'Cheloniceras populorum belongs to Cheloniceras'
- 'Cheloniceras reesidei belongs to Cheloniceras'
- 'Chondrophoridae belongs to Sepioidea'
- 'Cidaris tehamaensis belongs to Cidaris'
- 'Cleoniceras modestum belongs to Cleoniceras'
- 'Clisocolus indubitus belongs to Clisocolus'
- 'Conoteuthis was reranked as Belemnoteuthis (Conoteuthis) and belongs to Belemnoteuthis'
- 'Corbula filosa belongs to Corbula'
- 'Cordiera mitraeformis is recombined as Volutoderma mitraeformis'
- 'Crioceras (Ancyloceras) remondi is recombined as Hoplocrioceras remondi'
- 'Crioceras duncanense belongs to Crioceras'
- 'Crioceras latus is corrected as Crioceras latum and belongs to Crioceras'
- 'Crioceras nolani belongs to Crioceras' according to Kilian 1910
- 'Crioceras percostatus is recombined as Tropaeum percostatum'
- 'Cyprina occidentalis is recombined as Arctica occidentalis'
- 'Dentalium californicum belongs to Dentalium'
- 'Desmoceras dilleri is recombined as Puzosia dilleri'
- 'Desmoceras lecontei is recombined as Cleoniceras lecontei'
- 'Desmoceras subquadratum is recombined as Puzosia subquadrata'
- 'Desmoceras voyi belongs to Desmoceras'
- 'Dichotomites burgeri belongs to Dichotomites'
- 'Dichotomites gregerseni belongs to Dichotomites'
- 'Dichotomites tehamaensis belongs to Dichotomites'
- 'Diptychoceras laevis is corrected as Diptychoceras laeve and belongs to Diptychoceras'
- 'Discohelix planigyroides belongs to Discohelix'
- 'Douvilleiceras aurarium belongs to Douvilleiceras'
- 'Douvilleiceras restitutum belongs to Douvilleiceras'
- 'Fissurella bipunctata belongs to Fissurella'
- 'Gabbioceras was reranked as Lytoceras (Gabbioceras) and belongs to Lytoceras'
- 'Gaudryceras was reranked as Lytoceras (Gaudryceras) and belongs to Lytoceras'
- 'Glauconia hesperia belongs to Glauconia'
- 'Goniomya vespera belongs to Goniomya'
- 'Hamites imitator belongs to Hamites'
- 'Hamiticeras philadelphium belongs to Hamiticeras'
- 'Hamiticeras pilsbryi belongs to Hamiticeras'
- 'Hamulina aldersona belongs to Hamulina'
- 'Helcion granulatus belongs to Helcion'
- 'Helicancylus gabbi belongs to Helicancylus'
- 'Hemibaculites cyclopius belongs to Hemibaculites'
- 'Hemibaculites mirabilis belongs to Hemibaculites'
- 'Hemibaculites nauplius belongs to Hemibaculites'
- 'Hemibaculites neleus belongs to Hemibaculites'
- 'Hibolites was reranked as Belemnopsis (Hibolites) and belongs to Belemnopsis'
- 'Hibolites cigarroides belongs to Hibolites' according to Anderson 1933
- 'Hibolites cigarroides is recombined as Belemnopsis (Hibolites) cigarroides'
- 'Holcodiscus tehamaensis belongs to Holcodiscus'
- 'Hoplites angulatus is recombined as Berriasella angulata'
- 'Hoplites crassiplicatus is recombined as Berriasella crassiplicata'
- 'Hoplites hyatti is recombined as Berriasella hyatti'
- 'Hoplocrioceras onoense belongs to Hoplocrioceras'
- 'Hoplocrioceras wintunium belongs to Hoplocrioceras'
- 'Hoplocrioceras yollabollium belongs to Hoplocrioceras'
- 'Hypsipleura gregaria belongs to Hypsipleura'
- 'Inoceramus colonicus belongs to Inoceramus'
- 'Inoceramus elliottii is corrected as Inoceramus elliotti and belongs to Inoceramus'
- 'Inoceramus ovatoides belongs to Inoceramus'
- 'Inoceramus ovatus belongs to Inoceramus'
- 'Inoceramus piochii is recombined as Aucella piochi'
- 'Inoceramus vallejoensis belongs to Inoceramus'
- 'Jaubertella is a subjective synonym of Gabbioceras'
- 'Kossmatella was reranked as Lytoceras (Kossmatella) and belongs to Lytoceras'
- 'Leda glabra belongs to Leda'
- 'Lima multilineata belongs to Lima'
- 'Lima shastaensis is corrected as Lima shastensis and belongs to Lima'
- 'Liocium punctatum belongs to Liocium'
- 'Lucina alcatrazis belongs to Lucina'
- 'Lunatia avellana is recombined as Ampullina avellana'
- 'Lyticoceras packardi belongs to Lyticoceras'
- 'Lytoceras (Argonauticeras) belongs to Lytoceras'
- 'Lytoceras (Gabbioceras) angulatum belongs to Lytoceras (Gabbioceras)'
- 'Lytoceras (Gabbioceras) wintunium belongs to Lytoceras (Gabbioceras)'
- 'Lytoceras (Gaudryceras) neptunium belongs to Lytoceras (Gaudryceras)'
- 'Lytoceras (Kossmatella) aurarium belongs to Lytoceras (Kossmatella)'
- 'Lytoceras (Kossmatella) gainesi belongs to Lytoceras (Kossmatella)'
- 'Lytoceras (Saturnoceras) belongs to Lytoceras'
- 'Lytoceras (Saturnoceras) saturnale belongs to Lytoceras (Saturnoceras)'
- 'Lytoceras argonautarum is recombined as Lytoceras (Argonauticeras) argonautarum'
- 'Lytoceras traski belongs to Lytoceras'
- 'Melchiorites indigenes belongs to Melchiorites'
- 'Melchiorites shastensis belongs to Melchiorites'
- 'Modiola major is recombined as Modiolus major'
- 'Modiolus (Volsella) henryi belongs to Modiolus (Volsella)'
- 'Modiolus (Volsella) onoensis belongs to Modiolus (Volsella)'
- 'Modiolus stantoni belongs to Modiolus'
- 'Myoconcha americana belongs to Myoconcha'
- 'Nautilus (Cymatoceras) carlottensis is recombined as Nautilus charlottensis'
- 'Nautilus averilli belongs to Nautilus'
- 'Nautilus gabbi belongs to Nautilus'
- 'Neithea grandicosta belongs to Neithea'
- 'Neocomites russelli belongs to Neocomites'
- 'Neocomites stippi belongs to Neocomites'
- 'Neocraspedites aguila belongs to Neocraspedites'
- 'Neocraspedites rectoris belongs to Neocraspedites'
- 'Neocraspedites signalis belongs to Neocraspedites'
- 'Neocraspedites wilcoxi belongs to Neocraspedites'
- 'Neohibolites fontinalis belongs to Neohibolites'
- 'Neptunea perforata is recombined as Paladmete perforata'
- 'Nerita deformis belongs to Nerita'
- 'Nucula gabbi belongs to Nucula'
- 'Olcostephanus (Polyptychites) trichotomus is recombined as Dichotomites trichotomus'
- 'Olcostephanus (Simbirskites) mutabilis is recombined as Dichotomites mutabilis'
- 'Opis californica belongs to Opis'
- 'Opis shastalis belongs to Opis'
- 'Ostrea indigena belongs to Ostrea'
- 'Oxytropidoceras packardi belongs to Oxytropidoceras'
- 'Pachydiscus merriami is recombined as Desmoceras (Latidorsella) merriami'
- 'Pachydiscus sacramenticus is recombined as Sonneratia sacramentica'
- 'Panopaea concentrica is recombined as Panope concentrica'
- 'Panope shastacola belongs to Panope'
- 'Panope subaequilateralis belongs to Panope'
- 'Parahoplites dallasi belongs to Parahoplites'
- 'Parahoplites macfarlandi belongs to Parahoplites'
- 'Parahoplites scharfi belongs to Parahoplites'
- 'Parahoplites stantoni belongs to Parahoplites'
- 'Parahoplitoides cerrosensis belongs to Parahoplitoides'
- 'Parahoplitoides seniloides belongs to Parahoplitoides'
- 'Parahoplitoides shoupi belongs to Parahoplitoides'
- 'Pecten californicus belongs to Pecten'
- 'Pecten complexicosta belongs to Pecten'
- 'Pecten operculiformis is recombined as Syncyclonema operculiformis'
- 'Pectunculus ovatus is recombined as Glycymeris ovatus'
- 'Pentacrinus tehamaensis belongs to Pentacrinus'
- 'Periplomya reddingensis belongs to Periplomya'
- 'Periplomya trinitensis belongs to Periplomya'
- 'Pholadomya altumbonata belongs to Pholadomya'
- 'Pholadomya clementina belongs to Pholadomya'
- 'Pholadomya distorta belongs to Pholadomya'
- 'Pholadomya hulenana belongs to Pholadomya'
- 'Pholadomya russelli belongs to Pholadomya'
- 'Phylloceras aldersoni belongs to Phylloceras'
- 'Phylloceras myrtlense belongs to Phylloceras'
- 'Phylloceras occidentale belongs to Phylloceras'
- 'Phylloceras onoensis belongs to Phylloceras'
- 'Phylloceras oregonense belongs to Phylloceras'
- 'Phylloceras sextoni belongs to Phylloceras'
- 'Phylloceras shastalense belongs to Phylloceras'
- 'Phylloceras theresae belongs to Phylloceras'
- 'Phylloceras umpquanum belongs to Phylloceras'
- 'Pinna equivillana belongs to Pinna'
- 'Pinna pontica belongs to Pinna'
- 'Pleuromya papyracea belongs to Pleuromya'
- 'Pleurotomaria californica belongs to Pleurotomaria'
- 'Plicatula variata belongs to Plicatula'
- 'Polyptychites hesperius belongs to Polyptychites'
- 'Potamides diadema belongs to Potamides'
- 'Procheloniceras was reranked as Cheloniceras (Procheloniceras) and belongs to Cheloniceras'
- 'Pseudocrioceras stentor belongs to Pseudocrioceras'
- 'Ptiloteuthis belongs to Chondrophoridae'
- 'Ptiloteuthis foliatus belongs to Ptiloteuthis'
- 'Ptychoceras aequicostatus is recombined as Hamiticeras aequicostatum'
- 'Ptychoceras natrice belongs to Ptychoceras'
- 'Pulchellia popenoei belongs to Pulchellia'
- 'Puzosia (Latidorsella) is reassigned into Desmoceras'
- 'Puzosia aldersona belongs to Puzosia'
- 'Puzosia buenaventura belongs to Puzosia'
- 'Puzosia diadema belongs to Puzosia'
- 'Puzosia jimboi belongs to Puzosia'
- 'Puzosia onona belongs to Puzosia'
- 'Puzosia reesidei belongs to Puzosia'
- 'Puzosia weaveri belongs to Puzosia'
- 'Rhynchonella densleonis is recombined as Terebratella densleonis'
- 'Rhynchonella whiteana is recombined as Terebratella whiteana'
- 'Ringinella polita is recombined as Acteon politus'
- 'Rostellaria bicarinata is recombined as Tessarolax bicarinata'
- 'Sepiida [misspelled as Sepioidea] belongs to Cephalopoda'
- 'Shasticrioceras hesperum belongs to Shasticrioceras'
- 'Shasticrioceras inflatum belongs to Shasticrioceras'
- 'Shasticrioceras poniente belongs to Shasticrioceras'
- 'Shasticrioceras whitneyi belongs to Shasticrioceras'
- 'Shastoceras belongs to Ancyloceratidae'
- 'Shastoceras behemoth belongs to Shastoceras'
- 'Shastoceras californicum belongs to Shastoceras'
- 'Shastoceras shastense belongs to Shastoceras'
- 'Shastoceras ventricosum belongs to Shastoceras'
- 'Silesites puzosiaformis belongs to Silesites'
- 'Simbirskites broadi belongs to Simbirskites'
- 'Sonneratia crossi belongs to Sonneratia'
- 'Sonneratia mulleri belongs to Sonneratia'
- 'Sonneratia perrinsmithi belongs to Sonneratia'
- 'Sonneratia rogersi belongs to Sonneratia'
- 'Sonneratia stantoni belongs to Sonneratia'
- 'Sonneratia taffi belongs to Sonneratia'
- 'Spiticeras serpentinum belongs to Spiticeras' according to Burckhardt 1912
- 'Spondylus fragilis belongs to Spondylus'
- 'Steueroceras jenkinsi is recombined as Neocomites jenkinsi'
- 'Subastieria chanchelula belongs to Subastieria'
- 'Tellina (Arcopagia) tehama belongs to Tellina (Arcopagia)'
- 'Terebratella averilli belongs to Terebratella'
- 'Terebratella ovula belongs to Terebratella'
- 'Terebratella whitneyi is recombined as Rhynchonella whitneyi'
- 'Terebratula belongs to Terebratulidae'
- 'Terebratula durrelli belongs to Terebratula'
- 'Terebratula hannana belongs to Terebratula'
- 'Thurmannia jupiter belongs to Thurmannia'
- 'Thurmannia paskentae belongs to Thurmannia'
- 'Toxoceras cornucapri belongs to Toxoceras'
- 'Trigonia kayana belongs to Trigonia'
- 'Turbo festivus belongs to Turbo'
- 'Turbo morganensis belongs to Turbo'
- 'Turbo trilineatus belongs to Turbo'
- 'Turbo wilburensis belongs to Turbo'
- 'Turnus gregarius belongs to Turnus'
- 'Turnus plenus belongs to Turnus'
- 'Venus collinium belongs to Venus'
- 'Venus corella belongs to Venus'
- 'Volsella was reranked as Modiolus (Volsella) and belongs to Modiolus'