List of the Paleozoic life of California

{{Compact TOC}}

• †Acanthopecten
• †Acidiphorus
• †Acidiphorus hesperia
• †Advenella
• †Advenella bifurcata
• †Agathiceras
• †Alaskospira
• †Alaskospira dunbari – or unidentified comparable form
• †Albertella
• †Albertella longwelli
• †Alitaria – tentative report
• †Allosaccus – tentative report
• †Alokistocare
• †Alokistocarella
• †Alokistocarella brighamensis – or unidentified comparable form
• †Amblysiphonella
• †Amblysiphonella grossa
• †Amblysiphonelloides
• †Amblysiphonelloides reticulata
• †Amblysiphonelloides tubulara
• †Ambocoelia – tentative report
• †Amecephalus
• †Amecephalus arrojosensis
• †Ampyx – tentative report
• †Ampyx
• †Ampyx compactus
• †Anidanthus
• †Anidanthus shastensis – type locality for species
• †Annuliconcha
• †Anomalorthis
• †Anoptambonites
• †Anoptambonites myiomorpheus – type locality for species
• †Anoptambonites myriomorpheus
• †Antiquatonia
• †Apatolichas
• †Arceodomus
• †Arceodomus langenheimi – type locality for species
• †Archaeoscyphia
• †Archaeoscyphia mazourkaensis – type locality for species
• †Arcullina
• †Arcullina polaris – or unidentified related form
• †Arcuolenellus
• †Arcuolenellus megafrontalis – or unidentified comparable form
• File:Large Aspidella.jpg]] †Aspidella – tentative report
• †Aspidella terranovica
• †Astartella
• †Atrypa
• †Atrypa reticularis
• †Atrypella
• †Atrypella tenuis – or unidentified comparable form
• †Atrypoidea – tentative report
• †Aulophyllum – tentative report
• †Austinella
• †Austinella kankakensis – or unidentified related form
• †Austinella kankakesis – or unidentified related form
• File:Aviculopecten subcardiformis01.JPG]] †Aviculopecten
• †Aviculopecten dissimilis
• †Aviculopecten fimbriatus
• †Aviculopecten occidentalis – or unidentified comparable form

{{Compact TOC}}

• †Bakevellia
• †Bathymyonia
• †Bathymyonia nevadensis – or unidentified comparable form
• †Bayhaium
• †Bayhaium merriamorum
• †Bayhaium virginiae – type locality for species
• †Bellefontia
• †Beraunia
• †Beraunia bifrons – or unidentified comparable form
• †Bicarina
• †Bicarina petilitornata
• †Biformispira – type locality for genus
• †Biformispira isaacsoni – type locality for species
• †Bighornia
• †Bimuria
• †Blastoidocrinus
• †Blastoidocrinus carchariaedens – or unidentified comparable form
• †Bolbolenellus
• †Bolbolenellus brevispinus
• †Bolbolenellus euryparia
• †Bonnia
• †Boucotspira – type locality for genus
• †Boucotspira fimbriata – type locality for species
• †Brachyprion
• †Brachyprion seretensis – or unidentified comparable form
• File:Bristolia mohavensis 2x CRF.jpg]] †Bristolia
• †Bristolia anteros
• †Bristolia brachyomma
• †Bristolia bristolensis
• †Bristolia fragilis
• †Bristolia insolens
• †Bristolia mohavensis
• †Bryorhynchus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Bryorhynchus bisulcatum
• †Bumastus
• †Buxtonia
• †Buxtonia scabriculoides
• †Buxtonia websteri – or unidentified comparable form

{{Compact TOC}}

• †Calycocoelia
• †Calycocoelia typicalis – type locality for species
• File:Calymene clavicula dorsal.jpg]] †Calymene
• †Camarotoechia – tentative report
• †Cancrinella
• †Cancrinella phosphatica
• †Cancrinella undata
• †Carolinites
• †Carolinites genacinaca
• †Carolinites sibiricus
• †Chalaroschwagerina
• †Chalaroschwagerina inflata – type locality for species
• †Chalaroschwagerina obesa – type locality for species
• †Chalaroschwagerina pulchra – type locality for species
• †Chalaroschwagerina tumentis – type locality for species
• †Cheilocephalus
• †Chonetes
• †Chonetinella
• †Choristitella
• †Cladopora
• †Clavicosta – tentative report
• †Cleiothyridina
• †Clelandia
• †Clelandia aspina
• †Clelandia bispina
• †Cliefdenella
• †Cliefdenella alaskaensis
• †Clisiophyllum
• †Clisiophyllum gabbi
• †Clisiophyllum oweni – type locality for species
• File:Compositafossil.jpg]] †Composita
• †Composita grandis – or unidentified comparable form
• †Composita subtilita – or unidentified comparable form
• †Conchidium
• †Conchidium biloculare – or unidentified comparable form
• †Conocardium
• †Cordillerastraea
• †Cordillerastraea inyoensis – type locality for species
• †Cornwallatia
• †Cornwallatia tabularia
• †Corymbospongia
• †Corymbospongia adnata
• †Corymbospongia mica
• †Corymbospongia perforata
• †Costispinifera – report made of unidentified related form or using admittedly obsolete nomenclature
• †Costispinifera costata – tentative report
• †Crenulosepta
• †Crenulosepta delicata – type locality for species
• †Crenulosepta fusiformis – type locality for species
• †Crenulosepta inyoensis – type locality for species
• †Crenulosepta rossi – type locality for species
• †Crenulosepta wahlmani – type locality for species
• †Crurithyris
• File:Cruziana Brallier Harrell Devonian.jpg]] †Cruziana
• †Cuniculinella
• †Cuniculinella acuta – type locality for species
• †Cuniculinella ampla – type locality for species
• †Cuniculinella calx
• †Cuniculinella extensa – type locality for species
• †Cuniculinella fusiformis – type locality for species
• †Cuniculinella mojavensis – type locality for species
• †Cuniculinella munda – type locality for species
• †Cuniculinella parva – type locality for species
• †Cuniculinella solita – type locality for species
• †Cuniculinella tumida – type locality for species
• †Cuniculinella ventricosa – type locality for species
• †Cyathactis
• †Cyathactis gazellensis – type locality for species
• †Cybelurus
• File:Cyclolobidae - Cyclolobus walkeri.JPG]] †Cyclolobus
• †Cyclolobus walkeri
• †Cyclonema
• †Cyclonema bilix – or unidentified comparable form
• †Cymbidium
• †Cyrtina
• †Cystiphyllum
• †Cystothalamiella
• †Cystothalamiella craticula
• †Cystothalamiella ducta
• †Cystothalamiella tuboides

{{Compact TOC}}

• File:Daguinaspis sp CRF.jpeg]] †Daguinaspis
• †Dalejina
• †Dalmanella
• †Dalmanophyllum
• †Dalmanophyllum dalmani – or unidentified comparable form
• †Darwasophyllum – tentative report
• †Deacheospira
• †Deacheospira hotzi – type locality for species
• †Deltopecten – tentative report
• †Derbyia
• †Diacanthaspis
• †Dicellograptus
• †Dicoelosia
• †Dicoelosia conspicua – or unidentified related form
• †Dicoelosia jonesridgenesis
• †Dicoelosia jonesridgensis
• †Dictyoclostus – report made of unidentified related form or using admittedly obsolete nomenclature
• File:Didymograptus murchisoni small.jpg]] †Didymograptus
• †Didymograptus protobifidus
• †Dimeropygiella
• †Dimeropygiella caudanodosa
• †Diochthofera
• †Diochthofera conspicua
• †Diplanus
• †Diplanus stanleyi
• †Diplichnites
• †Discomyorthis
• †Discotropis – tentative report
• †Dolerorthis
• †Donaldiella
• †Donaldiella derwiduii – or unidentified comparable form
• †Dorsoscyphus
• †Dorsoscyphus johnsoni
• †Durhamina
• †Durhamina kenneyi – type locality for species
• †Dyticospirifer

{{Compact TOC}}

• †Eccyliopterus
• †Eccyliopterus regularis – or unidentified related form
• †Echinauris
• †Echinauris subhorrida
• †Echinoconchus
• †Echinoconchus punctatus
• †Ectenonotus
• †Ectenonotus raymondi – or unidentified comparable form
• †Ectenonotus westoni – or unidentified comparable form
• †Ectenonotus whittingtoni
• †Ectomaria
• †Ectomaria callahanensis – type locality for species
• †Ectomaria prisca
• †Elasmothyris
• †Elasmothyris limata – type locality for species
• †Encrinurus
• File:Endoceras.JPG]] †Endoceras – tentative report
• †Enigmalites
• †Enigmalites roberti – type locality for species
• †Eofletcheria
• †Eomarginifera
• †Eoparafusulina
• †Eoparafusulina alta – type locality for species
• †Eoparafusulina brevis – type locality for species
• †Eoparafusulina certa – type locality for species
• †Eoparafusulina contracta – type locality for species
• †Eoparafusulina cylindrica – type locality for species
• †Eoparafusulina depressa – type locality for species
• †Eoparafusulina gracilis
• †Eoparafusulina linearis
• †Eoparafusulina minuta – type locality for species
• †Eoparafusulina modica – type locality for species
• †Eoparafusulina nitida – type locality for species
• †Eoparafusulina ovata – type locality for species
• †Eoparafusulina parva – type locality for species
• †Eoparafusulina potterensis – type locality for species
• †Eoparafusulina proba – type locality for species
• †Eoparafusulina regularis – type locality for species
• †Eoparafusulina rotunda – type locality for species
• †Eoparafusulina spissa – type locality for species
• †Eoparafusulina tarda – type locality for species
• †Eoparafusulina tenuitheca – type locality for species
• †Eoparafusulina thompsoni
• †Eotomaria
• †Eotomaria perryi – type locality for species
• †Epitomyonia
• †Epitomyonia recilina
• †Epitomyonia relicina
• †Eridmatus
• †Eridmatus texanus – or unidentified comparable form
• †Eridorthis
• †Eripnifera – type locality for genus
• †Eripnifera praecipitis – type locality for species
• †Etheripecten
• †Euconospira
• †Eunema
• †Eunema strigillatum – or unidentified comparable form
• †Euomphalopterus – tentative report
• File:Euomphalus fossil cropped.png]] †Euomphalus
• †Eurogrewingkia
• †Eurogrewingkia penobscotensis
• †Eusphairica – type locality for genus
• †Eusphairica distubula – type locality for species

{{Compact TOC}}

• File:Fallotaspis longa.png]] †Fallotaspis
• †Favosites
• †Fenestella
• †Fieldaspis
• †Fluctuaria
• †Fomichevella
• †Fomichevella major – or unidentified comparable form
• †Fomichevella nevadensis

{{Compact TOC}}

• †Gallatinospongia
• †Gallatinospongia conica
• †Girtyocoelia
• †Girtyocoelia epiporata
• †Girtyocoelia tubula
• †Glassia – tentative report
• †Globonema
• †Globonema niota – or unidentified comparable form
• †Glossopleura
• †Glossopleura lodensis
• †Glossopleura walcotti
• †Glyptorthis
• File:Gogia ojenai.jpg]] †Gogia
• †Gogia ojenai – type locality for species
• †Goniostropha
• †Goniostropha bachelieri – or unidentified comparable form
• †Gshelia
• †Gshelia americana – type locality for species
• †Gypidula

{{Compact TOC}}

• †Halysites
• †Heintzella
• †Heintzella applegatei – type locality for species
• †Heintzella playfordi
• †Helicoplacus
• †Helicoplacus gilberti
• File:Helicoprion bessonovi cropped.png]] †Helicoprion
• †Helicoprion davisii
• †Helicotoma
• †Helicotoma griffinorum – type locality for species
• †Heliolites
• †Heliomeroides
• †Hercynella
• †Hercynella bohemica – or unidentified comparable form
• †Heritschiella
• †Heritschiella girtyi
• †Heritschioides
• †Heritschioides carneyi – type locality for species
• †Heritschioides hammani – type locality for species
• †Heritschioides wexoi – type locality for species
• †Hesperocoelia
• †Hesperocoelia undulata
• †Hesperorthis
• †Hesperorthis dubia – or unidentified comparable form
• †Hesperorthis evenkiensis
• †Heterocaninia
• †Heterocaninia langenheimi – type locality for species
• File:Holopeidae - Holopea praestans.JPG]] †Holopea
• †Holopea brucei – type locality for species
• †Holopea elizabethi – type locality for species
• †Holopea glindmeyeri – type locality for species
• †Holopea symmetrica – or unidentified comparable form
• †Hormotoma
• †Howellella
• †Howellella smithi – or unidentified comparable form
• †Hustedia
• †Hustedia compressa
• †Hyalostelia
• †Hyolithes
• †Hystricurus

{{Compact TOC}}

• File:Illaenidae - Illaenus tauricornis.JPG]] †Illaenus
• †Imperatoria
• †Imperatoria irregularis
• †Imperatoria media
• †Imperatoria mega
• †Imperatoria minima
• †Ingria
• †Inyoschwagerina
• †Inyoschwagerina elayeri – type locality for species
• †Inyoschwagerina elongata – type locality for species
• †Inyoschwagerina inflata – type locality for species
• †Inyoschwagerina linderae – type locality for species
• †Inyoschwagerina magnifica – type locality for species
• †Inyoschwagerina mira – type locality for species
• †Inyoschwagerina rotunda – type locality for species
• †Inyoschwagerina turgida
• †Ischyrotoma
• †Iskutella
• †Iskutella fergusoni – type locality for species
• †Isogramma
• †Isogramma pachti
• †Isorthis – tentative report
• File:Isotelus brachycephalus.JPG.]] †Isotelus
• †Isotelus spurius

{{Compact TOC}}

• †Kabyaipecten
• †Karavankina
• †Kawina
• †Kawina scrobiculus
• †Kirkirhynchus
• †Kirkirhynchus reesidei – or unidentified comparable form
• †Kitakamithyris
• †Klamathastraea – type locality for genus
• †Klamathastraea dilleri – type locality for species
• †Klamathina
• †Klamathina elongata – type locality for species
• †Klamathina simplex – type locality for species
• †Klamathina singularis – type locality for species
• †Kleopatrina – type locality for genus
• †Kleopatrina mccloudensis – type locality for species
• †Kleopatrina raubae – type locality for species
• †Komiella
• †Komiella ostiolata – or unidentified comparable form
• †Krotovia
• File:Kutorgina cingulata.png]] †Kutorgina
• †Kyphophyllum
• †Kyphophyllum greggi – type locality for species

{{Compact TOC}}

• †Langenheimia – type locality for genus
• †Langenheimia klamathensis – type locality for species
• †Laticrura
• †Laticrura erecta – or unidentified related form
• †Leioclema – tentative report
• †Leperditia
• †Leperditia bivia
• †Leptellina
• †Leptodus
• †Leptodus nobilis – or unidentified related form
• †Leptostrophia – tentative report
• †Leptotriticites
• †Leptotriticites americanus – or unidentified related form
• †Leptotriticites californicus
• †Leptotriticites glenensis
• †Leptotriticites gracilitatus – or unidentified comparable form
• †Leptotriticites hatchetensis – or unidentified related form
• †Leptotriticites hughesensis – or unidentified comparable form
• †Leptotriticites koschmanni – or unidentified comparable form
• †Leptotriticites panamintensis – type locality for species
• †Leptotriticites varius – or unidentified comparable form
• †Leptotriticites warmspringensis – type locality for species
• †Leptotriticites wetherensis
• †Lingula
• File:Lingulella caelata 1.png]] †Lingulella
• †Linoproductus
• †Linoproductus nasutus – tentative report
• †Linsleyella – type locality for genus
• †Linsleyella greggi – type locality for species
• †Linsleyella johnsoni – type locality for species
• †Liosotella
• †Liosotella cooperi – type locality for species
• †Liospira
• †Liospira modesta
• †Lissocoelia
• †Lissocoelia ramosa
• †Lissomarginifera
• †Lissomarginifera shastensis
• †Lithostrotion
• †Lithostrotion pauciradiale
• File:Lonchodomas mcgeheei CRF.jpg]] †Lonchodomas
• †Lophospira
• †Lophospira milleri – or unidentified comparable form
• †Lophospira perangulata
• †Loxonema – tentative report
• †Lytvophyllum – tentative report

{{Compact TOC}}

• †Maclurites
• †Maclurites crassa – or unidentified related form
• †Maclurites klamathensis – type locality for species
• †Malpaisia – type locality for genus
• †Malpaisia maceyi – type locality for species
• †Meekella
• †Megakozlowskiella
• †Megalomphala – tentative report
• †Megalomphala contorta
• File:Meristella two views.png]] †Meristella
• †Meristella robertsensis – or unidentified comparable form
• †Mesocoelia
• †Mesocoelia janus – or unidentified comparable form
• †Mesodouvillina – tentative report
• †Mestoronema
• †Mestoronema marginalis – or unidentified comparable form
• †Mexicaspis
• †Mexicaspis radiatus
• †Mexicella
• †Mexicella grandoculus
• †Mexicella mexicana
• †Mexicella robusta
• †Mexicella stator – tentative report
• †Michelinia
• †Michelinia nelsoni – type locality for species
• †Micromitra
• †Microryctocara
• †Microryctocara nevadensis
• †Monocraterion
• †Monodiexodina – tentative report
• †Mooreoceras
• †Mucophyllum
• †Mucophyllum mcintyrei – or unidentified comparable form
• †Murchisonia
• †Murchisonia bilineata – or unidentified comparable form

{{Compact TOC}}

• †Neilsonia
• †Neochonetes
• †Neochonetes pseudoliratus – or unidentified related form
• †Neomultithecopora
• †Neomultithecopora mccutcheonae
• †Neomultithecopora providensis – type locality for species
• †Neomultithecopora sandoi – type locality for species
• File:Trigonotretidae - Neospirifer ravana.JPG]] †Neospirifer
• †Neosyringopora
• †Neosyringopora multattenuata
• †Nephrolenellus
• †Nephrolenellus multinodus
• †Nevadatubuls
• †Nevadatubuls dunfee
• †Nevadatubulus
• †Nevadatubulus dunfee
• File:Nevadella eucharis USNM PAL 60079.jpg]] †Nevadella
• †Nigribaccinus
• †Nigribaccinus elegans – type locality for species
• †Nigribaccinus giganteus – type locality for species
• †Nigribaccinus nestelli – type locality for species
• †Nileus
• †Nileus hesperaffinis
• †Nucleospira
• †Nucleospira ventricosa – or unidentified comparable form
• †Nuculavus
• †Nuculites
• †Nyella
• †Nyella clinolimbata – tentative report

{{Compact TOC}}

• †Obolella
• †OIenellus
• †OIenellus gilberti
• File:Olenellus clarki 37mm CRF.jpeg]] †Olenellus
• †Olenellus arcuatus
• †Olenellus clarki
• †Olenellus cylindricus
• †Olenellus euryparia
• †Olenellus fowleri – or unidentified comparable form
• †Olenellus frementi
• †Olenellus fremonti
• †Olenellus gilberti
• †Olenellus howelli
• †Olenellus multinodus
• †Olenellus nevadensis
• †Olenellus puertoblancoensis
• †Olenellus terminatus
• †Olenellus transifans – or unidentified comparable form
• †Olenellus transiftans – or unidentified comparable form
• †Olenellus transitans – or unidentified comparable form
• †Olenellus turmalis – or unidentified comparable form
• †Omphalotrochus
• †Omphalotrochus whitneyi – type locality for species
• †Onchocephalites
• †Onchocephalites claytonensis – type locality for species
• †Onchocephalites laevis
• †Ophiletina
• †Ophiletina sublaxa – or unidentified related form
• †Orbiculoidea
• †Orbiculoidea damanensis
• †Orthambonites
• †Orthambonites decipiens
• †Orthambonites eucharis
• †Orthambonites mazousbensis
• †Orthambonites minisculus
• †Orthambonites minusculus
• †Orthambonites patulus
• †Orthidiella
• †Orthidiella extensa
• †Orthophyllum – tentative report
• †Orthotetes
• †Orthotichia
• †Orthotichia nawtawaketensis
• †Oryctocephalites
• †Oryctocephalites resseri
• †Oryctocephalus
• †Oryctocephalus indicus
• †Oryctocephalus nyensis
• †Oryctocephalus orientalis
• †Ovatia

{{Compact TOC}}

• †Pachystrophia – tentative report
• †Pachystrophia devexa – or unidentified comparable form
• †Pacificocoelia
• †Paladin
• Palaeoaplysina
• †Palaeomphalus
• †Palaeomphalus olsoni – type locality for species
• †Palaeophycus
• †Palaeophyllum
• †Paleochiton
• †Paleochiton siskiyouensis – type locality for species
• †Palliseria
• †Paraantagmus
• †Paraantagmus latus
• †Parafusulina
• †Parafusulina bakeri – or unidentified comparable form
• †Parafusulina californica
• †Parafusulina cerrogordoensis – type locality for species
• †Parafusulina complexa – type locality for species
• †Parafusulina durhami – or unidentified related form
• †Parafusulina halli – type locality for species
• †Parafusulina juncea – type locality for species
• †Parafusulina klamathensis – type locality for species
• †Parafusulina maleyi
• †Parafusulina mccloudensis – type locality for species
• †Parafusulina nosonensis
• †Parafusulina owensensis – type locality for species
• †Parafusulina potterensis – type locality for species
• †Parafusulina shaksgamensis – or unidentified comparable form
• †Parafusulina splendens
• †Parafusulina ubehebensis – type locality for species
• †Parafusulina virga
• †Paraheritschioides
• †Paraheritschioides californiense – or unidentified related form
• †Paraheritschioides stevensi – type locality for species
• †Paralbertella
• †Paralenorthis
• †Paralenorthis marshalli
• †Paralenorthis parcicrassicostatus – or unidentified comparable form
• †Paralenorthis parvicrassicostata – or unidentified comparable form
• †Paralenorthis parvicrassicostatus – or unidentified comparable form
• †Paraliospira – type locality for genus
• †Paraliospira angulata
• †Paraliospira gradata – type locality for species
• †Paraliospira helena
• †Paraliospira mundula
• †Paraliospira planata – type locality for species
• †Parallelodon
• †Parallelodon cingulatus
• †Parallelodon qinghaiensis
• †Parallelodon verneuilianus
• †Paramesolobus – tentative report
• †Paramesolobus sinuosus – or unidentified comparable form
• †Pararachnastraea
• †Pararachnastraea bellula – type locality for species
• †Pararachnastraea delicata – type locality for species
• †Pararachnastraea mckibbinae – type locality for species
• †Pararachnastraea owensensis – type locality for species
• †Pararachnastraea peggyae – type locality for species
• †Pararachnastraea wilsoni – type locality for species
• †Paraschwagerina
• †Paraschwagerina crassitheca – type locality for species
• †Paraschwagerina elongata – type locality for species
• †Paraschwagerina fairbanksi – type locality for species
• †Paraschwagerina fax
• †Paraschwagerina magna – type locality for species
• †Paraschwagerina tarda – type locality for species
• †Patellispongia
• †Patellispongia oculata – or unidentified comparable form
• †Patriaspirifer
• †Patriaspirifer kobehana
• †Paupospira
• †Paupospira sumnerensis – or unidentified related form
• †Paurorthis
• File:Peachella iddingsi cropped.jpg]] †Peachella
• †Peachella brevispina
• †Peachella iddingsi
• †Peniculauris – report made of unidentified related form or using admittedly obsolete nomenclature
• †Peniculauris bassi
• †Pentamerus
• †Perditocardinia
• †Permophorus
• †Pernopecten
• †Perrinites
• †Perrinites hilli
• †Peruniscus
• †Petalaxis
• †Petalaxis allisonae – type locality for species
• †Petalaxis besti – type locality for species
• †Petalaxis exiguus – type locality for species
• †Petalaxis occidentalis
• †Petalaxis sutherlandi – type locality for species
• †Petrozium
• †Petrozium staufferi – type locality for species
• †Phillipsia
• †Phillipsia nosonensis – type locality for species
• †Pholidops
• †Phragmorthis
• †Phragmorthis buttsi – or unidentified comparable form
• †Phricodothyris
• †Phyllograptus
• File:Plaesiomyiidae - Plesiomys subquadrata.JPG]] †Plaesiomys
• †Plagiura
• †Plagiura cerops – or unidentified comparable form
• †Plagiura minor
• †Planolites
• †Plasmopora
• †Plasmopora follis – or unidentified comparable form
• †Platyceras
• †Plectatrypa
• †Plectorthis
• †Plectorthis mazourkaensis
• †Plectorthis patula
• †Poleumita
• †Poleumita octavia
• †Polidevcia
• †Polyplacus
• †Polyplacus kilmeri
• †Polypora
• †Porefieldia
• †Porefieldia robusta
• †Presbynileus
• †Productus
• †Productus keokuk
• File:Proetus concinnus reconstruction cropped.png]] †Proetus
• †Proexenocrinus
• †Proexenocrinus inyoensis
• †Progalerus – tentative report
• †Prosolarium
• †Protocalymene
• †Protocalymene mcallisteri
• †Protowentzelella – type locality for genus
• †Protowentzelella cystosa
• †Protowentzelella kunthi
• †Protowentzelella noinskyi
• †Protowentzelella shastensis – type locality for species
• †Protowentzelella variabilis – type locality for species
• †Proturritella
• †Proturritella historicum – or unidentified related form
• †Pseudocheirurus
• †Pseudochusenella
• †Pseudochusenella buttensis – type locality for species
• †Pseudochusenella concisa
• †Pseudochusenella hazzardi – type locality for species
• †Pseudocystophora
• †Pseudocystophora fryi – type locality for species
• †Pseudocystophora wilsoni – type locality for species
• †Pseudofusulina
• †Pseudofusulina accepta – type locality for species
• †Pseudofusulina acuta – type locality for species
• †Pseudofusulina amoena – type locality for species
• †Pseudofusulina ardua – type locality for species
• †Pseudofusulina attenuata – type locality for species
• †Pseudofusulina concisa – type locality for species
• †Pseudofusulina contracta – type locality for species
• †Pseudofusulina decora – type locality for species
• †Pseudofusulina distorta – type locality for species
• †Pseudofusulina elleryensis – type locality for species
• †Pseudofusulina eximia – type locality for species
• †Pseudofusulina extensa – type locality for species
• †Pseudofusulina juncea – type locality for species
• †Pseudofusulina laxa – type locality for species
• †Pseudofusulina meeki – type locality for species
• †Pseudofusulina minuta – type locality for species
• †Pseudofusulina modesta – type locality for species
• †Pseudofusulina monstrosa – type locality for species
• †Pseudofusulina plana – type locality for species
• †Pseudofusulina retusa – type locality for species
• †Pseudofusulina solita – type locality for species
• †Pseudofusulina soluta – type locality for species
• †Pseudofusulina spissa – type locality for species
• †Pseudofusulina tenuis – type locality for species
• †Pseudofusulina tenuitheca – type locality for species
• †Pseudofusulinella
• †Pseudofusulinella aculeata – type locality for species
• †Pseudofusulinella acuminata – type locality for species
• †Pseudofusulinella acuta – type locality for species
• †Pseudofusulinella alta – type locality for species
• †Pseudofusulinella antiqua – type locality for species
• †Pseudofusulinella bellula – type locality for species
• †Pseudofusulinella biconica – type locality for species
• †Pseudofusulinella decora – type locality for species
• †Pseudofusulinella delicata – type locality for species
• †Pseudofusulinella dunbari – type locality for species
• †Pseudofusulinella formosa – type locality for species
• †Pseudofusulinella fragilis – type locality for species
• †Pseudofusulinella fusiformis – type locality for species
• †Pseudofusulinella harbaughi – type locality for species
• †Pseudofusulinella meeki – type locality for species
• †Pseudofusulinella montis
• †Pseudofusulinella moorei – type locality for species
• †Pseudofusulinella munda – type locality for species
• †Pseudofusulinella nitida – type locality for species
• †Pseudofusulinella obtusa – type locality for species
• †Pseudofusulinella occidentalis
• †Pseudofusulinella opima – type locality for species
• †Pseudofusulinella parvula – type locality for species
• †Pseudofusulinella pinguis – type locality for species
• †Pseudofusulinella prima – type locality for species
• †Pseudofusulinella proba – type locality for species
• †Pseudofusulinella pulchella – type locality for species
• †Pseudofusulinella retusa – type locality for species
• †Pseudofusulinella rotunda – type locality for species
• †Pseudofusulinella sera – type locality for species
• †Pseudofusulinella simplex – type locality for species
• †Pseudofusulinella solida – type locality for species
• †Pseudofusulinella solita – type locality for species
• †Pseudofusulinella spicata – type locality for species
• †Pseudofusulinella splendens – type locality for species
• †Pseudofusulinella thompsoni – type locality for species
• †Pseudofusulinella tumida – type locality for species
• †Pseudofusulinella ventricosa – type locality for species
• †Pseudofusulinella venusta – type locality for species
• †Pseudofusulinella wheeleri – type locality for species
• †Pseudomera
• †Pseudomera barrandei – or unidentified comparable form
• †Pseudoschwagerina
• †Pseudoschwagerina arta
• †Pseudoschwagerina californica – type locality for species
• †Pseudoschwagerina gerontica – or unidentified comparable form
• †Pseudoschwagerina robusta
• †Pseudoschwagerina roeseleri
• †Pseudoschwagerina uddeni
• †Ptarmiganoides
• †Ptarmiganoides hexacantha
• †Ptarmiganoides propiqua – or unidentified comparable form
• File:Pteridinium cropped.jpg]] †Pteridinium – tentative report
• †Ptychocaulus
• †Ptychocaulus rodneyi – type locality for species
• †Ptychopleurella
• †Ptychopleurella mediocostata – or unidentified comparable form
• †Ptychopleurella uniplicata – or unidentified related form
• †Ptyocephalus
• †Ptyocephalus declevita – or unidentified comparable form
• †Punctospirifer

{{Compact TOC}}

• †Radiotrabeculopora
• †Radiotrabeculopora reticulata
• †Raphispira
• †Raphispira plena – or unidentified comparable form
• †Raymondaspis
• †Raymondaspis vespertina
• †Remopleurides
• †Remopleuridiella
• †Repinaella
• †Replicoskenidioides
• †Replicoskenidioides rodneygreggi
• †Reticulariina – tentative report
• †Reticulariina laxa
• †Rhabdomeson
• †Rhipidomella
• †Rhynchopora
• †Rhynchopora taylori
• †Rhysostrophia
• †Rhysostrophia nevadensis
• †Rhysostrophia occidentalis
• †Rigbyetia
• †Rigbyetia obconica
• †Rossoceras
• †Rotellomphalus
• †Rotellomphalus tardus – or unidentified comparable form
• †Ruedemannia
• †Ruedemannia lirata – or unidentified comparable form
• †Ruedemannoceras
• †Rugosochonetes
• †Rugosochonetes californicus
• †Rugosochonetes californucus
• File:RusophycusOrdovician.jpg]] †Rusophycus

{{Compact TOC}}

• †Salopina
• †Salopina horseshoensis
• †Sandolasma
• †Sandolasma mckassoni – type locality for species
• †Sandolasma stonei
• †Scaphorthis
• †Schistometopus
• †Schizodus
• †Schizonema
• †Schizonema nisis – or unidentified comparable form
• †Schizophoria
• †Schizophoria bisinuata – or unidentified comparable form
• †Schizophoria compacta – or unidentified comparable form
• †Schubertella
• †Schubertella kingi
• †Schubertella minuta – type locality for species
• †Schubertella pusilla – type locality for species
• †Schuchertella
• †Schwagerina
• †Schwagerina aculeata
• †Schwagerina acuminata – type locality for species
• †Schwagerina amoena – type locality for species
• †Schwagerina arta – type locality for species
• †Schwagerina aspera – type locality for species
• †Schwagerina astricta – type locality for species
• †Schwagerina bassensis – type locality for species
• †Schwagerina bayhaensis – type locality for species
• †Schwagerina biconica – type locality for species
• †Schwagerina birklundensis – type locality for species
• †Schwagerina concinna – type locality for species
• †Schwagerina convexa
• †Schwagerina corpulenta – type locality for species
• †Schwagerina curta – type locality for species
• †Schwagerina cylindrica – type locality for species
• †Schwagerina davisi – or unidentified comparable form
• †Schwagerina demissa – type locality for species
• †Schwagerina elkoensis – or unidentified comparable form
• †Schwagerina eximia – type locality for species
• †Schwagerina fiski – type locality for species
• †Schwagerina harbaughi – type locality for species
• †Schwagerina humilis – type locality for species
• †Schwagerina juncea – type locality for species
• †Schwagerina klamathensis – type locality for species
• †Schwagerina laudoni – type locality for species
• †Schwagerina longissimoidea
• †Schwagerina mccloudensis – type locality for species
• †Schwagerina menziesi – or unidentified comparable form
• †Schwagerina modica
• †Schwagerina moorei – type locality for species
• †Schwagerina providens
• †Schwagerina providnes
• †Schwagerina pseudoprinceps – type locality for species
• †Schwagerina pugunculus – or unidentified comparable form
• †Schwagerina pulchella – type locality for species
• †Schwagerina remissa – type locality for species
• †Schwagerina rotunda – type locality for species
• †Schwagerina schencki – type locality for species
• †Schwagerina soluta – type locality for species
• †Schwagerina spicata – type locality for species
• †Schwagerina turgida – type locality for species
• †Schwagerina ventricosa – type locality for species
• †Schwagerina vervillei
• †Schwagerina wellsensis – or unidentified comparable form
• †Schwagerina wheeleri – type locality for species
• †Scolithes
• †Semicostella
• †Septospirifer – tentative report
• †Setigerites
• †Shamovella
• †Shastalasma
• †Shastalasma coogani – type locality for species
• †Shastalasma gavini – type locality for species
• †Shastalasma woodi – type locality for species
• †Shastaphyllum – type locality for genus
• †Shastaphyllum schucherti – type locality for species
• †Sigmelasma – type locality for genus
• †Sigmelasma pantherae – type locality for species
• †Siskiyouspira – type locality for genus
• †Siskiyouspira vostokovae – type locality for species
• †Skenidioides
• †Skenidioides glindmeyeri – type locality for species
• †Skenidioides mulifarius
• †Skenidioides multifarius
• †Skinnerella
• †Skinnerella davydovi – type locality for species
• †Skinnerella hexagona – type locality for species
• †Skinnerella mcallisteri – type locality for species
• †Spinuliplica
• †Spinulothele
• File:Spirifer perlamosus pedunculate valve.jpg]] †Spirifer
• †Spirifer brazerianus
• †Spiriferella
• †Spiriferellina
• †Spiriferina – tentative report
• †Squamularia – report made of unidentified related form or using admittedly obsolete nomenclature
• †Stacheoceras
• †Stacheoceras antiquum – or unidentified related form
• †Stacheoceras gordoni – type locality for species
• †Stearoceras
• †Stearoceras phosphoriense – or unidentified related form
• †Stenoloron – tentative report
• †Stenoloron fasciata – or unidentified related form
• †Stenoscisma
• †Stenoscisma venustum
• †Stereostylus
• †Stereostylus bollibokkensis – type locality for species
• †Stewartina
• †Stewartina convexa
• †Stewartina magnifica – type locality for species
• †Stewartina multispira
• †Stewartina texana
• †Stewartina uber
• †Stewartina ultimata – type locality for species
• †Straparollus
• †Streblochondria
• †Streblopteria
• †Streptelasma
• †Streptosolen
• †Striatifera
• †Striatopora – tentative report
• †Striatopora gwenensis – or unidentified comparable form
• †Stricklandia – tentative report
• †Strigigenalis
• †Stylonema
• †Stylonema potens – or unidentified comparable form
• †Swantonia
• File:Swartpuntiagermsi.png]] †Swartpuntia – or unidentified comparable form
• †Symphysurina
• †Syringaxon
• †Syringopora
• †Syspacephalus
• †Syspacephalus granulosus – tentative report
• †Syspacephalus obscurus
• †Syspacephalus variosus – type locality for species

{{Compact TOC}}

• †Taphrhelminthopsis
• †Taphrhelminthopsis nelsoni
• †Taphrorthis – tentative report
• †Temnodiscus – tentative report
• †Temnodiscus euryomphalus
• †Thairoplax
• †Thairoplax merriami – type locality for species
• †Thamniscus – report made of unidentified related form or using admittedly obsolete nomenclature
• †Thamnosia
• †Thamnosia arctica
• †Thompsonella
• †Thompsonella cylindrica – type locality for species
• †Thompsonella rugosa – type locality for species
• †Timaniella
• †Timaniella pseudocamerata
• †Tonopahella – type locality for genus
• †Tonopahella goldfieldensis – type locality for species
• †Tonopahella walcotti
• †Torynifer
• †Trematospira
• †Trepospira
• File:Arthrorhachis tarda draw entite.png]] †Trinodus
• †Trinodus clusus – or unidentified comparable form
• †Triticites
• †Triticites bensonensis
• †Triticites brevis – type locality for species
• †Triticites burgessae – or unidentified comparable form
• †Triticites buttensis
• †Triticites californicus
• †Triticites cellamagnus
• †Triticites elegantoides
• †Triticites gigantocellus
• †Triticites hermanni – type locality for species
• †Triticites invenustus – type locality for species
• †Triticites muddiensis
• †Triticites mulleri – type locality for species
• †Triticites occidentalis – type locality for species
• †Triticites schencki – type locality for species
• †Triticites tumentis – type locality for species
• †Triticites usitatus – type locality for species
• †Triticites ventricosus – or unidentified related form
• †Triticites viribus – type locality for species
• †Trocholites – tentative report
• †Trochonema
• †Trochonema liljevalli – type locality for species
• †Trochonemella – tentative report
• †Trochonemella mikulici – type locality for species
• †Tschussovskenia
• †Tschussovskenia connorsensis

{{Compact TOC}}

• †Unispirifer

{{Compact TOC}}

• †Valcourea
• †Valcourea plana – or unidentified comparable form
• †Verneuilia
• †Volborthella
• †Volborthella tenuis
• †Volocephalina
• †Volocephalina connexa
• †Volocephalina contracta

{{Compact TOC}}

• †Waagenoconcha – tentative report
• †Waagenophyllum
• †Waagenophyllum klamathensis – type locality for species
• File:Wanneria walcottana negative CRF.jpg]] †Wanneria
• †Waucobella
• †Waucobella nelsoni
• †Wellerella
• †Wellerella hemiplicata – or unidentified comparable form
• †Wellerella rotunda – or unidentified comparable form
• †Wenkchemnia
• †Wenkchemnia spinicollus – tentative report
• †Wenkchemnia sulcata
• †Westgardia
• †Westgardia gigantea – type locality for species
• †Wexolina – type locality for genus
• †Wexolina tombstonensis – type locality for species
• †Whitfieldella – tentative report
• †Wilsonastraea – type locality for genus
• †Wilsonastraea fluvius – type locality for species
• †Wilsonastraea parva – type locality for species
• †Wilsonastraea smithi – type locality for species
• †Wintunastraea – type locality for genus
• †Wintunastraea stanleyi – type locality for species
• †Wyattia

{{Compact TOC}}

• File:Xenodiscus besairiei.JPG]] †Xenodiscus
• †Xenodiscus carbonarius – or unidentified related form
• †Xenostegium
• †Xestotrema
• †Xestotrema pulchrum

{{Compact TOC}}

• †Yakovlevia
• †Yakovlevia californica – type locality for species

{{Compact TOC}}

• †Zacanthoides
• †Zacanthopsis
• †Zelophyllum

• {{cite web |title=Fossilworks: Gateway to the Paleobiology Database |author=((Various Contributors to the Paleobiology Database)) |url=https://www.fossilworks.org |access-date=7 August 2017}}

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{{Lists of the Paleozoic life of the United States}}

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*Paleozoic

Life

California