List of the Paleozoic life of Alaska

This list of the Paleozoic life of Alaska contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alaska and are between 541 and 252.17 million years of age.

A
  • †Abadehella
  • †Acanthocladia
  • †Acanthopecten
    • †Acanthopecten carbonifer – or unidentified related form
    • †Acanthopecten delawarensis – or unidentified related form
  • †Acanthophyllum
  • Fossil of the Silurian-Middle Devonian trilobite Acanthopyge
    †Acanthopyge
  • †Acervularia
  • †Aclisina – tentative report
  • †Acmarhachis
    • †Acmarhachis acutus
  • †Acrosaccus
    • †Acrosaccus shuleri – or unidentified comparable form
  • †Acrothele
  • †Actinocystis – tentative report
    • †Actinocystis perfecta – or unidentified comparable form
  • †Actinostroma
  • †Adolfispirifer
    • †Adolfispirifer sanjuanensis
  • †Afilasma
  • †Agathammina
  • †Agetolites
  • †Aglaoglypta
  • Fossilized shell of the Middle Devonian ammonoid cephalopod, Agoniatites
    †Agoniatites – tentative report
  • †Akidograptus
    • †Akidograptus acuminatus
  • †Alaskacirrus – type locality for genus
    • †Alaskacirrus bandeli – type locality for species
  • †Alaskaspongia
    • †Alaskaspongia nana
  • †Alaskaspongiella – type locality for genus
    • †Alaskaspongiella laminosa – type locality for species
  • †Alaskiella – type locality for genus
    • †Alaskiella medfraensis – type locality for species
  • †Alaskodiscus
    • †Alaskodiscus donensis
  • †Alaskospira
    • †Alaskospira dunbari
  • †Alaskozygopleura
    • †Alaskozygopleura crassicostata
  • †Albaillella
    • †Albaillella cartalla – or unidentified related form
  • †Aldanispirifer
  • †Allonema
    • †Allonema silurica
  • †Allorhynchoides – type locality for genus
    • †Allorhynchoides kirki – type locality for species
  • †Alokistocare – or unidentified comparable form
    • †Alokistocare lobatum
  • †Alveolitella
  • †Alveolites
  • †Amblysiphonella
  • †Ambocoelia
    • †Ambocoelia planiconvexa – or unidentified related form
    • †Ambocoelia umbonata
  • †Amoenospirifer
    • †Amoenospirifer angustiplicata
    • †Amoenospirifer sulcalplicata
  • †Amphipora
  • †Amplexograptus
    • †Amplexograptus confertus – or unidentified comparable form
    • †Amplexograptus perexcavatus – or unidentified comparable form
  • †Amplexoides
  • †Amplexus
  • †Anatrypa
    • †Anatrypa alinensis – or unidentified related form
    • †Anatrypa khavae – or unidentified comparable form
  • †Ancillotoechia
    • †Ancillotoechia antiquaria
  • †Ancyrognathus
    • †Ancyrognathus amana – or unidentified comparable form
  • †Anematina
    • †Anematina rockymontanum
  • †Anemonaria
    • †Anemonaria pseudohorrida
  • †Angullongia
    • †Angullongia minuta
  • †Anidanthus
  • †Anisopleurella
    • †Anisopleurella tricostata – type locality for species
  • †Anisotrypa – tentative report
  • †Anomalograptus
  • †Anomphalus – tentative report
  • †Anopolenus
    • †Anopolenus henrici
  • †Anoptambonites
    • †Anoptambonites grayae
    • †Anoptambonites pulchra
  • †Antherosalpinx
  • †Anthraconeilo – tentative report
  • †Aparchitella – tentative report
  • †Aphelognathus
    • †Aphelognathus divergens – or unidentified related form
  • †Apheoorthis
  • †Aphrosalpinx
    • †Aphrosalpinx nana – type locality for species
    • †Aphrosalpinx textilis
  • †Aphyllum
  • †Archaediscus
  • †Archeocidaris – tentative report
  • †Arctitreta
    • †Arctitreta kempei – or unidentified comparable form
  • †Arctozone – type locality for genus
    • †Arctozone cooki – type locality for species
  • †Arjamannia
    • †Arjamannia thraivensis – or unidentified related form
  • †Aseptirhynchia
    • †Aseptirhynchia glabrata
  • †Asgardaspira
    • †Asgardaspira gerulus – type locality for species
  • †Astralites
    • †Astralites gamblei – type locality for species
  • †Athabaskiella
    • †Athabaskiella ardis – type locality for species
  • †Athyris
    • †Athyris lamellosa – or unidentified related form
  • †Atomodesma – tentative report
  • Fossilized shell of the Late Ordovician-Carboniferous brachiopod Atrypa
    †Atrypa
  • †Atrypella
    • †Atrypella borealis
    • †Atrypella scheii
    • †Atrypella tenuis
  • †Atrypoidea
    • †Atrypoidea scheii
  • †Attenuatella
  • †Aulocystis
  • †Aulopora
  • †Australonema
  • †Australophyllum
  • Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten
    †Aviculopecten
    • †Aviculopecten chesterensis – tentative report
    • †Aviculopecten delawarensis – or unidentified related form
    • †Aviculopecten edwardsi – or unidentified related form
    • †Aviculopecten fasciculatus – or unidentified related form
    • †Aviculopecten hardinensis – or unidentified related form
    • †Aviculopecten mccoyi – or unidentified related form
    • †Aviculopecten montpelierensis – or unidentified related form
    • †Aviculopecten occidentalis – or unidentified related form
    • †Aviculopecten similis – or unidentified related form
  • † Avonia – tentative report

B
  • †Bailiaspis
    • †Bailiaspis picta
  • Bairdia
  • †Balbinipleura
    • †Balbinipleura krawczynskii – type locality for species
  • †Barocospira
    • †Barocospira cindiprellerae – type locality for species
  • †Bathyuriscidella
    • †Bathyuriscidella socialis
  • †Bathyuriscus
    • †Bathyuriscus punctatus – type locality for species
  • †Batostomella
  • †Belemnites – tentative report
  • Fossilized shell of the Silurian-Early Triassic mollusc Bellerophon
    †Bellerophon
    • †Bellerophon chapmani
    • †Bellerophon livengoodensis
    • †Bellerophon spergensis – or unidentified related form
  • †Belodina
  • †Belowea
    • †Belowea variabilis
  • †Bembexia – tentative report
    • †Bembexia inumbilicata – type locality for species
  • †Bensbergia
    • †Bensbergia subcostata – or unidentified related form
  • †Beraunia
    • †Beraunia bifrons
    • †Beraunia bohemica
  • †Betaneospirifer
    • †Betaneospirifer marcoui – or unidentified related form
  • †Beyrichia
    • †Beyrichia churkini
  • †Bicarinatina
    • †Bicarinatina kongakutensis – type locality for species
  • †Bighornia
  • †Bimuria
    • †Bimuria gilbertella
  • †Blasispirifer
    • †Blasispirifer blasii – or unidentified related form
  • †Bohemicardia
    • †Bohemicardia bohemica – or unidentified comparable form
  • †Bolaspidella
    • †Bolaspidella wellsvillensis
  • †Bothrodendron
    • †Bothrodendron kiltorkense
  • †Boucotspira
    • †Boucotspira carinifer
  • †Brachylasma – tentative report
  • †Brachymetopus
    • †Brachymetopus pseudometopina
  • †Brachyprion
  • †Brachythyrina
    • †Brachythyrina rectangula – or unidentified related form
  • †Brachythyris
    • †Brachythyris subcardiformis – or unidentified related form
    • †Brachythyris subcardiiformis – or unidentified related form
    • †Brachythyris suborbicularis – or unidentified related form
    • †Brachythyris ufensis – or unidentified related form
  • †Breviphyllum
    • †Breviphyllum lindstromi – or unidentified comparable form
  • †Briscoia – tentative report
  • †Bronteus
  • †Brooksina
    • †Brooksina alaskensis
  • †Bruntonia
    • †Bruntonia granulifera
  • †Bucanopsis
    • †Bucanopsis volgulica – or unidentified related form
  • †Buechelia
    • †Buechelia nodosa
  • †Bulimorpha
  • †Bulimorphia
    • †Bulimorphia peracuta – or unidentified related form
  • †Buthrotrephis – tentative report

C
  • †Calapoecia
  • †Calceola
    • †Calceola sandalina – or unidentified comparable form
  • †Callaiapsida
    • †Callaiapsida arctica
    • †Callaiapsida kekuensis – type locality for species
    • †Callaiapsida pentameroides – or unidentified related form
  • †Calliprotonia – tentative report
  • †Callistadia
  • †Callograptus
  • †Callositella – type locality for genus
    • †Callositella cheeneetnukensis – type locality for species
  • †Callospiriferina
    • †Callospiriferina pinguis
  • †Calymene
  • †Camarotoechia
    • †Camarotoechia billingsi – or unidentified comparable form
    • †Camarotoechia duplicata – tentative report
    • †Camarotoechia winiskensis – or unidentified comparable form
  • †Campophyllum – tentative report
  • †Cancrinella
    • †Cancrinella cancrini – or unidentified related form
    • †Cancrinella cancriniformis – or unidentified related form
    • †Cancrinella koninckiana – or unidentified related form
    • †Cancrinella tenuissima
  • †Caneyella – tentative report
  • †Capellinia
  • Capulus
  • †Cardiomorpha – tentative report
  • †Carinatina
  • †Caruthia – type locality for genus
    • †Caruthia borealis – type locality for species
  • †Caryocaris
  • †Catazyga
  • Fossil of the Ordovician-Silurian tabulate coral Catenipora
    †Catenipora
    • †Catenipora jacovikii – or unidentified comparable form
    • †Catenipora robustus – or unidentified comparable form
    • †Catenipora rubra – or unidentified comparable form
  • †Cedaria
  • †Centronella
    • †Centronella navicella – or unidentified comparable form
  • †Ceratiacaris
  • †Ceratopea
    • †Ceratopea medfraensis – type locality for species
  • †Cernuolimbus
    • †Cernuolimbus longifrons
  • †Chaetetes
    • †Chaetetes milleporaceous
  • †Chaetetipora
    • †Chaetetipora ellesmerensis – or unidentified comparable form
  • †Chaoiella
    • †Chaoiella gruenewaldti – or unidentified related form
  • †Chapinella – type locality for genus
    • †Chapinella bucareliensis – type locality for species
  • †Charactophyllum
  • †Cheeneetnukia – type locality for genus
    • †Cheeneetnukia frydai – type locality for species
  • †Cheilocephalus
    • †Cheilocephalus expansus – type locality for species
  • †Cheiropyge
    • †Cheiropyge himalayensis
  • Fossil of the Cambrian-Middle Devonian trilobite Cheirurus
    †Cheirurus
  • †Chirognathus – tentative report
  • †Chlupacispira – type locality for genus
    • †Chlupacispira spinosa – type locality for species
  • †Chonetes
    • †Chonetes capax – or unidentified related form
    • †Chonetes illinoisensis – or unidentified related form
    • †Chonetes manitobensis – or unidentified comparable form
    • †Chonetes timanicus – or unidentified related form
    • †Chonetes verneuile – or unidentified comparable form
    • †Chonetes verneuilianus – or unidentified related form
  • †Chonetina – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Chonetinella
  • †Chonetipustula
    • †Chonetipustula concentrica
  • †Chonetoidea – or unidentified related form
  • †Chonophyllum
  • †Choristites
  • †Christiania
    • †Christiania aseptata – type locality for species
  • †Chusenella
    • †Chusenella atlinensis – or unidentified loosely related form
  • Fossil of the Carboniferous tabulate coral Cladochonus
    †Cladochonus
  • †Cladopora
  • †Cladospongia – type locality for genus
    • †Cladospongia alaskensis – type locality for species
  • †Clathronema
    • †Clathronema cingulata
    • †Clathronema cloughi
  • †Cleiothyridina
    • †Cleiothyridina milleri – type locality for species
    • †Cleiothyridina sublamellosa – or unidentified related form
  • †Cleiothyris
    • †Cleiothyris suborbiculoides – or unidentified related form
  • †Cliefdenella
    • †Cliefdenella alaskaensis
  • Assemblage of fossils of the Cambrian graptolite Climacograptus
    †Climacograptus
    • †Climacograptus antiquus – or unidentified related form
    • †Climacograptus bicornis
    • †Climacograptus eximius – or unidentified comparable form
    • †Climacograptus hughesi – or unidentified comparable form
    • †Climacograptus indivisus
    • †Climacograptus innotatus
    • †Climacograptus medius
    • †Climacograptus minutus – tentative report
    • †Climacograptus phyllophorus – or unidentified comparable form
    • †Climacograptus pungens
    • †Climacograptus rectangularis
    • †Climacograptus scalaris
    • †Climacograptus stenotelus
    • †Climacograptus trifilis
  • †Cliothyridina
    • †Cliothyridina incrassata – or unidentified related form
    • †Cliothyridina orbicularis – or unidentified related form
    • †Cliothyridina sublamellosa – or unidentified related form
  • †Clisiophyllum
  • †Clorinda
  • †Codonofusiella
  • †Coelocaulus
    • †Coelocaulus karlae – type locality for species
  • †Coeloconus
  • †Coelospira
  • †Coelotrochium
  • †Coenites
  • †Colpomya – tentative report
    • †Colpomya audae – or unidentified related form
    • †Colpomya hugini – or unidentified related form
  • †Compacoleus
  • Fossilized shell of the Late Devonian-Permian brachiopod Composita
    †Composita
    • †Composita ambigua – or unidentified comparable form
    • †Composita bellula – or unidentified related form
  • †Comuquia
    • †Comuquia curvirostris – or unidentified related form
  • †Conchidium
    • †Conchidium alaskense
    • †Conchidium knighti
  • †Condrathyris
    • †Condrathyris perplexa
  • †Conocardium
  • †Contortophyllum
  • †Cordylodus – tentative report
  • †Corymbospongia
    • †Corymbospongia adnata
    • †Corymbospongia amplia – type locality for species
    • †Corymbospongia betella
  • †Corynexochus
    • †Corynexochus perforatus
    • †Corynexochus plumula
  • †Corynoides
    • †Corynoides tricornis
  • †Cotalagnostus – or unidentified comparable form
    • †Cotalagnostus lens
  • †Cranaena
    • †Cranaena romingeri – or unidentified comparable form
  • Fossilized shell of the Late Cretaceous brachiopod Crania
    †Crania
  • †Craspedalosia – tentative report
  • †Craspedelia
    • †Craspedelia potterella – type locality for species
  • †Crassialveolites
  • †Craterophyllum – or unidentified comparable form
  • †Craticula – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Craticula gotlandica
  • †Crurithyris
    • †Crurithyris alaskensis – type locality for species
  • †Cryptacanthia
    • †Cryptacanthia compacta – or unidentified related form
  • †Cryptograptus
    • †Cryptograptus centrifugus – or unidentified comparable form
    • †Cryptograptus schaferi
    • †Cryptograptus tricornis
  • †Cyathactis
  • †Cyathaxonia
  • †Cyathodictya
  • †Cyathophylloides
  • †Cyathophyllum
  • †Cyclonema
    • †Cyclonema servus
  • Fossilized foliage from the Carboniferous seed fern Cyclopteris
    †Cyclopteris – tentative report
  • †Cyclospira
    • †Cyclospira elegantula
    • †Cyclospira orbus
  • †Cymbidium
    • †Cymbidium acutum
    • †Cymbidium retrorsum
  • †Cymostrophia
    • †Cymostrophia costatula – or unidentified comparable form
  • †Cyphaspis
  • †Cypricardella
  • †Cypricardina
    • †Cypricardina consimilis – or unidentified related form
  • †Cypricardinia
    • †Cypricardinia contexta
  • †Cyrolexis
    • †Cyrolexis superstes – or unidentified related form
  • †Cyrtia
  • †Cyrtina
    • †Cyrtina billingsi – or unidentified comparable form
  • †Cyrtinaella
    • †Cyrtinaella undulata
  • Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras
    †Cyrtoceras
  • †Cyrtospira
  • †Cyrtospirifer
    • †Cyrtospirifer buddingtoni – type locality for species
    • †Cyrtospirifer paridaensis
  • †Cystihalysites
  • †Cystiphylloides
  • †Cystiphyllum
  • †Cystodictya
    • †Cystodictya lineata – or unidentified related form
    • †Cystodictya pustulosa – or unidentified related form
  • †Cystostroma
  • †Cystothalamiella
    • †Cystothalamiella alaskaensis
    • †Cystothalamiella ducta
    • †Cystothalamiella irregularis – type locality for species
    • †Cystothalamiella polyducta
  • Cytherella – tentative report
  • †Cyztograptus

D
  • †Daidia
    • †Daidia cerithioides
    • †Daidia sewardensis
  • †Dalmanella
    • †Dalmanella occlusa
  • Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites
    †Dalmanites
  • †Dasometopus
    • †Dasometopus breviceps
  • †Dechenella
  • †Decorospira
    • †Decorospira lepaini – type locality for species
    • †Decorospira minutula – type locality for species
    • †Decorospira tasselli
  • †Deiracorallium
  • †Delthyris
    • †Delthyris sulcatus
  • †Deltopecten
    • †Deltopecten caneyanus – or unidentified related form
    • †Deltopecten wyandotte – or unidentified related form
  • †Dendrograptus
  • †Dendrostella
    • †Dendrostella rhenana – or unidentified comparable form
  • Shell of a Dentalium tusk shell
    †Dentalium
    • †Dentalium hecetaensis
  • †Derbyia
    • †Derbyia bennetti – or unidentified related form
    • †Derbyia grandis – or unidentified comparable form
    • †Derbyia robusta – or unidentified related form
  • †Diambonia
    • †Diambonia discuneata
  • †Diaphragmus
  • †Dicellograptus
    • †Dicellograptus caduceus – or unidentified comparable form
    • †Dicellograptus elegans – or unidentified comparable form
    • †Dicellograptus gurleyi
    • †Dicellograptus sextans
    • †Dicellograptus smithi – or unidentified comparable form
  • †Dicoelosia
    • †Dicoelosia jonesridgensis
  • †Dicranograptus
    • †Dicranograptus contortus – tentative report
  • †Dicricoconus
    • †Dicricoconus dutroi
    • †Dicricoconus mesodevonicus
    • †Dicricoconus triannulatus
  • †Dictyoclostus
    • †Dictyoclostus gallatinensis – or unidentified related form
    • †Dictyoclostus semireticulatus
    • †Dictyoclostus tartaricus
  • †Dictyonema
  • Fossil of the Middle Ordovician graptolite Didymograptus
    †Didymograptus
    • †Didymograptus extensus – or unidentified comparable form
    • †Didymograptus nitidus – or unidentified comparable form
    • †Didymograptus sagitticaulis
    • †Didymograptus serratulus
  • †Dielasma
    • †Dielasma arkansanum – or unidentified related form
    • †Dielasma bovidens – or unidentified related form
    • †Dielasma formosum – or unidentified related form
    • †Dielasma supracarbonicum – or unidentified related form
  • †Digonophyllum
  • †Dimorphograptus
    • †Dimorphograptus confertus
    • †Dimorphograptus physophora
  • †Diorthelasma
    • †Diorthelasma parvum
  • †Diparelasma
  • †Diphyphyllum
  • †Diplochone
  • Cambrian graptolite Diplograptus
    †Diplograptus
    • †Diplograptus cyperoides – or unidentified comparable form
    • †Diplograptus elongatus
    • †Diplograptus euglyptus
    • †Diplograptus hughesi
    • †Diplograptus inutilis
    • †Diplograptus modestus
    • †Diplograptus mucroterminatus
    • †Diplograptus multidens – or unidentified related form
    • †Diplograptus nicolsoni – or unidentified comparable form
  • †Diplopora – tentative report
  • †Disphyllum
    • †Disphyllum catenatum – or unidentified comparable form
    • †Disphyllum goldfussi – or unidentified comparable form
  • †Disphyllym – tentative report
  • †Diversograptus
  • †Doleroides
    • †Doleroides panna – or unidentified related form
  • †Donaldiella
  • †Donaldospira
    • †Donaldospira pertusa
  • †Dorypyge
    • †Dorypyge olenekensis – or unidentified comparable form
  • †Drepanodus
  • †Drepanoistodus
    • †Drepanoistodus suberectus
  • Fossilized foliage from the Early-Late Devonian club moss relative Drepanophycus
    †Drepanophycus
  • †Droharhynchia
    • †Droharhynchia rzhonsnitskayae – type locality for species
  • †Dubovikovia
    • †Dubovikovia kuzmini – or unidentified comparable form
  • †Dunbarula
  • †Dunderbergia
    • †Dunderbergia seducta – type locality for species
  • †Duolobella – type locality for genus
    • †Duolobella sandiae – type locality for species
  • †Dutrochus – type locality for genus
    • †Dutrochus alaskensis – type locality for species
  • †Dyoros
    • †Dyoros spitzbergianus – or unidentified comparable form
  • †Dytremacephalus – tentative report

E
  • †Echinoconchus
    • †Echinoconchus punctatus
  • †Echyropora – tentative report
  • †Ectomaria
    • †Ectomaria orientalis
    • †Ectomaria pagoda – or unidentified comparable form
    • †Ectomaria prisca – or unidentified comparable form
  • †Edmondia
  • †Ekvasophyllum
  • †Elburgia
    • †Elburgia disgranosa – type locality for species
  • †Eleutherokomma
  • †Eleutherospira
    • †Eleutherospira medfraensis
  • † Ella – tentative report
    • †Ella simensis – or unidentified related form
  • †Ellesmeroceras
  • Fossils at different stages of development of the Cambrian trilobite Elrathia
    †Elrathia
    • †Elrathia alaskensis – type locality for species
  • †Emanuella
    • †Emanuella altus
    • †Emanuella neumani
  • †Emmonsia
  • †Endothyra
    • †Endothyra bowmani – or unidentified related form
  • †Entactinia
    • †Entactinia modesta
  • †Enteletes – tentative report
  • †Entelophyllum – tentative report
  • †Entomis
    • †Entomis pelagica
  • †Eoasianites
  • †Eoconchidium
  • †Eognathodus
    • †Eognathodus sulcatus
  • †Eomarginifera
    • †Eomarginifera longispinus
  • †Eomoelleritia – tentative report
  • †Eopteria
    • †Eopteria richardsoni
  • †Eoreticularia – tentative report
  • †Eoschuchertella
  • †Eospirifer
  • †Epiphyton
  • †Epitomyonia
    • †Epitomyonia relicina
  • †Euchondria – tentative report
    • †Euchondria neglecta – or unidentified related form
  • †Euconospira
    • †Euconospira conula – or unidentified related form
  • †Eumetria
    • †Eumetria verneuiliana
  • †Eunema
    • †Eunema quadrisulcata – or unidentified comparable form
  • †Euomphalopteris – tentative report
  • †Euomphalopterus – type locality for genus
    • †Euomphalopterus liratus – type locality for species
  • Fossilized shell of the Silurian-Permian sea snail Euomphalus
    †Euomphalus
    • †Euomphalus brooksensis
    • †Euomphalus bundtzeni
    • †Euomphalus planodorsatus – or unidentified related form
    • †Euomphalus planorbis
    • †Euomphalus utahensis – or unidentified related form
  • †Euphemites
    • †Euphemites carbonarius
  • †Euryzone

F
  • †Faberophyllum
  • †Falodus
  • †Farewellia – type locality for genus
    • †Farewellia heidelbergerae – type locality for species
  • †Fasciculatia
    • †Fasciculatia striatoparadoxa
  • †Fasciphyllum – tentative report
  • Fossil of the Late Ordovician-Permian tabulate coral Favosites
    †Favosites
    • †Favosites emmonsi – or unidentified comparable form
    • †Favosites hemispericus
    • †Favosites hemisphericus
    • †Favosites limitaris
    • †Favosites radiciformis
  • †Fenestella
  • †Filigreenia
    • †Filigreenia circularis
  • †Finkelnburgia
  • †Fistulella
    • †Fistulella undosa
  • †Fistulipora
  • †Fletcheria – tentative report
  • †Fluctuaria
    • †Fluctuaria undata – or unidentified related form
  • †Follicucullus
    • †Follicucullus monacanthus – or unidentified related form
  • †Foordites
    • †Foordites platypleura – or unidentified comparable form
  • †Fusispira
  • Assemblage of fossils of Silurian-Permian fusulinid foraminiferans
    †Fusulina
    • †Fusulina elongata – or unidentified related form
  • †Fusulinella
    • †Fusulinella eopulchra – or unidentified comparable form

G
  • †Gasterocoma – tentative report
    • †Gasterocoma bicauli
  • †Gastrioceras
    • †Gastrioceras nolinense – or unidentified related form
  • †Gelidorthis
    • †Gelidorthis perisiberiaensis
  • Fossil of the Early-Late Ordovician trilobite Geragnostus
    †Geragnostus
  • †Gervillia
    • †Gervillia longa – or unidentified related form
  • †Girtyella
  • †Girtyocoelia – type locality for genus
    • †Girtyocoelia epiporata
    • †Girtyocoelia minima
  • †Girvanella
    • †Girvanella problematica
  • †Glaberagnostus
    • †Glaberagnostus cicer
  • †Glabrocingulum
    • †Glabrocingulum grayvillense – or unidentified related form
  • †Globoendothyra
  • †Glossograptus
    • †Glossograptus dentatus – or unidentified comparable form
    • †Glossograptus echinatus – or unidentified comparable form
    • †Glossograptus hincksii
    • †Glossograptus horridus
    • †Glossograptus hystrix – or unidentified related form
  • †Glyptograptus
    • †Glyptograptus enodis – or unidentified comparable form
    • †Glyptograptus gnomus
    • †Glyptograptus incertus
    • †Glyptograptus laciniosus
    • †Glyptograptus lanpherei
    • †Glyptograptus tamariscus
  • †Glyptopora
  • †Gomphoceras
  • †Goniatites
  • †Goniocladia – tentative report
  • †Goniophora
    • †Goniophora thula – type locality for species
  • †Grammysia
  • †Granularaspis
  • †Graptospongia
  • Multiple views of a fossil of the Ordovician horn coral Grewingkia
    †Grewingkia
  • †Grypophyllum
  • †Gypidula
    • †Gypidula cornuta
    • †Gypidula intervenicus – or unidentified comparable form
    • †Gypidula optatus
    • †Gypidula orbitatus
    • †Gypidula pelagica
    • †Gypidula perryi
    • †Gypidula upatensis
  • †Gypiduloides
    • †Gypiduloides craigenensis
  • †Gypospirifer
  • †Gyronema

H
  • †Hallograptus
    • †Hallograptus mucronatus
  • †Halysites
  • †Haplistion – tentative report
  • †Haplospira
    • †Haplospira craigi – type locality for species
  • †Hardyoides
    • †Hardyoides aspinosa – type locality for species
  • †Harperoides – type locality for genus
    • †Harperoides alaskensis – type locality for species
  • Fossil of the Devonian trilobite Harpides
    †Harpides
  • †Harpidium
    • †Harpidium insignis
    • †Harpidium latus
    • †Harpidium rotundus
  • †Hartshillia
    • †Hartshillia clivosa
  • †Hecetaphyton
    • †Hecetaphyton alaskense
  • †Hecetastoma – type locality for genus
    • †Hecetastoma gehrelsi – type locality for species
  • †Hedstroemia – tentative report
  • †Hedstromophyllum
  • †Helicotoma
    • †Helicotoma blodgetti – type locality for species
    • †Helicotoma robinsoni – type locality for species
  • †Heliolites
  • †Heliophyllum
  • †Helioplasmolites
  • Fossil of the Cambrian trilobite Hemirhodon
    †Hemirhodon
  • †Hemitrypa
  • †Hercynella
    • †Hercynella bohemica
    • †Hercynella nobilis
  • †Hexagonaria
  • †Hindeodus
  • †Holopea
  • †Holopella
  • †Homagnostus
    • †Homagnostus alaskensis – type locality for species
  • †Hormospongia – type locality for genus
    • †Hormospongia acara – type locality for species
    • †Hormospongia diarteria – type locality for species
    • †Hormospongia labyrinthica – type locality for species
  • †Hormotoma
  • †Horridonia
    • †Horridonia horrida
  • †Hostimella
  • †Howellella
    • †Howellella amsdeni
    • †Howellella nucula
    • †Howellella yacutica
  • †Howellites
    • †Howellites amsdeni – type locality for species
  • †Howittia
    • †Howittia haideri
  • †Hustedia
    • †Hustedia meekana – or unidentified related form
    • †Hustedia remota – or unidentified related form
  • †Hustedograptus
    • †Hustedograptus teretiusculus
  • †Hypagnostus
  • †Hypomphalocirrus
    • †Hypomphalocirrus rugosus – or unidentified comparable form
  • †Hypothyridina
    • †Hypothyridina magister

I
  • †Icriodus
    • †Icriodus angustoides
    • †Icriodus taimyricus
  • †Iddingsia
    • †Iddingsia relativa – type locality for species
  • †Idiognathodus
  • †Idiostroma
  • †Imperatoria
    • †Imperatoria media
  • †Iowaphyllum
    • †Iowaphyllum johanni – or unidentified comparable form
  • †Iowatrypa
    • †Iowatrypa owenensis
  • †Iskutella
    • †Iskutella gunningi
  • †Isochilina
  • †Isograptus
    • †Isograptus forcipiformis
    • †Isograptus manubriatus – or unidentified comparable form
  • †Isorthis
  • †Ivdelinia

J
  • †Janius
    • †Janius velatus – or unidentified comparable form
  • †Jedria
    • †Jedria deckeri
  • †Johnsonathyris – type locality for genus
    • †Johnsonathyris adrianensis – type locality for species
  • †Juraspis
    • †Juraspis schabanovi
  • †Juresania
    • †Juresania juresanensis – or unidentified related form

K
  • †Kahlerina
  • †Karavankina
    • †Karavankina fasciata – or unidentified related form
  • †Ketophyllum
  • †Kindleina – type locality for genus
    • †Kindleina suemezensis – type locality for species
  • Fossilized shells of the Middle Ordovician-Permian nautiloid cephalopod Kionoceras
    †Kionoceras
  • †Kirkidium
  • †Kirkirhynchus
    • †Kirkirhynchus reesidei
  • †Kirkospira – type locality for genus
    • †Kirkospira glacialis – type locality for species
    • †Kirkospira tongassensis – type locality for species
  • †Kitikamispira
    • †Kitikamispira ormistoni
  • †Klakesia
  • †Kochiproductus
    • †Kochiproductus porrectus – or unidentified related form
  • †Komiella
    • †Komiella gilberti – type locality for species
    • †Komiella ostiolata – or unidentified related form
  • Fossil of the Cambrian trilobite Kootenia
    †Kootenia
    • †Kootenia anabarensis – or unidentified comparable form
    • †Kootenia granulospinosa – type locality for species
    • †Kootenia serrata – or unidentified comparable form
  • †Krausella
  • †Krotovia
    • †Krotovia pustulata – or unidentified related form
  • †Kuskokwimia – type locality for genus
    • †Kuskokwimia moorei – type locality for species
  • †Kuvelousia
    • †Kuvelousia sphiva
    • †Kuvelousia weyprechti – or unidentified comparable form

L
  • †Labechia
  • †Labyrinthites
  • †Lacunoporaspis
  • Laevidentalium
    • †Laevidentalium venustum – or unidentified related form
  • †Laioporella
    • †Laioporella pyramidata – or unidentified related form
  • †Lamprophyllum
  • †Latentifistula
  • †Laticrura
    • †Laticrura pionodema
  • †Lecanospira – tentative report
  • †Leioclema
  • †Leiorhynchus
    • †Leiorhynchus greenianum – or unidentified related form
  • †Lejopyge
  • †Leperditia
  • †Lepidocoleus
    • †Lepidocoleus britannicus
  • †Leptaena
    • †Leptaena alaskensis – type locality for species
  • †Leptathyris
    • †Leptathyris borki
  • †Leptellina
    • †Leptellina occidentalis
  • †Leptelloidea
    • †Leptelloidea leptelloides
  • †Leptodesma
  • †Leptograptus
  • †Leptostrophia
  • †Libumella – tentative report
  • †Licharewia
  • †Lichas
  • †Ligiscus
    • †Ligiscus smithi – type locality for species
  • Lima
  • †Linguagnostus
    • †Linguagnostus gronwalli
  • †Lingula
    • †Lingula freboldi
  • Linguopugnoides
    • †Linguopugnoides carens
  • †Linograptus
    • †Linograptus posthumus – or unidentified related form
  • †Linoproductus
    • †Linoproductus cora
    • †Linoproductus lineatus – or unidentified related form
    • †Linoproductus tenuistriatus – or unidentified related form
  • †Liosotella
    • †Liosotella proboscidea – or unidentified comparable form
  • †Liospira
    • †Liospira micula
    • †Liospira progne – or unidentified comparable form
  • †Lissatrypa – tentative report
  • †Lissochonetes
    • †Lissochonetes geinitzianus – or unidentified related form
    • †Lissochonetes morahensis – or unidentified related form
    • †Lissochonetes superba – or unidentified comparable form
  • †Lithostrotion
    • †Lithostrotion mclareni
    • †Lithostrotion portlocki – or unidentified related form
    • †Lithostrotion sinuosum
    • †Lithostrotion warreni
  • †Lithostrotionella
    • †Lithostrotionella banffensis
    • †Lithostrotionella birdi
  • †Loganograptus
  • †Lonsdaleia
  • †Lophophyllum
  • †Lophospira
    • †Lophospira perangulata – or unidentified comparable form
    • †Lophospira serrulata – or unidentified related form
  • †Loxonema
  • †Loyolophyllum
  • Fossilized shell of the Devonian-modern marine bivalve Lucina
    †Lucina
    • †Lucina proavia – or unidentified comparable form
  • †Ludlovia
    • †Ludlovia multispora
  • †Lunucammina
  • †Lunulazona
    • †Lunulazona sablei – type locality for species
  • †Lykocustiphyllim – tentative report
  • †Lyrielasma
  • †Lytospira
    • †Lytospira subrotunda
  • †Lytvophyllum – tentative report
    • †Lytvophyllum hongi

M
  • †Macgeea
  • †Maclurina
    • †Maclurina manitobensis – or unidentified comparable form
  • †Maclurites
    • †Maclurites magnus – or unidentified related form
  • †Marginifera
    • †Marginifera involuta
    • †Marginifera juresanensis – or unidentified comparable form
    • †Marginifera lebedevi – or unidentified related form
    • †Marginifera splendens – or unidentified related form
    • †Marginifera typica – or unidentified related form
  • †Marinurnula
    • †Marinurnula timanicum – or unidentified comparable form
  • †Marjumia
    • †Marjumia callas
  • †Martinia
    • †Martinia maia – or unidentified comparable form
  • †Martiniopsis
  • †Mastigospira
    • †Mastigospira weberae
  • †Medfracaulus – type locality for genus
    • †Medfracaulus cooki – type locality for species
    • †Medfracaulus turriformis
  • †Medfraspongia
    • †Medfraspongia tubulara
  • †Medfrazyga – type locality for genus
    • †Medfrazyga clauticae – type locality for species
    • †Medfrazyga gilmulli – type locality for species
  • †Medlicottia
    • †Medlicottia orbigiana – or unidentified related form
  • †Meekella – tentative report
  • †Meekospira
  • †Megagnostus
    • †Megagnostus laevis
    • †Megagnostus resecta
  • †Megalomus
  • †Megousia
    • †Megousia aagardi
  • †Mehlina
  • †Menophyllum – tentative report
  • †Mephiarges – tentative report
  • Illustration (lower right, entry 15) of a fossilized shell in front and side views of the Silurian-Late Devonian brachiopod Meristella
    †Meristella
    • †Meristella barrisi – or unidentified comparable form
    • †Meristella ceras – or unidentified comparable form
    • †Meristella tumida – tentative report
  • †Meristina
  • †Mesodouvillina
  • †Mesofavosites
  • Mesophyllum
    • †Mesophyllum dachsbergi
  • †Metadoliolina – tentative report
  • †Michelinia
  • †Michelinoceras – tentative report
  • †Micidus
    • †Micidus stellae
  • †Microplasma
  • †Miculiella – or unidentified comparable form
  • †Mizzia – tentative report
  • †Modiolopsis
    • †Modiolopsis modiolaris – or unidentified related form
  • †Modiolus – tentative report
  • †Modiomorpha
  • †Modocia
    • †Modocia compressa – type locality for species
    • †Modocia transversa – type locality for species
  • †Moelleritia
    • †Moelleritia canadensis
  • †Monadotoechia – tentative report
  • Fossils of the Early Devonian graptolite Monograptus
    †Monograptus
    • †Monograptus acinaces
    • †Monograptus atavus
    • †Monograptus bohemicus
    • †Monograptus buddingtoni
    • †Monograptus calamistratus
    • †Monograptus clingani – or unidentified related form
    • †Monograptus convolutus
    • †Monograptus crenularis – or unidentified comparable form
    • †Monograptus crinitus
    • †Monograptus cyphus
    • †Monograptus difformis – or unidentified comparable form
    • †Monograptus dubius
    • †Monograptus gregarius
    • †Monograptus incommodus – or unidentified comparable form
    • †Monograptus involutus – or unidentified comparable form
    • †Monograptus nilssoni
    • †Monograptus noyesensis
    • †Monograptus pacificus
    • †Monograptus praedubius – or unidentified related form
    • †Monograptus priodon
    • †Monograptus pseudodubius
    • †Monograptus raitzhainesis – or unidentified related form
    • †Monograptus revolutus
    • †Monograptus scanicus
    • †Monograptus tenuis
    • †Monograptus thomasi – or unidentified related form
    • †Monograptus tumescens
    • †Monograptus uncinatus
    • †Monograptus undulatus
    • †Monograptus varians
    • †Monograptus vulgaris – or unidentified comparable form
    • †Monograptus yukonensis
  • †Monolaminospongia – type locality for genus
    • †Monolaminospongia gigantia – type locality for species
  • †Monorakos
    • †Monorakos kledos – type locality for species
  • †Morania
    • †Morania nixonforkensis – type locality for species
    • †Morania wagneri – type locality for species
  • Fossilized shell of the Devonian brachiopod Mucrospirifer
    †Mucrospirifer
    • †Mucrospirifer refugiensis – type locality for species
  • †Multiconus
  • †Multisolenia
  • †Murchisonia
  • †Myalina
  • †Myriospirifer
    • †Myriospirifer myriofila – type locality for species
  • †Mytilarca
    • †Mytilarca boucoti – type locality for species

N
  • †Nankinella
  • †Nanochilina
    • †Nanochilina gubanovi – type locality for species
  • †Nanukidium
    • †Nanukidium cunninghamensis – or unidentified comparable form
  • †Naticella
  • Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis
    †Naticopsis
    • †Naticopsis bowsheri
    • †Naticopsis carleyana – or unidentified related form
    • †Naticopsis suturicompta
  • †Nazarovella
  • †Nemagraptus
    • †Nemagraptus gracilis
  • †Nematosalpinx
    • †Nematosalpinx dichotomica
    • †Nematosalpinx hormathodes – type locality for species
  • †Neochonetes
    • †Neochonetes granulifer – or unidentified related form
  • †Neogondolella
    • †Neogondolella idahoensis
  • Fossilized shell of the Carboniferous-Permian brachiopod Neospirifer
    †Neospirifer
    • †Neospirifer cameratus
    • †Neospirifer fasciger – or unidentified related form
    • †Neospirifer striatus – tentative report
  • †Nezamyslia
    • †Nezamyslia jucunda – or unidentified related form
  • †Nicollidina
    • †Nicollidina brevis
    • †Nicollidina remscheidensis – or unidentified comparable form
  • †Nileus
    • †Nileus armadillo
  • †Niobella
    • †Niobella kanauguki – type locality for species
  • †Nipponophyllum
    • †Nipponophyllum aseptatum – or unidentified comparable form
  • †Nodospira – type locality for genus
    • †Nodospira ornata – type locality for species
  • †Nordospira
    • †Nordospira vostokovae – type locality for species
  • †Nordotoechia – tentative report
  • †Nowakia
    • †Nowakia acuaria
    • †Nowakia barrandei
    • †Nowakia parabarrandei – type locality for species
  • †Nucleospira
    • †Nucleospira hecetensis
  • Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula
    Nucula
    • †Nucula shumardiana – or unidentified related form
  • Nuculana – tentative report
  • †Nuculites

O
  • †Oanduporella
    • †Oanduporella kuskokwimensis
  • †Odontomaria
    • †Odontomaria cheeneetnukensis – type locality for species
  • †Odontospirifer
  • †Oistodus
    • †Oistodus parallelus
    • †Oistodus venustus – or unidentified comparable form
  • †Olenaspella
    • †Olenaspella evansi
  • †Oncagnostus
    • †Oncagnostus tumidosus
  • †Onchonotopsis
    • †Onchonotopsis occidentalis – type locality for species
  • †Oonoceras
  • †Opsiconidion
  • †Orbiculoidea
  • †Orecopia
    • †Orecopia mccoyi – or unidentified comparable form
  • †Oriostoma
    • †Oriostoma angulatum – or unidentified comparable form
    • †Oriostoma princeps
  • †Orthis
    • †Orthis arcuata – or unidentified comparable form
  • †Orthoceras
    • †Orthoceras anguliferas – or unidentified comparable form
  • †Orthograptus
    • †Orthograptus bellulus
    • †Orthograptus calcaratus
    • †Orthograptus eberleini
    • †Orthograptus insectiformis
    • †Orthograptus mutabilis – or unidentified comparable form
    • †Orthograptus quadrimucronatus
    • †Orthograptus truncatus
    • †Orthograptus vesiculosus
  • †Orthonota
  • †Orthonychia
  • †Orthophyllum – tentative report
  • †Orthotetes
    • †Orthotetes chemungensis – or unidentified comparable form
    • †Orthotetes crenistria
    • †Orthotetes keokuk – or unidentified related form
  • †Orthotichia – tentative report
    • †Orthotichia morganiana – or unidentified related form
  • †Ortonia – tentative report
  • †Oulodus
  • †Overtonia – tentative report
    • †Overtonia fimbriata – or unidentified related form
  • †Ozarkodina
    • †Ozarkodina confluens
    • †Ozarkodina eberleini – type locality for species
    • †Ozarkodina paucidentata – or unidentified comparable form

P
  • †Pachyfavosites
  • †Pachyphloia
  • †Pachypora
  • †Pachystrophia
    • †Pachystrophia devexa – or unidentified comparable form
    • †Pachystrophia gotlandicus
  • †Paeckelmanella
    • †Paeckelmanella dieneri – or unidentified related form
  • †Paffrathopsis
    • †Paffrathopsis nana – or unidentified related form
  • Fossil of the Cambrian trilobite Pagetia
    †Pagetia
  • †Palaeolima
    • †Palaeolima retifera – or unidentified related form
  • †Palaeophyllum – or unidentified comparable form
  • †Palaeoscheda
    • †Palaeoscheda crassimuralis
  • †Palaeowingella – type locality for genus
    • †Palaeowingella farewellensis – type locality for species
  • †Palaeozygopleura
  • †Paleofavosites
  • †Paleoxyphostylus
    • †Paleoxyphostylus variospina
  • †Palliseria
    • †Palliseria robusta
  • †Panderodus
    • †Panderodus gracllis – or unidentified comparable form
  • †Pandorinellina
    • †Pandorinellina exigna
    • †Pandorinellina exigua
    • †Pandorinellina expansa
    • †Pandorinellina steinhornensis
  • †Panenka
  • †Paracybantyx
    • †Paracybantyx occidentalis – type locality for species
  • Fossil of the Cambrian trilobite Paradoxides
    †Paradoxides
  • †Parafusulina – tentative report
  • †Paraglossograptus
    • †Paraglossograptus tentaculatus – or unidentified comparable form
  • †Paraliospira
    • †Paraliospira angulata
    • †Paraliospira mundula
    • †Paraliospira planata – or unidentified related form
  • †Parallelodon
  • †Paraparchites
    • †Paraparchites carbonarius – or unidentified related form
  • †Paraphillipsia
    • †Paraphillipsia aglypta – type locality for species
  • †Parapugnax
    • †Parapugnax schmidti
  • †Pararachnastraea
    • †Pararachnastraea gracilis – or unidentified related form
  • †Parasolenopleura
  • †Parastriatopora
  • †Parawedekindellina
    • †Parawedekindellina pechorica – or unidentified comparable form
  • †Parehmania
    • †Parehmania lata – or unidentified comparable form
  • †Parisograptus
    • †Parisograptus caduceus
  • †Paronaella – tentative report
    • †Paronaella triporosa
  • †Paupospira
    • †Paupospira burginensis – or unidentified comparable form
  • Fossils of the Late Devonian-Permian fern-like fronds Pecopteris
    †Pecopteris
    • †Pecopteris arborescens
    • †Pecopteris hemitelioides
    • †Pecopteris unita
  • †Pedderia – type locality for genus
    • †Pedderia fragosa – type locality for species
  • †Pelekysgnathus
    • †Pelekysgnathus klamathensis
  • †Pelypora
  • †Peneckiella
  • †Penekiella
  • †Pentamerella
  • Fossilized shell of the Silurian-Middle Devonian brachiopod Pentamerus
    †Pentamerus
  • †Peridon
    • †Peridon aculeatus
  • †Perimecocoelia
    • †Perimecocoelia semicostata
  • †Permophricodothyris
    • †Permophricodothyris nodosa – or unidentified comparable form
  • †Pernipecten
  • †Pernopecten
    • †Pernopecten aviculatus – or unidentified related form
    • †Pernopecten ohioensis – or unidentified related form
  • †Peronopsis
    • †Peronopsis gaspensis – or unidentified comparable form
  • †Petalograptus
    • †Petalograptus minor
    • †Petalograptus palmeus
  • †Petrozium
  • †Phacellophyllum
  • Fossil of the Cambrian trilobite Phalagnostus
    †Phalagnostus
    • †Phalagnostus bituberculatus
  • †Phanerotrema
  • †Phaulactis
  • †Phillipsastrea
  • †Phillipsia
    • †Phillipsia bufo – tentative report
    • †Phillipsia majus – type locality for species
    • †Phillipsia megalopos – type locality for species
  • †Pholadostrophia – tentative report
  • †Pholidocidaris
  • †Phragmodus
  • †Phragmorthis
    • †Phragmorthis buttsi
  • †Phricodothyris
    • †Phricodothyris guadalupensis – or unidentified related form
  • Fossil of the Early Ordovician graptolite Phyllograptus
    †Phyllograptus
    • †Phyllograptus anna – or unidentified comparable form
  • †Phylloporella – tentative report
  • †Pinacites
    • †Pinacites jugleri
  • †Pinegathyris – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Pinegathyris royssiana – or unidentified related form
  • †Pinna
  • †Pinnatopora
  • †Plagioglypta
  • †Planitrochus
  • †Plasmophyllum
  • Fossilized shell of the Silurian-Early Triassic sea snail Platyceras
    †Platyceras
  • †Platycrinites
    • †Platycrinites nikondaense – type locality for species
  • †Platycrinus
  • †Platyschisma – tentative report
  • Pleurotomaria
  • †Plicogypa
    • †Plicogypa kayseri – or unidentified comparable form
  • Various conodont elements, including those of Polygnathus (specimens 8, 10, and 11)
    †Polygnathus
    • †Polygnathus alexanderensis
    • †Polygnathus angusticostatus
    • †Polygnathus angustipennatus
    • †Polygnathus aspelundi
    • †Polygnathus borealis
    • †Polygnathus brevis
    • †Polygnathus churkini
    • †Polygnathus costatus
    • †Polygnathus eberleini
    • †Polygnathus eiflius
    • †Polygnathus inversus
    • †Polygnathus kennettensis
    • †Polygnathus linguiformis
    • †Polygnathus pacificus
    • †Polygnathus parawebbi
    • †Polygnathus perbonus – or unidentified related form
    • †Polygnathus praetrigonicus
    • †Polygnathus pseudofoliatus
    • †Polygnathus robusticostatus
    • †Polygnathus samueli
    • †Polygnathus sinuosus
    • †Polygnathus trigonicus
    • †Polygnathus unicornis
    • †Polygnathus xylus
  • †Polyplacospongia – type locality for genus
    • †Polyplacospongia nodosa – type locality for species
  • †Polypora
  • †Polythalamia
    • †Polythalamia americana
  • †Prampyx
    • †Prampyx difformis
  • †Prioniodina
    • †Prioniodina flabellum
  • †Prisochiton
  • †Proampyx
    • †Proampyx acuminatus
  • †Prodentalium
  • †Productella
    • †Productella hallana
  • †Productus
    • †Productus burlingtonesis – or unidentified related form
    • †Productus gallatinenesis – or unidentified related form
    • †Productus giganteus
    • †Productus gruenwaldti – or unidentified related form
    • †Productus hirsutiformis
    • †Productus inflatus – or unidentified related form
    • †Productus jakovlevi – or unidentified related form
    • †Productus longus – or unidentified related form
    • †Productus mesialis – or unidentified related form
    • †Productus ovatus – tentative report
    • †Productus sampsoni – or unidentified related form
    • †Productus samsoni – or unidentified related form
    • †Productus setiger – or unidentified related form
    • †Productus striatus – or unidentified related form
  • Restoration of the Silurian trilobite Proetus
    †Proetus
    • †Proetus romanooski
  • †Prohedinia
    • †Prohedinia brevifrons
  • †Protathyris
    • †Protathyris pacificana
  • †Proteoceras
    • †Proteoceras obliquum
    • †Proteoceras tubulara
  • †Protolonsdaleiastraea
    • †Protolonsdaleiastraea cargalensis – or unidentified related form
  • †Protowentzelella
    • †Protowentzelella cystosa
  • †Pseudagnostus
    • †Pseudagnostus communis
  • †Pseudamplexus
    • †Pseudamplexus princeps – or unidentified comparable form
  • †Pseudoalbaillella
    • †Pseudoalbaillella longicornis – or unidentified related form
  • Fossil of the Silurian-Devonian horn coral Pseudoamplexus
    †Pseudoamplexus
    • †Pseudoamplexus altaicus
  • †Pseudobelodina
    • †Pseudobelodina adentata – or unidentified comparable form
    • †Pseudobelodina vulgaris – or unidentified related form
  • †Pseudobornia
    • †Pseudobornia ursina
  • †Pseudoclimacograptus
    • †Pseudoclimacograptus marathonensis – or unidentified comparable form
    • †Pseudoclimacograptus scharenbergi
    • †Pseudoclimacograptus undulatus – or unidentified comparable form
  • †Pseudocryptaenia – tentative report
    • †Pseudocryptaenia majewskwi – type locality for species
  • †Pseudodoliolina
    • †Pseudodoliolina oliviformis
  • †Pseudofusulinella
    • †Pseudofusulinella praeantiqua – or unidentified comparable form
  • †Pseudoharttina
    • †Pseudoharttina kayi – type locality for species
  • Fossilized shell of a Pseudomelania sea snail
    †Pseudomelania
  • †Pseudomicroplasma – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Pseudomonotis – tentative report
  • †Pseudomphalotrochus
    • †Pseudomphalotrochus linsleyi
  • †Pseudophillipsia – tentative report
  • †Pseudophorus
    • †Pseudophorus profundus – or unidentified comparable form
  • †Pseudoporefieldia
    • †Pseudoporefieldia micella
  • †Pseudotryplamsa – tentative report
    • †Pseudotryplamsa altaica – or unidentified comparable form
  • †Pseudotryplasma
    • †Pseudotryplasma altaica – or unidentified comparable form
    • †Pseudotryplasma altaicus – or unidentified comparable form
  • †Psilocamara
  • Fossil of the primitive Devonian vascular plant Psilophyton
    †Psilophyton
  • †Pteria – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Pterinea
  • †Pterinopecten
  • †Pterocephalia
    • †Pterocephalia constricta – type locality for species
  • †Pterospirifer
    • †Pterospirifer alatus
  • †Ptychagnostus
    • †Ptychagnostus aculeatus
    • †Ptychagnostus puncturosus
  • †Ptychoglyptus
    • †Ptychoglyptus alaensis – type locality for species
    • †Ptychoglyptus pauciradiatus
  • †Ptychomphalina
  • †Ptychophyllum
  • †Ptychopleurella
    • †Ptychopleurella uniplicata
  • †Pugnax
    • †Pugnax pugnus
    • †Pugnax utah – or unidentified related form
  • †Pulchratia – tentative report
  • †Purdonella – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Purdonella nikitini – or unidentified related form
  • †Pustula
    • †Pustula alternata – or unidentified related form
    • †Pustula biseriata – or unidentified related form
    • †Pustula blairi – or unidentified related form
    • †Pustula carringtoniana – or unidentified related form
    • †Pustula concentrica – or unidentified related form
    • †Pustula distorta – or unidentified related form
    • †Pustula eximia – or unidentified related form
    • †Pustula indianensis – or unidentified related form
    • †Pustula irginae – or unidentified related form
    • †Pustula magnituberculata – or unidentified related form
    • †Pustula millespinosa – or unidentified related form
    • †Pustula morbilliana – or unidentified related form
    • †Pustula nikitini – or unidentified related form
    • †Pustula pilosa – or unidentified related form
    • †Pustula plicatilis – or unidentified related form
    • †Pustula pseudaculeata – or unidentified related form
    • †Pustula punctata
    • †Pustula rugata – or unidentified related form
    • †Pustula semicostata – or unidentified related form
    • †Pustula spinulosa – or unidentified related form
    • †Pustula subhorrida – or unidentified related form
    • †Pustula tuberculata – or unidentified related form
    • †Pustula wallaciana – or unidentified related form
    • †Pustula wallacianus – or unidentified related form
  • †Pycnactis – tentative report
  • †Pycnolithus – tentative report
  • †Pylentonema
    • †Pylentonema antiqua – or unidentified comparable form

Q
  • †Quadricarina
    • †Quadricarina noklebergi – type locality for species
  • †Quasifusulina
    • †Quasifusulina longissima – or unidentified related form
  • †Quebecaspis
    • †Quebecaspis aspinosa – type locality for species
    • †Quebecaspis conifrons – tentative report

R
  • †Rachiopteris
  • †Raphistoma – tentative report
    • †Raphistoma alaskensis – type locality for species
  • †Raphistomina
    • †Raphistomina rugata – or unidentified comparable form
  • †Rastrites
    • †Rastrites longispinus – or unidentified comparable form
    • †Rastrites peregrinus – or unidentified related form
  • Fossil of the Early Ordovician-Permian benthic alga Receptaculites
    †Receptaculites
  • †Rectograptus
    • †Rectograptus amplexicaulis
  • †Remipyga
  • †Renalcis
    • †Renalcis tuberculatus – or unidentified comparable form
  • †Reteograptus
    • †Reteograptus geinitzianus
  • †Reticularia
    • †Reticularia setigera – or unidentified related form
  • †Reticulariopsis
    • †Reticulariopsis bicollina
  • †Retiolites
    • †Retiolites geinitzianus
  • †Retispira
    • †Retispira sullivani
  • †Reuschia
  • †Rhabdomeson
  • †Rhabdostropha
    • †Rhabdostropha primitiva
  • †Rhaphidophyllum
  • †Rhenozyga
    • †Rhenozyga reifenstuhli – type locality for species
  • †Rhineoderma – tentative report
    • †Rhineoderma wortheni – or unidentified related form
  • †Rhipidomella
    • †Rhipidomella carbonaria – or unidentified related form
    • †Rhipidomella nevadensis – or unidentified related form
    • †Rhipidomella uralica – or unidentified related form
  • †Rhizophyllum
    • †Rhizophyllum schischkaticum
  • †Rhombopora
  • Fossilized shell of the Silurian-Eocene articulate brachiopod Rhynchonella
    †Rhynchonella
    • †Rhynchonella amalthea – or unidentified comparable form
    • †Rhynchonella livonica
  • †Rhynchopora
    • †Rhynchopora beecheri – or unidentified related form
    • †Rhynchopora geinitziana – or unidentified related form
    • †Rhynchopora kochi – or unidentified comparable form
    • †Rhynchopora nikitini – or unidentified related form
  • †Rhytiodentalium
    • †Rhytiodentalium kentuckyensis – or unidentified comparable form
  • †Richardsonella
  • †Richthofenia
    • †Richthofenia lawrenciana – or unidentified related form
  • †Rigbyetia
    • †Rigbyetia obconica
  • †Roadoceras
    • †Roadoceras roadense – or unidentified comparable form
  • †Roemeria – or unidentified comparable form
  • †Rothpletzella
    • †Rothpletzella gotlandica
  • †Rousseauspira
    • †Rousseauspira teicherti
  • †Rugaltarostrum
    • †Rugaltarostrum congregabile – type locality for species
  • †Rugatia
    • †Rugatia occidentalis – or unidentified related form
  • †Rugivestis
    • †Rugivestis girtyi – type locality for species
  • †Rugosatrypa
    • †Rugosatrypa flexibilis

S
  • †Saffordophyllum
  • †Salairophyllum
  • †Sanguinolites
  • †Sannemannia
    • †Sannemannia glenisteri – or unidentified related form
  • †Sarcinula
  • †Savagerhynchus – type locality for genus
    • †Savagerhynchus hecetaensis – type locality for species
  • †Scalites
    • †Scalites tellerensis – type locality for species
  • †Scaphina – tentative report
  • †Scaphorthis
    • †Scaphorthis virginiensis
  • †Scharfenbergia
    • †Scharfenbergia concentrica
    • †Scharfenbergia impella
    • †Scharfenbergia ruestae
    • †Scharfenbergia tailleurense
  • †Scharyia
  • †Schizodus
  • †Schizophoria
    • †Schizophoria fragilis – or unidentified comparable form
    • †Schizophoria macfarlani
    • †Schizophoria striatula
    • †Schizophoria swallowi – or unidentified related form
  • †Schizoproetoides – tentative report
  • †Schmidtella
  • †Schrenkiella
    • †Schrenkiella schrenki – or unidentified comparable form
  • †Schuchertella
  • †Schwagerina
    • †Schwagerina jenkinsi – or unidentified comparable form
  • †Sciophyllum
    • †Sciophyllum alaskaensis
    • †Sciophyllum lambarti
  • †Scotoharpes
    • †Scotoharpes raaschi – or unidentified related form
  • †Semicoccinium – tentative report
  • †Semicyclus
    • †Semicyclus brabbi
  • †Semisphaerocephalus
    • †Semisphaerocephalus latus – type locality for species
  • †Septabrunsiina
  • †Septacamera
    • †Septacamera kutorgae
    • †Septacamera opitula – tentative report
    • †Septacamera pybensis – type locality for species
    • †Septacamera stupenda – type locality for species
  • †Septaglomospiranella
  • †Septimyalina
    • †Septimyalina perattenuata – or unidentified related form
  • †Septopora – tentative report
  • †Serpulospira
  • †Shumardella
    • †Shumardella missouriensis
  • †Sibirirhynchia
    • †Sibirirhynchia alata
  • †Sibiritia
  • †Sibiritoechia – tentative report
    • †Sibiritoechia sylvia
  • †Sieberella
  • †Sigmocheilus – tentative report
    • †Sigmocheilus compressus – type locality for species
  • †Sinutropis
    • †Sinutropis esthetica – type locality for species
    • †Sinutropis spiralis – type locality for species
  • †Siphonophrentis – tentative report
  • †Siskiyouspira
  • †Skenidioides
    • †Skenidioides multifarius
  • †Smithiphyllum
  • †Sociophyllum
    • †Sociophyllum glomerulatum – or unidentified comparable form
  • †Solenopleura
  • Fossils of the red alga Solenopora
    †Solenopora
    • †Solenopora compacta
    • †Solenopora filiformis
  • †Solenopsis – tentative report
  • †Sowerbina
    • †Sowerbina timanica – or unidentified comparable form
  • †Sowerbyella
    • †Sowerbyella praecursor – type locality for species
    • †Sowerbyella rectangularis – type locality for species
  • †Spathognathodus
    • †Spathognathodus inclinatus
  • †Spencella
    • †Spencella acanthina
    • †Spencella montanensis
  • †Sphaerina
    • †Sphaerina congregata
  • Assemblage of fossils of the Ordovician-Triassic blue-green alga Sphaerocodium
    †Sphaerocodium
  • †Sphaerodoma
  • †Sphenosteges
    • †Sphenosteges hispidus – or unidentified related form
  • †Spinatrypa
    • †Spinatrypa spinosa
    • †Spinatrypa trulla – or unidentified comparable form
  • †Spinicharybdis
    • †Spinicharybdis boucoti – type locality for species
    • †Spinicharybdis krizi – type locality for species
  • †Spinulrichospira – type locality for genus
    • †Spinulrichospira cheeneetnukensis – type locality for species
    • †Spinulrichospira churkini – type locality for species
  • Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer
    †Spirifer
    • †Spirifer allatus – or unidentified related form
    • †Spirifer anossofi
    • †Spirifer bifurcatus – or unidentified related form
    • †Spirifer bisulcatus – or unidentified related form
    • †Spirifer cheiropteryx – or unidentified comparable form
    • †Spirifer disjunctus
    • †Spirifer duplicicostatus
    • †Spirifer hians
    • †Spirifer incertus – or unidentified related form
    • †Spirifer indeferens
    • †Spirifer keokuk – or unidentified related form
    • †Spirifer missouriensis – or unidentified related form
    • †Spirifer mosquensis – or unidentified related form
    • †Spirifer pellensis – or unidentified related form
    • †Spirifer schellwieni – or unidentified related form
    • †Spirifer subcomprimatus
    • †Spirifer thetides – or unidentified comparable form
    • †Spirifer thetidis
  • †Spiriferella
    • †Spiriferella arctica
    • †Spiriferella artica
    • †Spiriferella interplicata – or unidentified related form
    • †Spiriferella keilhavii
    • †Spiriferella pseudotibetana
  • †Spiriferellina
    • †Spiriferellina cristata – or unidentified related form
  • †Spiriferina
    • †Spiriferina holtzapfeli – or unidentified related form
    • †Spiriferina panderi – or unidentified related form
  • †Spiriferinaella
    • †Spiriferinaella artiensis – or unidentified related form
    • †Spiriferinaella tastubensis – or unidentified related form
  • Modern shells of the polychaete worm Spirorbis
    Spirorbis
  • †Spongophyllum
  • †Spyroceras
  • †Squamularia
  • †Stauria
  • †Stegocoelia – tentative report
  • †Stelliporella
  • †Stenoloron
    • †Stenoloron swallovana – or unidentified related form
  • †Stenopora
  • †Stenorhynchia
  • †Stenoscisma
    • †Stenoscisma bisinuata – or unidentified related form
    • †Stenoscisma crumena – or unidentified related form
    • †Stenoscisma margaritovi
    • †Stenoscisma mutabilis – or unidentified related form
    • †Stenoscisma purdoni – or unidentified related form
    • †Stenoscisma spitzbergiana
  • †Stictopora
  • †Stigmosphaerostylus
    • †Stigmosphaerostylus itsukaichiensis
  • †Stipespongia – type locality for genus
    • †Stipespongia laminata – type locality for species
  • †Straparollina
    • †Straparollina circe
    • †Straparollina eurydice – or unidentified comparable form
  • †Straparollus
    • †Straparollus spergenensis – or unidentified related form
  • †Streblopteria
    • †Streblopteria montpelierensis – or unidentified related form
  • †Streblotrypa – tentative report
  • †Streptacis
    • †Streptacis subgracilis – or unidentified related form
  • †Streptorhynchus
    • †Streptorhynchus pelargonatum – or unidentified related form
    • †Streptorhynchus pelargonatus – or unidentified related form
  • †Streptotrochus
    • †Streptotrochus amicus – or unidentified comparable form
  • †Striatifera
    • †Striatifera ischmensis – or unidentified related form
  • †Striatopora
  • †Striatostyliolina
  • †Stringocephalus
    • †Stringocephalus burtini
  • †Stringophyllum
  • †Strobeus
  • †Stromatopora
  • †Strophalosia – tentative report
  • Fossilized shell of the Ordovician-Silurian brachiopod Strophomena
    †Strophomena
    • †Strophomena comitans
    • †Strophomena fugax – or unidentified comparable form
    • †Strophomena planobesa
    • †Strophomena stephani
  • †Strophonella
  • †Strophostylus
  • †Styliolina
    • †Styliolina fissurella
  • †Subanarcestes – tentative report
  • †Sumatrina – tentative report
  • †Svalbardia
    • †Svalbardia toulai
  • †Sycidium
  • Fossil of the Devonian tabulate coral Syringopora
    †Syringopora
    • †Syringopora formosa – type locality for species
    • †Syringopora obesa
    • †Syringopora rockfordensis
    • †Syringopora schulzei
  • †Syringoporella
    • †Syringoporella rara – type locality for species
  • †Syringoporinus
  • †Syringothyris

T
  • †Tabularia
  • †Tabulophyllum
  • Fossils of the Devonian plant stem morphogenus Taeniocrada
    †Taeniocrada
  • †Taimyrophyllum
  • †Taimyrrhynx
    • †Taimyrrhynx taimyrico
  • †Taphrorthis
    • †Taphrorthis immatura
  • †Tchaiaspis
  • †Tcherskidium
    • †Tcherskidium unicum
  • †Teganium
  • †Teguliferina – tentative report
  • †Teichertina
  • †Telinopsis
  • Fossilized shell of the Early Ordovician-Late Devonian probable mollusc Tentaculites
    †Tentaculites
  • †Tenticospirifer
    • †Tenticospirifer wadleighensis
  • †Terrakea – tentative report
  • †Tersella
    • †Tersella sainsburyi – type locality for species
  • †Tetradium
  • †Tetragraptus
    • †Tetragraptus quadribrachiatus – or unidentified comparable form
  • †Tetraprioniodus – tentative report
  • †Thamniscus – tentative report
  • †Thamnophyllum
  • †Thamnopora
  • †Thamnosia
    • †Thamnosia arctica
  • †Thecostegites
  • †Theodossia
    • †Theodossia albertoensis
  • †Tholifrons – type locality for genus
    • †Tholifrons adevna – type locality for species
    • †Tholifrons minutus – type locality for species
  • †Thysanophyllum
    • †Thysanophyllum astraeiforme
    • †Thysanophyllum orientale
  • †Tiramnia
    • †Tiramnia greenlandica
  • †Tityrophora – tentative report
  • †Tollina
  • †Tortodus
    • †Tortodus kockelianus
    • †Tortodus kockeliensis
  • †Torynifer
    • †Torynifer pseudolineatus – or unidentified related form
  • †Tostonia
  • †Trabeculites
  • †Transridgeia – type locality for genus
    • †Transridgeia costata – type locality for species
  • †Trapezophyllum
  • †Tremanotus
  • †Trepospira – tentative report
  • †Triaenosphaera
    • †Triaenosphaera hebes
  • Restoration showing the top (left) and underside of the Late Ordovician trilobite Triarthrus
    †Triarthrus
  • †Trigonirhynchia
    • †Trigonirhynchia ventricosa – or unidentified related form
  • †Triplophyllum
  • †Triticites
  • †Trochomphalus
    • †Trochomphalus dimidiatus
  • †Trochonema
    • †Trochonema retrorsum – or unidentified related form
    • †Trochonema wartheni
  • †Trochonemella
    • †Trochonemella churkini – type locality for species
    • †Trochonemella reusingi – type locality for species
  • †Tropidodiscus
  • †Tryplasma
  • †Tscherkidium
  • †Tuberculatella
    • †Tuberculatella tuberculata – or unidentified related form
  • †Tubina
  • †Turbonellina
    • †Turbonellina chatzepovkensis – or unidentified related form
  • †Turbospongia – type locality for genus
    • †Turbospongia biperforata – type locality for species
  • †Turrilepas
    • †Turrilepas type locality for species A – informal
  • †Tuxekanella
    • †Tuxekanella simplex

U
  • †Ulungaratoconcha – type locality for genus
    • †Ulungaratoconcha heidelbergeri – type locality for species
  • †Uncinulus – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Uncinulus polaris
  • †Undatrypa
  • †Uniconus
    • †Uniconus livnensis
    • †Uniconus orbiculus
  • †Uraloceras
    • †Uraloceras burtiense
    • †Uraloceras fedorowi
    • †Uraloceras involutum
    • †Uraloceras nevadense

V
  • †Verbeekina
  • †Verneuilia
    • †Verneuilia langenstrasseni – type locality for species
  • †Virgulaspongia – type locality for genus
    • †Virgulaspongia uniforma – type locality for species
  • †Viriatellina – or unidentified comparable form
    • †Viriatellina gemuendina

W
  • †Waagenites
    • †Waagenites trapezoidalis – or unidentified related form
  • †Waagenoconcha
    • †Waagenoconcha humboldti
    • †Waagenoconcha irginae – or unidentified comparable form
    • †Waagenoconcha irginaeformis – or unidentified comparable form
    • †Waagenoconcha payeri
    • †Waagenoconcha tastubensis
  • †Warrenella
  • †Wedekindellina
    • †Wedekindellina uralica
  • †Westbroekina
    • †Westbroekina chacoensis
  • †Westergaardodina
  • †Whidbornella
    • †Whidbornella lachrymosa – or unidentified comparable form
  • †Whitfieldella
  • †Wilberrya
  • †Winterbergiella
    • †Winterbergiella binodosa – or unidentified related form
  • Restoration of the Permian shark Wodnika
    †Wodnika
    • †Wodnika borealis

X
  • †Xenambonites
    • †Xenambonites revelatus
  • †Xystriphyllum
    • †Xystriphyllum devonicum
    • †Xystriphyllum gorskii
    • †Xystriphyllum schluteri

Y
  • †Yabeina
  • †Yacutipora
  • †Yakovlevia
    • †Yakovlevia greenlandica – or unidentified comparable form
    • †Yakovlevia mammata
    • †Yakovlevia multistriata – or unidentified related form

Z
  • †Zacanthoides
  • †Zamiopteris
  • †Zaphrenthis
    • †Zaphrenthis gigantea
  • †Zelophyllum
  • †Zonophyllum
  • †Zygopleura
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References
    • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.
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