List of the Mesozoic life of Alaska

This list of the Mesozoic 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 252.17 and 66 million years of age.

A

• Acila
• †Actinoceramus
  • †Actinoceramus concentricus
  • †Actinoceramus sulcatus

• 

  Life restoration of the Late Cretaceous dome-headed dinosaur Alaskacephale and inset diagram depicting it with an anachronistic human to scale

  †Alaskacephale – type locality for genus
  • †Alaskacephale gangloffi – type locality for species
• †Allocotidus – type locality for genus
  • †Allocotidus bruesi – type locality for species
• †Alpinophyllia
  • †Alpinophyllia flexuosa
• †Amaltheus
• †Amblydactylus
• †Amblysiphonella
• †Amoeboceras
• †Ampakabastraea
  • †Ampakabastraea cowichanensis
  • †Ampakabastraea nodosa – or unidentified comparable form
• Amusium
• †Anagaudryceras
  • †Anagaudryceras auranium
  • †Anagaudryceras aurarium
  • †Anagaudryceras inflatus
  • †Anagaudryceras sacya – type locality for species

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Anapachydiscus

  †Anapachydiscus
  • †Anapachydiscus nelchinensis – type locality for species
• †Anatomites
  • †Anatomites externiplicatus
  • †Anatomites septentrionalis – type locality for species
• †Andangularia
  • †Andangularia wilsoni – type locality for species
• †Anomia
• †Anoptychia – tentative report
• †Anthostylis
  • †Anthostylis acanthophora
• †Antiquilima – tentative report
• †Aopullina – tentative report
• †Aquilapollenites
  • †Aquilapollenites decorus
  • †Aquilapollenites fusiformis
  • †Aquilapollenites quadrilobus
  • †Aquilapollenites reticulatus
  • †Aquilapollenites scabridus
• †Arcestes
• †Archaeocidaris – tentative report
• †Archaeodictyomitra
  • †Archaeodictyomitra exigua – type locality for species
• †Archaeospongoprunum
  • †Archaeospongoprunum helense – type locality for species
• †Arcthoplites
  • †Arcthoplites belli
  • †Arcthoplites talkeetnanus
• Arctica – tentative report

• 

  Fossilized shells of the Middle Jurassic ammonoid cephalopod Arcticoceras

  †Arcticoceras
• †Arctocephalites
  • †Arctocephalites alticostus
  • †Arctocephalites costidensus – type locality for species
  • †Arctocephalites pompeckji
• †Arctoceras
  • †Arctoceras blomstrandi
  • †Arctoceras tuberculatum
  • †Arctoceras tuberculatus
• †Arctopteris
  • †Arctopteris kolymensis – or unidentified related form
  • †Arctopteris rarinervis
• †Areaseris
  • †Areaseris nevadensis
• †Arieticeras
  • †Arieticeras domarense – or unidentified related form

• 

  Fossilized shell of the Early Jurassic ammonoid cephalopod Arnioceras

  †Arnioceras
  • †Arnioceras arnouldi – or unidentified comparable form
• †Arpadites – tentative report
• †Aspenites
  • †Aspenites acutus
• Astarte
  • †Astarte carlottensis
• †Asthenoceras
  • †Asthenoceras nannodes – or unidentified related form
• †Astraeomorpha
  • †Astraeomorpha confusa
  • †Astraeomorpha crassisepta
• †Astrocoenia – tentative report
• †Atractites
• †Atreta
• †Aucella
  • †Aucella okensis
  • †Aucella spitiensis
  • †Aucella subokensis
• †Aucellina
• Avicula
  • †Avicula soperi

• 

  Mold fossil of a shell of the Early Devonian-Late Triassic bivalve Aviculopecten

  †Aviculopecten
• †Azonia
  • †Azonia cribrata
  • †Azonia pulchella
  • †Azonia strictiparva

B

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Baculites

  †Baculites
  • †Baculites occidentalis
• †Badouxia
  • †Badouxia canadensis
  • †Badouxia columbiae
• †Bathysiphon
• †Belemnites
• †Betraccium
  • †Betraccium perilense – or unidentified related form
• †Bipedis
  • †Bipedis acrostylus
• †Biplica
• †Birisia
  • †Birisia alata
  • †Birisia ochotica
  • †Birisia oerstedtii – or unidentified comparable form
• †Bisulcocypridea
• †Bositra
  • †Bositra buchi – or unidentified comparable form
• †Bradfordia
  • †Bradfordia oppeliiformis – type locality for species
• †Brewericeras
  • †Brewericeras breweri
  • †Brewericeras hulenense
  • †Brewericeras hulense – or unidentified comparable form
• †Buchia
  • †Buchia bronni – or unidentified comparable form
  • †Buchia concentrica
  • †Buchia crassicolis
  • †Buchia crassicollis
  • †Buchia fischeriana – or unidentified related form
  • †Buchia keyserlingi
  • †Buchia mosquensis
  • †Buchia pacifica
  • †Buchia pallasi – or unidentified comparable form
  • †Buchia piochii
  • †Buchia rugosa
  • †Buchia solida
  • †Buchia sublaevis
• †Bullatimorphites
  • †Bullatimorphites varicostatum – type locality for species

C

• 

  Fossilized shell of the Middle Jurassic ammonoid cephalopod Cadoceras

  †Cadoceras
  • †Cadoceras bathomphalum – type locality for species
  • †Cadoceras catostoma
  • †Cadoceras chinitnense – type locality for species
  • †Cadoceras comma – type locality for species
  • †Cadoceras crassicostatum – type locality for species
  • †Cadoceras doroschini
  • †Cadoceras glabrum – type locality for species
  • †Cadoceras grewingki
  • †Cadoceras kialagvikense – type locality for species
  • †Cadoceras petelini
  • †Cadoceras schmidti
  • †Cadoceras tenuicostatum – type locality for species
  • †Cadoceras wosnessenskii

• 

  Fossilized shell of the Early Jurassic-Early Cretaceous ammonoid cephalopod Calliphylloceras

  †Calliphylloceras
  • †Calliphylloceras aldersoni – or unidentified comparable form
  • †Calliphylloceras freibrocki – type locality for species
  • †Calliphylloceras nizinanum – type locality for species
• †Callistopollenites
  • †Callistopollenites radiostriatus
• †Callizoniceras
• †Callospiriferina
  • †Callospiriferina tumida
• †Calycoceras
• †Camptonectes
  • †Camptonectes dettermani
• †Canadoceras
  • †Canadoceras kossmati – or unidentified comparable form
  • †Canadoceras newberryanum
  • †Canadoceras yokoyamai
• †Candonopsis – tentative report
• †Canutus – tentative report
  • †Canutus ingrahamensis
• †Capnuchosphaera
  • †Capnuchosphaera deweveri – or unidentified related form
  • †Capnuchosphaera lenticulata – or unidentified related form
  • †Capnuchosphaera mexicana
  • †Capnuchosphaera schenki
  • †Capnuchosphaera smithorum
  • †Capnuchosphaera theoloides – or unidentified related form
  • †Capnuchosphaera tricornis

• 

  Shells of modern Capulus cap sea snails

  Capulus – tentative report
• Cardinia
• Cardita – tentative report
• †Cassianella
  • †Cassianella cordillerana – type locality for species
  • †Cassianella gravinaensis – type locality for species
  • †Cassianella lingulata
• †Cavussurella
  • †Cavussurella grammi – type locality for species
• †Cedriplites
  • †Cedriplites canadensis

• 

  Life restoration of the Late Triassic-Middle Jurassic nautiloid cephalopod Cenoceras

  †Cenoceras
  • †Cenoceras imlayi – type locality for species
• †Cephalotaxopsis
  • †Cephalotaxopsis intermedia
• †Ceratites
• †Cercomya – tentative report
• †Ceriostella
  • †Ceriostella martini
  • †Ceriostella parva
• Cerithium – tentative report
• †Chandlerichthys – type locality for genus
  • †Chandlerichthys strickeri – type locality for species
• †Chinitnites
  • †Chinitnites parviformus – type locality for species
• Chlamys
• †Choffatia
• †Chondrites – tentative report
  • †Chondrites heeri – or unidentified comparable form
• †Chondrocoenia
  • †Chondrocoenia paradoxa – or unidentified comparable form
• †Chonetes – tentative report
• †Christitys
  • †Christitys martini – type locality for species
• †Chulitnacula
  • †Chulitnacula alaskana – type locality for species

• 

  Shell and spines of a Cidaris sea urchin

  Cidaris – tentative report
• †Cimolodon
• Cladophlebis
  • †Cladophlebis hirta – tentative report
• †Claraia
  • †Claraia stachei
• †Cleoniceras
  • †Cleoniceras overbecki – type locality for species
• †Clionitites – tentative report
• †Cobbanites
  • †Cobbanites talkeetnanus
• †Coccophyllum
• †Collonia
  • †Collonia occidentalis – or unidentified comparable form
• †Coniopteris
  • †Coniopteris arctica - or unidentified loosely related form
  • †Coniopteris saportana
• †Conucardia
• †Corum
  • †Corum perfectum
  • †Corum regium
  • †Corum speciosum
• †Cosmonautilus – tentative report
• †Costispiriferina
  • †Costispiriferina pittensis – or unidentified related form
• †Covracythere
  • †Covracythere binoda – type locality for species
  • †Covracythere gryci – type locality for species
• †Cranwellia
  • †Cranwellia rumseyensis
  • †Cranwellia striata
• †Crassistella
  • †Crassistella juvavica
  • †Crassistella parvula
  • †Crassistella vesiculosa – or unidentified comparable form
• †Crenipecten – tentative report
  • †Crenipecten crenulatus – or unidentified comparable form
• †Crucella
  • †Crucella magna – type locality for species
• †Ctenis
• †Ctenophyllum
  • †Ctenophyllum angustifolim – tentative report
• †Cuifia
  • †Cuifia marmorea – or unidentified comparable form
• †Curtoseris
  • †Curtoseris dunlapcanyonae
• †Cyathocoenia
• †Cycloceltites
  • †Cycloceltites arduini – or unidentified comparable form
• †Cylindroteuthis
• †Cypridea
• †Cyrtia
• †Cyrtina – report made of unidentified related form or using admittedly obsolete nomenclature

D

• 

  Life restoration of the Early Jurassic ammonoid cephalopod Dactylioceras

  †Dactylioceras
  • †Dactylioceras commune – or unidentified comparable form
  • †Dactylioceras kanense
• †Dagyspirifer – type locality for genus
  • †Dagyspirifer fascicostata – type locality for species
• †Damesites
  • †Damesites hetonaiensis
• †Daonella
• †Daxatina
  • †Daxatina canadensis – or unidentified comparable form
• Dentalina
• †Dentalium
• †Desmiophyllum
  • †Desmiophyllum magnum
  • †Desmiophyllum spp.
• †Desmoceras
  • †Desmoceras japonicum
• †Desmophyllites
  • †Desmophyllites diphylloides
• †Dettermania
  • †Dettermania truncata – type locality for species
• Dicotylophyllum
  • †Dicotylophyllum spp.
• †Dictyophyllum
  • †Dictyophyllum nilssoni

• 

  Restoration of several species of the Late Cretaceous ammonoid cephalopod Didymoceras

  †Didymoceras
  • †Didymoceras hornbyense – or unidentified related form
• †Dielasma – tentative report
  • †Dielasma chapini – type locality for species
• †Dieneroceras
  • †Dieneroceras dieneri
• †Dimyodon
  • †Dimyodon storrsi
• †Diplomoceras
  • †Diplomoceras notabile
  • †Diplomoceras notable
• †Discamphiceras
  • †Discamphiceras reissi – or unidentified related form
  • †Discamphiceras silberlingi – or unidentified comparable form
• †Discophyllites
  • †Discophyllites patens
• †Discotropites
  • †Discotropites davisi
  • †Discotropites mojsvarensis
  • †Discotropites sandlingensis
• †Distichomeandra
  • †Distichomeandra austriaca
  • †Distichomeandra minor
• †Distichophyllia
  • †Distichophyllia marmorea
  • †Distichophyllia melnikovae – type locality for species
  • †Distichophyllia norica
• Ditrupa
  • †Ditrupa cornu – type locality for species
• †Divatella
  • †Divatella robinsoni – type locality for species
• †Docidoceras
  • †Docidoceras camachoi – type locality for species
  • †Docidoceras longalvum – or unidentified related form
  • †Docidoceras paucinodosum – type locality for species
  • †Docidoceras widebayense – type locality for species

• 

  Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Douvilleiceras

  †Douvilleiceras
  • †Douvilleiceras mammillatum
• †Dromaeosaurus
  • †Dromaeosaurus albertensis

E

• †Edmontonia

• 

  Restoration of the Late Cretaceous duck-billed dinosaur Edmontosaurus annectens

  †Edmontosaurus – or unidentified related form
  • †Edmontosaurus saskatchewanensis
• †Eleganticeras
  • †Eleganticeras exaratum – or unidentified comparable form
• †Ellisonia
  • †Ellisonia triassica
• †Elymella – tentative report
  • †Elymella nuculoides – or unidentified comparable form
• †Elysastraea
  • †Elysastraea profunda
  • †Elysastraea vancouverensis
• †Enantigonathus
  • †Enantigonathus mungoensis
  • †Enantigonathus ziegleri
• †Entolium
  • †Entolium utukokense – type locality for species
  • †Entolium yukonensis – type locality for species
• †Entollum
• †Eocomoseris
  • †Eocomoseris ramosa
• †Eogunnarites
  • †Eogunnarites alaskaensis
  • †Eogunnarites alaskensis
• †Eolytoceras
  • †Eolytoceras tasekoi – or unidentified comparable form
• †Eopecten – tentative report
• †Epigondolella
  • †Epigondolella bidentata – or unidentified comparable form
• †Eptingium
  • †Eptingium manfredi – or unidentified comparable form
• †Equisetites
  • †Equisetites burejensis
• †Erdtmanipollis
  • †Erdtmanipollis procumbentiformis
• †Erycites
  • †Erycites howelli
• †Euaptetoceras
  • †Euaptetoceras amplectens
  • †Euaptetoceras nucleospinosum – or unidentified related form

• 

  Fossilized shell of the Late Cretaceous ammonoid cephalopod Eubostrychoceras

  †Eubostrychoceras
  • †Eubostrychoceras japonicum – or unidentified comparable form
• †Eudmetoceras
  • †Eudmetoceras eudmetum – or unidentified related form
• †Euflemingites
  • †Euflemingites cirratus
  • †Euflemingites romunderi
• †Eumorphotis
  • †Eumorphotis nationalis – type locality for species
• †Euomphaloceras
• †Euomphalus
• †Euphyllites – tentative report

F

• †Faguspollenites
  • †Faguspollenites granulatus
• †Fanninoceras
  • †Fanninoceras carlottense
  • †Fanninoceras fannini
  • †Fanninoceras maudense – or unidentified comparable form
• †Ferresium
• †Fibulapollis
• †Fissirhynchia
  • †Fissirhynchia fissicostata
• †Flaventia – tentative report
  • †Flaventia kukpowrukensis – type locality for species
• †Franziceras – tentative report
• †Freboldiceras – type locality for genus
  • †Freboldiceras singulare – type locality for species
• †Fresvillia
  • †Fresvillia teres – or unidentified related form

G

• †Gabbioceras
• †Gablonzeria
  • †Gablonzeria grandiosa
  • †Gablonzeria major
  • †Gablonzeria profunda

• 

  Fossilized shell of the Cretaceous ammonoid cephalopod Gaudryceras

  †Gaudryceras
  • †Gaudryceras denseplicatum – or unidentified related form
  • †Gaudryceras hobetsense
  • †Gaudryceras tenuiliratum
• †Gavellinella
  • †Gavellinella velascoensis – or unidentified comparable form
• †Germanonautilus
  • †Germanonautilus brooksi – type locality for species
• †Gervillia
  • †Gervillia spp.
• Ginkgo

  • 

    Restored foliage of the Late Cretaceous-Miocene ginkgo tree Ginkgo adiantoides

    †Ginkgo adiantoides - or unidentified loosely related form
  • †Ginkgo concinna - or unidentified loosely related form
• Gleichenia
  • †Gleichenia pseudocrenata – or unidentified comparable form
• †Glossites – tentative report
  • †Glossites lingualis – or unidentified comparable form
• †Goniomya – tentative report
• †Gonodon – tentative report
• †Gowericeras
  • †Gowericeras snugharborense – type locality for species
  • †Gowericeras spinosum – type locality for species
• †Grammatodon
• †Grantziceras
  • †Grantziceras affine
  • †Grantziceras glabrum

• 

  Interior and exterior of a fossilized shell of the Late Triassic-Eocene marine bivalve Gryphaea

  †Gryphaea
  • †Gryphaea arcuataeformis
  • †Gryphaea arcusta – or unidentified comparable form
  • †Gryphaea cymbium – or unidentified comparable form
  • †Gryphaea impressimarginata
  • †Gryphaea keilhaui – or unidentified comparable form
  • †Gryphaea rockymontana
• †Gulielmiceras
  • †Gulielmiceras alaskanum – type locality for species
• Guttulina
• †Gymnocodium
  • †Gymnocodium bellerophontis
• †Gypsonictops – or unidentified comparable form
• Gyroidinoides

H

• †Halobia
  • †Halobia alaskana – type locality for species
  • †Halobia austriaca
  • †Halobia brooksi – type locality for species
  • †Halobia cordillerana
  • †Halobia dalliana – type locality for species
  • †Halobia dilatata
  • †Halobia distincta
  • †Halobia fallax
  • †Halobia halorica
  • †Halobia lineata
  • †Halobia ornatissima
  • †Halobia septentrionalis – type locality for species
  • †Halobia superba
  • †Halobia sustriaca
  • †Halobia symmetrica – type locality for species
• †Halomitra – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Halomitra triadica
• †Halorella – tentative report
• †Halorites
• †Hamulus – tentative report
• †Hannaoceras – tentative report
• Haplophragmoides
• †Hauerites
• †Healdia
• †Hebetoxyites
  • †Hebetoxyites hebes – or unidentified related form
• †Heilungia
  • †Heilungia oloensis – or unidentified comparable form
• †Heptastylis

• 

  Life restoration of the Late Cretaceous toothed bird Hesperornis

  †Hesperornis
• †Heterastridium
  • †Heterastridium conglobatum
• Heteropora
• †Hiatobairdia
  • †Hiatobairdia arcuata
• †Higumastra
  • †Higumastra transversa – type locality for species
• †Hildaites – tentative report
• †Himavatites – tentative report
  • †Himavatites multiauritis – or unidentified comparable form
• †Holcophylloceras
  • †Holcophylloceras costisparsum
• †Hoplotropites
  • †Hoplotropites jokelyi – or unidentified comparable form
• †Hsuum – tentative report
  • †Hsuum inexploratum – type locality for species
• †Hulenites
  • †Hulenites reesidei – or unidentified comparable form
• †Hypophylloceras
  • †Hypophylloceras californicatus – or unidentified comparable form
  • †Hypophylloceras californicum – or unidentified comparable form

I

• †Iniskinites
  • †Iniskinites abruptus – type locality for species
  • †Iniskinites intermedius – type locality for species
  • †Iniskinites magniformus
  • †Iniskinites martini – type locality for species

• 

  Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size

  †Inoceramus
  • †Inoceramus comancheanus
  • †Inoceramus cuvieri – or unidentified comparable form
  • †Inoceramus elegans – or unidentified related form
  • †Inoceramus eximius
  • †Inoceramus hobetsensis – or unidentified related form
  • †Inoceramus mamatensis – or unidentified related form
  • †Inoceramus naumanni – or unidentified comparable form
  • †Inoceramus porrectus – or unidentified comparable form
  • †Inoceramus schmidti
  • †Inoceramus subundatus – or unidentified comparable form
  • †Inoceramus teshioensis – or unidentified related form
  • †Inoceramus yokoyamai – or unidentified comparable form
• †Integricorpus
• †Isastrea – tentative report
• Isocrinus
  • †Isocrinus gravinse
• †Isocyprina – tentative report

• 

  Fossilized shell of the Permian-modern marine bivalve Isognomon

  Isognomon – tentative report

J

• †Joannites
• †Juvavites
  • †Juvavites knowltoni
  • †Juvavites magnus – or unidentified comparable form
  • †Juvavites subinterruptus
• †Juvenites
  • †Juvenites septentrionalis

K

• †Kammerkarites
  • †Kammerkarites frigga – or unidentified comparable form
  • †Kammerkarites megastoma - or unidentified loosely related form
• †Kenella
  • †Kenella filatovii
• †Kennicottia – type locality for genus
  • †Kennicottia bifurcata – type locality for species
  • †Kennicottia rugosa – type locality for species
• †Kepplerites
• †Kompsasteria
  • †Kompsasteria oligocystis – or unidentified comparable form
• †Kosmoceras

  • 

    Fossilized shell of the Middle Jurassic ammonoid cephalopod Kosmoceras spinosum

    †Kosmoceras spinosum – or unidentified comparable form
• †Kuhnastraea
  • †Kuhnastraea decussata
  • †Kuhnastraea incrassata – type locality for species
• †Kukaspis – type locality for genus
  • †Kukaspis usingeri – type locality for species

L

• †Laballa
  • †Laballa suessi
• †Lanceolites
  • †Lanceolites bicarinatus
  • †Lanceolites compactus
• †Latimaeandra – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Latimaeandra alaskana
• †Leconteites
  • †Leconteites deansi
  • †Leconteites deansii
  • †Leconteites modestus
• †Lemuroceras
  • †Lemuroceras dubium – or unidentified comparable form
• †Leptaleoceras – tentative report
• †Liliacidites
  • †Liliacidites variegatus
• †Lilloettia
  • †Lilloettia buckmani
  • †Lilloettia lilloetensis
  • †Lilloettia mertonyarwoodi
  • †Lilloettia milleri – type locality for species
  • †Lilloettia stantoni – type locality for species
• Lima
  • †Lima blackburnei – type locality for species
  • †Lima kimballi – or unidentified related form
  • †Lima martini – type locality for species
  • †Lima spp.
• †Lioceratoides
  • †Lioceratoides involutum – or unidentified comparable form
• †Liospiriferina
  • †Liospiriferina rostrata
• †Lobites
  • †Lobites pacianus – or unidentified comparable form
• †Lobothyris
  • †Lobothyris monstrifer – or unidentified comparable form
  • †Lobothyris mostrifer – or unidentified comparable form
  • †Lobothyris praepunctata
  • †Lobothyris punctata – or unidentified comparable form
• †Loranthacites
  • †Loranthacites pilatus
• †Lucina

• 

  Fossilized shell of the Early Jurassic-Late Cretaceous ammonoid cephalopod Lytoceras

  †Lytoceras
  • †Lytoceras eudesianum – or unidentified related form
  • †Lytoceras fimbriatum – or unidentified comparable form

M

• †Maclurites – tentative report
• †Macrophylloceras
  • †Macrophylloceras grossicostatum
• †Maeandrostylis
  • †Maeandrostylis grandiseptus
  • †Maeandrostylis vancouverensis
• †Mancicorpus
  • †Mancicorpus trapeziforme
• †Maoritrigonia
• †Margarastraea
  • †Margarastraea eucystis
  • †Margarastraea granissima

• 

  Shell in multiple views of a Margarites sea snail

  Margarites
  • †Margarites moffiti – type locality for species
• †Margaritropites
  • †Margaritropites johnsoni
• †Margarosmilia
  • †Margarosmilia chalyana – tentative report
  • †Margarosmilia charlyana
  • †Margarosmilia confluens
  • †Margarosmilia richthofeni – or unidentified comparable form
• †Marginotruncana
  • †Marginotruncana sigali – or unidentified comparable form
• †Marshallites
  • †Marshallites cumshewaensis
• †Meekoceras
  • †Meekoceras gracilitatis
• †Meginoceras
• †Meleagrinella
• †Mesochara
• †Mesopuzosia
  • †Mesopuzosia indopacifica – or unidentified comparable form
• †Metapolygnathus
  • †Metapolygnathus primitius
• †Metasibirites
• †Metussuria
  • †Metussuria waageni
• †Microchara
• †Microdoma – tentative report
• †Microreticulatisporites
  • †Microreticulatisporites uniformis
• Milax
  • †Milax alienus – type locality for species
  • †Milax flexuosus – type locality for species
  • †Milax inflatus – type locality for species
• †Minetrigonia
  • †Minetrigonia cairnesi – or unidentified comparable form
  • †Minetrigonia suttonensis
• †Mirella
  • †Mirella borealis – or unidentified related form

• 

  Fossilized shell of a Modiolus, or horsemussel

  †Modiolus
• †Moffiites
  • †Moffiites robustus
• †Moffites
  • †Moffites robustus
• †Moffitites – type locality for genus
  • †Moffitites crassus
  • †Moffitites robustus – type locality for species
• †Mojsvaroceras – tentative report
• †Mongolocypris
• †Monotis
  • †Monotis alaskana – type locality for species
  • †Monotis anjuensis
  • †Monotis daonellaeformis
  • †Monotis haueri
  • †Monotis jakutica
  • †Monotis obtusicostata
  • †Monotis ochotica
  • †Monotis pachypleura
  • †Monotis pinensis – tentative report
  • †Monotis subcircularis
  • †Monotis typica
• †Montlivaltia
  • †Montlivaltia martini – type locality for species
• †Muelleritortis
  • †Muelleritortis cochleata
• †Mullerites
  • †Mullerites pleuroacanthitoides – or unidentified comparable form
• †Muramotoceras
  • †Muramotoceras yezoense – or unidentified related form
• †Murchisonia – tentative report
• †Myoconcha
  • †Myoconcha nana – or unidentified comparable form

• 

  Fossilized shell of the Jurassic-Cretaceous marine bivalve Myophorella

  †Myophorella
  • †Myophorella alaskaensis – type locality for species
  • †Myophorella argo
  • †Myophorella dawsoni
  • †Myophorella devexa
  • †Myophorella orientalis
  • †Myophorella packardi
  • †Myophorella tipperi
  • †Myophorella tuxedniensis – type locality for species
• †Myophoria
  • †Myophoria beringiana – type locality for species
• †Myphoria – tentative report
• †Mytiloceramus
  • †Mytiloceramus lucifer
• †Mytiloides
  • †Mytiloides stantoni

• 

  Shells washed ashore of Mytilus mussels

  †Mytilus

N

• 

  Life restoration of the Late Cretaceous tyrannosaur Nanuqsaurus

  †Nanuqsaurus – type locality for genus
  • †Nanuqsaurus hoglundi – type locality for species
• Napora
  • †Napora aculeata – type locality for species
  • †Napora bukryi – or unidentified comparable form
  • †Napora milleri – type locality for species
  • †Napora pualensis – type locality for species
• †Nathorstites
  • †Nathorstites alaskanus – type locality for species
• Natica
  • †Natica spp.
• †Neogondelella
  • †Neogondelella jubata
• †Neogondolella
  • †Neogondolella navicula
  • †Neogondolella silberlingi
  • †Neogondolella tozeri
• †Neohimavatites
  • †Neohimavatites canadensis – or unidentified comparable form
• †Neophylloceras
  • †Neophylloceras hetonaiense
  • †Neophylloceras ramosum
  • †Neophylloceras seresitense
• †Neospathodus – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Neospathodus conservativus

• 

  Shell in multiple views of a Nerita polita sea snail

  Nerita – tentative report
• †Neritaria
  • †Neritaria nuetzeli – type locality for species
• Neritopsis
• †Nevadathalamia
  • †Nevadathalamia cylindrica
  • †Nevadathalamia minima – type locality for species
• †Nilsonia
  • †Nilsonia decursiva – or unidentified comparable form
  • †Nilsonia magnifolia
  • †Nilsonia menneri
  • †Nilsonia polymorpha
  • †Nilsonia serotina – or unidentified comparable form
• Nodosaria
• †Novispathodus
  • †Novispathodus waageni

• 

  Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula

  Nucula
  • †Nucula percrassa – or unidentified related form
• Nuculana – tentative report

O

• †Ogmoconcha
  • †Ogmoconcha alaskaense – type locality for species
  • †Ogmoconcha limbata – or unidentified related form
  • †Ogmoconcha marquardti
  • †Ogmoconcha owthropensis
  • †Ogmoconcha tailleuri – type locality for species
  • †Ogmoconcha unicerata – type locality for species
• †Omphaloptycha
• †Onychiopsis
  • †Onychiopsis psilotoides – or unidentified comparable form
• †Ophiceras
  • †Ophiceras commune
  • †Ophiceras greenlandicum – or unidentified comparable form
• †Orbiculiforma
  • †Orbiculiforma iniqua – type locality for species
  • †Orbiculiforma multifora – or unidentified related form
• †Orbiculiformella – tentative report
  • †Orbiculiformella incognita – type locality for species
• Ostrea
• †Otoceras
  • †Otoceras boreale
• †Otoscaphites
  • †Otoscaphites teshioensis
• †Otozamites
  • †Otozamites bornholmiensis – tentative report
  • †Otozamites pterophylloides
• †Owenites
  • †Owenites koeneni – or unidentified comparable form

• 

  Fossilized shell in multiple views of the Middle Jurassic ammonoid cephalopod Oxycerites

  †Oxycerites
  • †Oxycerites chinitnana – type locality for species
• †Oxytoma

P

• †Pachydiscus
  • †Pachydiscus hazzardi – type locality for species
  • †Pachydiscus kamishakensis – type locality for species
  • †Pachydiscus obsoletiformis – type locality for species
  • †Pachydiscus ootacodensis

• 

  Life restoration of two of the Late Cretaceous horned dinosaur Pachyrhinosaurus perotorum

  †Pachyrhinosaurus
  • †Pachyrhinosaurus perotorum – type locality for species
• †Pagiophyllum
  • †Pagiophyllum falcatum
  • †Pagiophyllum triangulare
• †Palaeastraea
  • †Palaeastraea borealis
  • †Palaeastraea descussata
• †Palaeopharus
  • †Palaeopharus buriji – or unidentified comparable form
• †Paleosaturnalis
• †Pamiroseris
  • †Pamiroseris borealis – type locality for species
  • †Pamiroseris meriani
  • †Pamiroseris rectilamellosa – or unidentified comparable form
• Panopea
  • †Panopea elongatissima – or unidentified comparable form
  • †Panopea kissoumi
• †Pantanellium
  • †Pantanellium fosteri – or unidentified related form
• †Paracadoceras
  • †Paracadoceras chisikense – type locality for species
  • †Paracadoceras moffiti – type locality for species
  • †Paracadoceras multiforme
  • †Paracadoceras tonniense – type locality for species
• †Paracuifia
  • †Paracuifia anomala
  • †Paracuifia jennieae – type locality for species
  • †Paracuifia smithi – type locality for species
• †Paracyclas – tentative report
  • †Paracyclas ellipticus – or unidentified comparable form
• †Paradelphinulopsis
  • †Paradelphinulopsis vallieri
• †Parallelodon
  • †Parallelodon cumshewaensis
  • †Parallelodon simillimus
• †Paranannites
  • †Paranannites aspenensis
  • †Paranannites slossi
• †Parareineckeia
  • †Parareineckeia hickersonensis – type locality for species
  • †Parareineckeia shelikofana – type locality for species
• †Parasilesites – type locality for genus
  • †Parasilesites bullatus – type locality for species
  • †Parasilesites irregularis – type locality for species
• †Parastraeomorpha
  • †Parastraeomorpha minuscula
• †Parataxodium
  • †Parataxodium wigginsii – or unidentified comparable form
• †Paratropites
• †Parauvanella
  • †Parauvanella ferdowsensis – or unidentified comparable form
• †Parkinsonia – tentative report
• †Paroecotraustes
• †Paronaella
  • †Paronaella bandyi – or unidentified related form
  • †Paronaella pessagnoi – type locality for species
  • †Paronaella pygmaea – or unidentified related form
  • †Paronaella venadoensis – or unidentified related form
  • †Paronaella venusta – type locality for species
• †Partschiceras
  • †Partschiceras ellipticum – type locality for species
  • †Partschiceras grantzi – type locality for species
  • †Partschiceras japonicum
  • †Partschiceras subobtusiforme
• Parvamussium – report made of unidentified related form or using admittedly obsolete nomenclature
• †Parvicingula
  • †Parvicingula blackhornensis
  • †Parvicingula praeacutum – type locality for species
  • †Parvicingula rothwelli – or unidentified related form
• †Patagiosites
  • †Patagiosites alaskensis – type locality for species
• Patella – tentative report
• †Pecten
  • †Pecten spp.
• †Pelekodites
  • †Pelekodites pelekus – or unidentified comparable form
• †Pentacrinus

• 

  Fossilized shell of the Cretaceous brachiopod Peregrinella

  †Peregrinella
  • †Peregrinella chisania – type locality for species
• †Peribositria – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Peribositria mimer – tentative report
• †Perispyridium
  • †Perispyridium alinchakense
  • †Perispyridium dettermani
  • †Perispyridium nitidum
• †Phacelophyllia – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Phacelophyllia suttonensis
• †Phacelostylophyllum
  • †Phacelostylophyllum zitteli
• †Phloioceras
• †Phoenicopsis
  • †Phoenicopsis angustifolia - or unidentified loosely related form
• Pholadomya

• 

  Life restoration of the Early Jurassic-Late Cretaceous ammonoid cephalopod Phylloceras

  †Phylloceras
  • †Phylloceras bakeri – type locality for species
• †Phyllopachyceras
  • †Phyllopachyceras chitinanum – type locality for species
  • †Phyllopachyceras forbesianum
  • †Phyllopachyceras shastalense – or unidentified comparable form
• †Piarorhynchia – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Piarorhynchia hamiltonensis – type locality for species
• †Pinacoceras
  • †Pinacoceras rex – or unidentified comparable form
• †Pinna
  • †Pinna expansa – or unidentified comparable form
• †Pinnigena
• †Pityolepis – tentative report
• †Pityophyllum
  • †Pityophyllum nordenskioldii - or unidentified loosely related form
  • †Pityophyllum staratschinii - or unidentified loosely related form
• †Pityostrobus
  • †Pityostrobus piceoides – or unidentified comparable form
• †Placites
• †Placunopsis – tentative report
• †Plagiostoma
• †Planolites – tentative report

• 

  Leaves and fruit of a living Platanus, or plane tree

  Platanus
  • †Platanus louravetlanica
• †Platyceras
• †Pleuroacanthites
  • †Pleuroacanthites mulleri - or unidentified loosely related form
• †Pleuromya
  • †Pleuromya carlottensis
• †Pleuronautilus
  • †Pleuronautilus alaskensis – type locality for species
• †Pleurophorus – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Pleurophorus overbecki – type locality for species
• Pleurotomaria
• Plicatula
  • †Plicatula perimbricata – or unidentified comparable form
  • †Plicatula periobricata – or unidentified comparable form
• †Podozamites
  • †Podozamites eichwaldii - or unidentified loosely related form
  • †Podozamites spp.
• †Polycingulatisporites
  • †Polycingulatisporites triangularis
• †Posidonia
• †Poulpus
  • †Poulpus transitus
• †Praeparvicingula
  • †Praeparvicingula communis – type locality for species
  • †Praeparvicingula decora – or unidentified related form
  • †Praeparvicingula inornata – type locality for species
  • †Praeparvicingula prisca – type locality for species
• †Proarcestes
  • †Proarcestes shastensis
• †Procerites
  • †Procerites irregularis – type locality for species
• †Procyclolites
• †Projuvavites
  • †Projuvavites brockensis
• †Promathildia – tentative report
• †Proptychites
  • †Proptychites rosenkrantzei – or unidentified comparable form
• †Protocardia
• †Protocula
  • †Protocula bassetti
• †Protorcula
  • †Protorcula bassetti – type locality for species

• 

  Fossilized shell of the Triassic ammonoid cephalopod Protrachyceras

  †Protrachyceras
• †Pseudammatoceras
  • †Pseudammatoceras benneri – or unidentified related form
• †Pseudaptetoceras
  • †Pseudaptetoceras klimakomphalum
• †Pseudobythocypris
• †Pseudocrucella
  • †Pseudocrucella plana – type locality for species
  • †Pseudocrucella prava – type locality for species
• †Pseudocycas
• †Pseudodictromitria
  • †Pseudodictromitria carpatica
• †Pseudoencurtis
• †Pseudoheliodiscus
  • †Pseudoheliodiscus viejoensis
• †Pseudolioceras
  • †Pseudolioceras compactile – or unidentified comparable form
  • †Pseudolioceras costistriatum – type locality for species
  • †Pseudolioceras fastigatum – type locality for species
  • †Pseudolioceras lythense – or unidentified comparable form
  • †Pseudolioceras whiteavesi

• 

  Fossilized shell of a Pseudomelania sea snail

  †Pseudomelania – tentative report
• †Pseudomonotis – tentative report
• †Pseudophyllites
  • †Pseudophyllites indra
• †Pseudosageceras
• †Pseudoseptifer
• †Pseudospondylospira – type locality for genus
  • †Pseudospondylospira perplexa – type locality for species
• †Pseudostylosphaera
  • †Pseudostylosphaera coccostyle
  • †Pseudostylosphaera helicatum
  • †Pseudostylosphaera japonica
  • †Pseudostylosphaera nazarovi
• †Pseudotoites
  • †Pseudotoites argentinus – or unidentified comparable form
  • †Pseudotoites transatlanticus – or unidentified comparable form
• †Pseudoxybeloceras – tentative report
• †Pteria
• †Pterophyllum
  • †Pterophyllum aequale
  • †Pterophyllum rajmahalense
• †Ptychoceras
  • †Ptychoceras laeve – or unidentified comparable form
• †Ptyctothyris – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Ptyctothyris stephani
• Purpurina
  • †Purpurina gravinaensis – type locality for species

• 

  Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Puzosia

  †Puzosia
  • †Puzosia alaskana – type locality for species
• †Puzosigella
  • †Puzosigella perrinsmithi – or unidentified comparable form
  • †Puzosigella spp.
  • †Puzosigella taffi – or unidentified comparable form

Q

• †Quercoidites
  • †Quercoidites genustriatus

R

• †Recytella
• †Reineckeites
  • †Reineckeites stuebeli – or unidentified comparable form
• †Reineckia
  • †Reineckia stuebeli – or unidentified comparable form
• †Retiophyllia
  • †Retiophyllia caespitosa
  • †Retiophyllia clathrata – type locality for species
  • †Retiophyllia dawsoni
  • †Retiophyllia delicatula
  • †Retiophyllia fenestrata
  • †Retiophyllia frechi – or unidentified comparable form
  • †Retiophyllia norica
  • †Retiophyllia obtusa
  • †Retiophyllia oppeli
  • †Retiophyllia parviseptum
  • †Retiophyllia robusta – or unidentified comparable form
  • †Retiophyllia tenuicosta
• Rhombocythere

• 

  Fossilized shell of the Silurian-Eocene articulate brachiopod Rhynchonella

  †Rhynchonella
  • †Rhynchonella blackwelderi – type locality for species

S

• †Sagenites – tentative report
• †Sagenopteris – tentative report
• †Sarla
  • †Sarla vetusta
• †Saurexallopus

• 

  Life restoration of the Late Cretaceous dromaeosaurid Saurornitholestes preying upon a multituberculate mammal

  †Saurornitholestes
  • †Saurornitholestes langstoni
• †Saxoceras – tentative report
  • †Saxoceras portlocki - or unidentified loosely related form
• †Scaphites
• †Scheffleraephyllum
  • †Scheffleraephyllum venustum
• †Schizodus – tentative report
  • †Schizodus appressus – or unidentified comparable form
• †Sciponoceras
• Scurria – tentative report
• †Seirocrinus
  • †Seirocrinus subangularis
• †Septocardia
  • †Septocardia pascoensis – or unidentified comparable form
  • †Septocardia peruviana – or unidentified comparable form
• Serpula
• †Seymourites
  • †Seymourites abruptus
  • †Seymourites alticostatus – type locality for species
  • †Seymourites gittinsi
  • †Seymourites ingrahami
  • †Seymourites mcevoyi
  • †Seymourites multus
  • †Seymourites plenus
  • †Seymourites tychonis
• †Siemiradzkia – or unidentified comparable form
  • †Siemiradzkia aurigera
• †Sigmopollis
  • †Sigmopollis psilatus
• †Simbirskites
• †Sirenites
  • †Sirenites hayesi – type locality for species

• 

  Fossilized shells of the marine bivalve Solecurtus

  Solecurtus – tentative report
  • †Solecurtus chapmani – type locality for species
• Solemya – tentative report
• †Solenopora
• †Sonninia
  • †Sonninia alaskensis – type locality for species
  • †Sonninia bifurcata – type locality for species
• †Spatulites
  • †Spatulites spatians – or unidentified related form
• †Sphaerocladiscites
  • †Sphaerocladiscites martini – type locality for species
  • †Sphaerocladiscites mendenhalli – type locality for species
• †Sphaeroidochyria – tentative report

• 

  Fossilized leaf of the Late Cretaceous ginkgo relative Sphenobaiera

  †Sphenobaiera
  • †Sphenobaiera biloba - or unidentified loosely related form
  • †Sphenobaiera czekanowskiana - or unidentified loosely related form
  • †Sphenobaiera longifolia - or unidentified loosely related form
• †Spinidelphinulopsis
  • †Spinidelphinulopsis whaleni
• †Spiriferina
  • †Spiriferina borealis – tentative report
  • †Spiriferina yukonensis – type locality for species
• †Spirocyclina – tentative report
• †Spirogmoceras
  • †Spirogmoceras shastense – or unidentified comparable form
• †Spondylospira
  • †Spondylospira lewesensis

• 

  Shell of a Spondylus, or spiny oyster

  Spondylus – tentative report
• †Spongiomorpha
  • †Spongiomorpha acyclica
  • †Spongiomorpha gibbosa
  • †Spongiomorpha ramosa
• †Steinmannites
• †Stellispongia
  • †Stellispongia subsphaerica – or unidentified comparable form
• †Stenocadoceras
  • †Stenocadoceras bowserense – type locality for species
  • †Stenocadoceras iniskinense – type locality for species
  • †Stenocadoceras multicostatum – type locality for species
  • †Stenocadoceras pomeroyense – type locality for species
  • †Stenocadoceras stenoloboide
  • †Stenocadoceras striatum – type locality for species
• †Stenorachis
  • †Stenorachis striolatus
• †Stereisporites
  • †Stereisporites regium
• †Stromatomorpha
  • †Stromatomorpha californica
• †Stylophyllum
  • †Stylophyllum pygmaeum
• †Sunrisites – tentative report

T

• †Taeniopteris – tentative report
• †Tancredia
  • †Tancredia kurupana – type locality for species
  • †Tancredia stelcki
• Terebratula

• 

  Fossils of the ichnogenus Teredolites, produced by bivalves boring into wood.

  Teredolites
• †Tetragonites
  • †Tetragonites glabrus
  • †Tetragonites kiliani
  • †Tetragonites timotheanus – or unidentified related form
• †Thallites
  • †Thallites arctica - or unidentified loosely related form
• †Thamnasteria
  • †Thamnasteria borealis
  • †Thamnasteria smithi
• †Thecosmilia – report made of unidentified related form or using admittedly obsolete nomenclature
• Thracia
  • †Thracia semiplanata
  • †Thracia stelcki
• †Tosapecten – tentative report
• †Trachyceras – tentative report
• †Triassocampe
  • †Triassocampe deweveri
• †Triassocypris
• †Trichites – report made of unidentified related form or using admittedly obsolete nomenclature
• †Tricolpopollenites
  • †Tricolpopollenites parvulus
• †Trigonarca – or unidentified comparable form
  • †Trigonarca tumida
• †Trigonia
• †Trigonodus – tentative report
• †Tritrabs
  • †Tritrabs worzeli – or unidentified related form
• Trochocyathus – tentative report
• Trochus

• 

  Fossilized skeleton found in Alaska of the Late Cretaceous troodontid Troodon

  †Troodon
  • †Troodon formosus
• †Tropites
  • †Tropites stantoni – type locality for species
• †Trudopollis
  • †Trudopollis meekeri
• †Trypanostylus – tentative report
• †Turanta – tentative report
  • †Turanta unica – type locality for species
• Turbo – tentative report
• Turritella – tentative report
• †Tutcheria
  • †Tutcheria densestriata

U

• 

  Fossilized skeleton found in Alaska of the Late Cretaceous duck-billed dinosaur Ugrunaaluk

  †Ugrunaaluk – type locality for genus
  • †Ugrunaaluk kuukpikensis – type locality for species
• †Unnuakomys – type locality for genus
  • †Unnuakomys hutchisoni – type locality for species

V

• Vaginulina
• †Valdedorsella – tentative report
  • †Valdedorsella whiteavesi – type locality for species
• †Variamusiua – tentative report
• †Vaugonia
  • †Vaugonia doroschini
  • †Vaugonia imlayi – type locality for species
• †Vermiceras
  • †Vermiceras rursicostatum – or unidentified comparable form
• †Vinassaspongus
  • †Vinassaspongus erendili
  • †Vinassaspongus subsphaericus

W

• †Weyla
  • †Weyla unca
• †Witchellia
  • †Witchellia sutneroides – type locality for species
• †Wollemanniceras
  • †Wollemanniceras alaskanum
  • †Wollemanniceras fohlinense
• †Worthenia
  • †Worthenia klamathensis
  • †Worthenia spp.
• †Wyomingites
  • †Wyomingites aplanatus

X

• †Xenoceltites
  • †Xenoceltites cordilleranus
• †Xenocephalites
  • †Xenocephalites hartsocki – type locality for species
  • †Xenocephalites vicarius – type locality for species
• †Xenoxylon
  • †Xenoxylon latiporosum

Y

• †Yezoites
  • †Yezoites puerculus
  • †Yezoites teshionesis

Z

• †Zetoceras
  • †Zetoceras zetes – or unidentified comparable form
• †Zugmayerella
  • †Zugmayerella americana
  • †Zugmayerella koessensis
  • †Zugmayerella ormana
  • †Zugmayerella uncinata
• †Zygopleura

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.