# List of the prehistoric life of Alaska

This list of the prehistoric life of Alaska contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Alaska.

## Precambrian

The Paleobiology Database records no known occurrences of Precambrian fossils in Alaska.

## Paleozoic
### Selected Paleozoic taxa of Alaska

* †Abadehella
* †Acanthophyllum
* Fossil of the Silurian-Middle Devonian trilobite Acanthopyge †Acanthopyge
* †Acmarhachis
* †Agoniatites – tentative report
* †Amplexus
* †Ancyrognathus
* †Anomphalus – tentative report
* †Athyris
** †Athyris lamellosa – or unidentified related form
* †Atrypa
** †Atrypa reticularis
* †Aulopora
* 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
* †Bailiaspis
* †Bathyuriscus
* †Belemnites – tentative report
* †Bellerophon
** †Bellerophon chapmani
** †Bellerophon livengoodensis
** †Bellerophon spergensis – or unidentified related form
* †Bembexia – tentative report
* †Bimuria
* †Callograptus
* †Calymene
** Fossil of the Silurian trilobite Calymene blumenbachii †Calymene blumenbachii
** †Calymene iladon
* †Camarotoechia
** †Camarotoechia billingsi – or unidentified comparable form
** †Camarotoechia duplicata – tentative report
** †Camarotoechia winiskensis – or unidentified comparable form
* Capulus
* †Catenipora
** †Catenipora jacovikii – or unidentified comparable form
** †Catenipora robustus – or unidentified comparable form
** †Catenipora rubra – or unidentified comparable form
* †Cedaria
* †Cheirurus
* †Chirognathus – tentative report
* †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
* †Christiania
* †Cladochonus
* †Cladospongia – type locality for genus
* †Cleiothyridina
** †Cleiothyridina sublamellosa – or unidentified related form
* 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
* †Coenites
* Fossilized shell of the Late Devonian-Permian brachiopod Composita †Composita
** †Composita ambigua – or unidentified comparable form
** †Composita bellula – or unidentified related form
* †Conchidium
* †Conocardium
* †Cordylodus – tentative report
* †Crania
* †Craticula – report made of unidentified related form or using admittedly obsolete nomenclature
* †Cyclonema
* †Cyclopteris – tentative report
* †Cymbidium
* †Cyphaspis
* †Cypricardinia
* Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras †Cyrtoceras
* †Cyrtospirifer
** †Cyrtospirifer buddingtoni – type locality for species
** †Cyrtospirifer paridaensis
* †Cystodictya
** †Cystodictya lineata – or unidentified related form
** †Cystodictya pustulosa – or unidentified related form
* †Dalmanites
* †Dendrograptus
* †Dentalium
** †Dentalium hecetaensis
* †Dicoelosia
* †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
* †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
* †Drepanophycus
* †Edmondia
* † Ella – tentative report
* †Ellesmeroceras
* †Elrathia
* †Emmonsia
* †Eospirifer
* †Epiphyton
* 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
* †Favosites
** †Favosites emmonsi – or unidentified comparable form
** †Favosites hemispericus
** †Favosites hemisphericus
** †Favosites limitaris
** †Favosites radiciformis
* †Fenestella
* †Fletcheria – tentative report
* †Fusulina
* †Gastrioceras
* Fossil of the Early-Late Ordovician trilobite Geragnostus †Geragnostus
* †Gervillia
* †Girvanella
* †Gomphoceras
* †Goniatites
* †Grewingkia
* †Gypospirifer
** †Gypospirifer condor
* †Halysites
* †Harpides
* †Harpidium
* †Hedstroemia – tentative report
* †Heliophyllum
* †Hemirhodon
* †Hercynella
* Fossil of the Devonian colonial rugose coral Hexagonaria, also known as a Petoskey stone †Hexagonaria
* †Hindeodus
* †Holopea
* †Homagnostus
* †Howittia
* †Icriodus
** †Icriodus angustoides
** †Icriodus taimyricus
* †Idiognathodus
* †Isograptus
** †Isograptus forcipiformis
** †Isograptus manubriatus – or unidentified comparable form
* Fossilized shells of the Middle Ordovician-Permian nautiloid cephalopod Kionoceras †Kionoceras
* †Kootenia
** †Kootenia anabarensis – or unidentified comparable form
** †Kootenia granulospinosa – type locality for species
** †Kootenia serrata – or unidentified comparable form
* †Krausella
* †Lejopyge
** †Lejopyge laevigata
* †Lichas
* Lima
* †Lingula
* †Lithostrotion
** †Lithostrotion mclareni
** †Lithostrotion portlocki – or unidentified related form
** †Lithostrotion sinuosum
** †Lithostrotion warreni
* †Lucina
* †Martinia
* 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
* Mesophyllum
* †Michelinoceras – tentative report
* †Microplasma
* †Modiolus – 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
* †Morania
* Fossilized shell of the Devonian brachiopod Mucrospirifer †Mucrospirifer
** †Mucrospirifer refugiensis – type locality for species
* †Murchisonia
* †Naticopsis
** †Naticopsis bowsheri
** †Naticopsis carleyana – or unidentified related form
** †Naticopsis suturicompta
* †Neogondolella
* †Neospirifer
** †Neospirifer cameratus
** †Neospirifer fasciger – or unidentified related form
** †Neospirifer striatus – tentative report
* †Nowakia
* Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula Nucula
** †Nucula shumardiana – or unidentified related form
* †Oncagnostus
** †Oncagnostus tumidosus
* †Oonoceras
* †Orthoceras
** †Orthoceras anguliferas – or unidentified comparable form
* †Oulodus
* †Ozarkodina
** †Ozarkodina confluens
** †Ozarkodina eberleini – type locality for species
** †Ozarkodina paucidentata – or unidentified comparable form
* †Pagetia
* †Panenka
* Fossil of the Cambrian trilobite Paradoxides †Paradoxides
* †Parafusulina – tentative report
* †Pecopteris
** †Pecopteris arborescens
** †Pecopteris hemitelioides
** †Pecopteris unita
* †Pentamerus
* †Peronopsis
* †Phalagnostus
* †Phillipsia
* †Phyllograptus
* †Pinna
* †Platyceras
* †Platycrinites
* Pleurotomaria
* Various conodont elements of Polygnathus †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
* †Prodentalium
* †Proetus
* †Prohedinia
* †Pseudoamplexus
* †Pseudobornia
** †Pseudobornia ursina
* †Pseudomelania
* Fossil of the primitive Devonian vascular plant Psilophyton †Psilophyton
* †Pteria – report made of unidentified related form or using admittedly obsolete nomenclature
* †Ptychagnostus
* †Pugnax
* †Receptaculites
* †Rhynchonella
* †Rothpletzella
* † Sarcinula
* †Schwagerina
* †Sinutropis
* †Skenidioides
* †Solenopora
** †Solenopora compacta
** †Solenopora filiformis
* † Solenopsis – tentative report
* †Sowerbyella
* †Spathognathodus
* †Sphaerina
* †Sphaerocodium
* Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer †Spirifer
** †Spirifer schellwieni – or unidentified related form
* †Spiriferina
** †Spiriferina panderi – or unidentified related form
* Spirorbis
* †Spyroceras
* †Stringocephalus
* †Strophomena
* †Syringopora
* †Taeniocrada
* †Teganium
* Assemblage of fossilized shells of the Early Ordovician-Late Devonian probable mollusc Tentaculites †Tentaculites
* †Tetradium
* †Tetragraptus
* †Triarthrus
* †Uraloceras
** †Uraloceras burtiense
** †Uraloceras fedorowi
** †Uraloceras involutum
** †Uraloceras nevadense
* †Westergaardodina
* Restoration of the Permian shark Wodnika †Wodnika
* †Zacanthoides

## Mesozoic
### Selected Mesozoic taxa 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.
* †Actinoceramus
* 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
* †Amaltheus
* †Amblydactylus
* †Amoeboceras
* Amusium
* †Anagaudryceras
** †Anagaudryceras auranium
** †Anagaudryceras aurarium
** †Anagaudryceras inflatus
** †Anagaudryceras sacya – type locality for species
* †Anapachydiscus
** †Anapachydiscus nelchinensis – type locality for species
* †Anatomites
* †Anomia
* †Arcestes
* †Archaeocidaris – tentative report
* †Arcthoplites
* 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
* †Arieticeras
* †Arnioceras
* †Arpadites – tentative report
* †Aspenites
* Astarte
* †Asthenoceras
* †Aviculopecten
* †Baculites
* †Belemnites
* †Bradfordia
* 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
* †Calycoceras
* Capulus – tentative report
* Cardinia
* Cardita – tentative report
* †Cenoceras
* †Ceratites
* Cerithium – tentative report
* Chlamys
* †Chondrites – tentative report
* †Chonetes – tentative report
* Cidaris – tentative report
* †Cimolodon
* Fossilized foliage of the Permian-Late Cretaceous fern Cladophlebis Cladophlebis
** †Cladophlebis hirta – tentative report
* †Claraia
** †Claraia stachei
* †Cleoniceras
* †Collonia
* †Corum
* †Cosmonautilus – tentative report
* †Ctenophyllum
* †Cylindroteuthis
* Restoration of the Early Jurassic ammonoid cephalopod Dactylioceras †Dactylioceras
** †Dactylioceras commune – or unidentified comparable form
* †Daonella
* †Daxatina
* †Dentalium
* †Desmoceras
* †Desmophyllites
* †Didymoceras
** †Didymoceras hornbyense – or unidentified related form
* †Docidoceras
** †Docidoceras camachoi – type locality for species
** †Docidoceras longalvum – or unidentified related form
** †Docidoceras paucinodosum – type locality for species
* †Douvilleiceras
* †Dromaeosaurus
** †Dromaeosaurus albertensis
* †Edmontonia
* Restoration of the Late Cretaceous duck-billed dinosaur Edmontosaurus annectens †Edmontosaurus – or unidentified related form
** †Edmontosaurus saskatchewanensis
* †Ellisonia
* †Epigondolella
* †Euaptetoceras
* †Eubostrychoceras
* †Eudmetoceras
* †Euomphaloceras
* †Euomphalus
* †Fresvillia
* †Gaudryceras
* †Germanonautilus
* †Gervillia
* Ginkgo
** Restored foliage of the Late Cretaceous-Miocene ginkgo tree Ginkgo adiantoides †Ginkgo adiantoides - or unidentified loosely related form
* Gleichenia
* †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
* Guttulina
* †Gymnocodium
* †Hamulus – tentative report
* †Hebetoxyites
* Life restoration of the Late Cretaceous toothed bird Hesperornis †Hesperornis
* †Heterastridium
* †Hildaites – tentative report
* †Hypophylloceras
* †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
* †Isastrea – tentative report
* Isognomon – tentative report
* †Joannites
* †Kepplerites
* †Kosmoceras
** †Kosmoceras spinosum – or unidentified comparable form
* Lima
* †Lobites
* †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
* Margarites
* †Meekoceras
** †Meekoceras gracilitatis
* †Metapolygnathus
* Milax – tentative report
* Milax
* †Modiolus
* †Muramotoceras
* †Murchisonia – tentative report
* †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
* †Mytilus
* Life restoration of the Late Cretaceous tyrannosaur Nanuqsaurus †Nanuqsaurus – type locality for genus
** †Nanuqsaurus hoglundi – type locality for species
* Natica
* †Neogondolella
* †Neophylloceras
** †Neophylloceras hetonaiense
** †Neophylloceras ramosum
** †Neophylloceras seresitense
* †Neospathodus – report made of unidentified related form or using admittedly obsolete nomenclature
* Nerita – tentative report
* Neritopsis
* Exterior of the shell of a modern specimen of the Early Ordovician-modern marine bivalve Nucula Nucula
** †Nucula percrassa – or unidentified related form
* †Ophiceras
* Ostrea
* †Otoscaphites
* †Owenites
** †Owenites koeneni – or unidentified comparable form
* †Oxycerites
* †Oxytoma
* †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
* Panopea
* †Parkinsonia – tentative report
* Patella – tentative report
* †Pecten
* †Peregrinella
* Pholadomya
* †Phylloceras
* †Phyllopachyceras
** †Phyllopachyceras chitinanum – type locality for species
** †Phyllopachyceras forbesianum
** †Phyllopachyceras shastalense – or unidentified comparable form
* †Pinna
* † Plagiostoma
* †Planolites – tentative report
* Leaves and fruit of a living Platanus, or plane tree Platanus
* †Platyceras
* †Pleuroacanthites
* †Pleuronautilus
* Pleurotomaria
* Plicatula
* †Posidonia
* †Procerites
* †Protocardia
* †Protrachyceras
* †Pseudomelania – tentative report
* †Pseudotoites
* †Pteria
* †Pterophyllum
* †Puzosia
** †Puzosia alaskana – type locality for species
* †Reineckeites
* †Rhynchonella
* †Sagenopteris – tentative report
* †Saurexallopus
* Life restoration of the Late Cretaceous dromaeosaurid Saurornitholestes preying upon a multituberculate mammal †Saurornitholestes
** †Saurornitholestes langstoni
* †Saxoceras – tentative report
* †Scaphites
* Scurria – tentative report
* Serpula
* †Sirenites
* Solecurtus – tentative report
* Solemya – tentative report
* †Solenopora
* †Sphenobaiera
** †Sphenobaiera biloba - or unidentified loosely related form
** †Sphenobaiera czekanowskiana - or unidentified loosely related form
** †Sphenobaiera longifolia - or unidentified loosely related form
* †Spiriferina
** †Spiriferina borealis – tentative report
** †Spiriferina yukonensis – type locality for species
* †Spirocyclina – tentative report
* Shell of a Spondylus, or spiny oyster Spondylus – tentative report
* Terebratula
* Teredolites
* †Thamnasteria
* Thracia
* †Trichites – report made of unidentified related form or using admittedly obsolete nomenclature
* †Trigonia
* Trochus
* †Troodon
** †Troodon formosus
* Turbo – tentative report
* Turritella – tentative report
* †Tutcheria
* Fossilized skeleton found in Alaska of the Late Cretaceous duck-billed dinosaur Ugrunaaluk †Ugrunaaluk – type locality for genus
** †Ugrunaaluk kuukpikensis – type locality for species
* †Vermiceras
* †Worthenia
* †Wyomingites
* †Xenoceltites
** †Xenoceltites cordilleranus
* †Xenocephalites
** †Xenocephalites hartsocki – type locality for species
** †Xenocephalites vicarius – type locality for species
* †Yezoites
* †Zetoceras

## Cenozoic
### Selected Cenozoic taxa of Alaska

This list of the Cenozoic 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 66 million and 10,000 years of age.
* Acanthocardia
* Acirsa
* Acmaea
* Agonum
* †Ainus
* A living Alces, or moose Alces
* Alnus
* Alopex
** †Alopex lagopus
* Alvania
* Amara
* Amauropsis
* Ancistrolepis
* Angulus
* †Anomalosipho – tentative report
* Anomia – tentative report
* Aphaenogaster
* Arca
* Arctica
* †Arctodus
** †Arctodus simus
* Argobuccinum
* Life restoration of the Oligocene river dolphin Arktocara †Arktocara – type locality for genus
** †Arktocara yakataga – type locality for species
* Asaphidion
* Asinus
* Astarte
** †Astarte borealis
* Astrangia
* †Aturia
* Balanus
** †Balanus balanoides
** †Balanus balanus
** †Balanus crenatus
** †Balanus nubilus – or unidentified comparable form
* Bembidion
* Beringius
** †Beringius crebricostatus
* Betula
* Bibio
* Bison
** Mummified specimen found in Alaska of the Pleistocene-Holocene Bison priscus, or steppe bison. This specimen, known as "Blue Babe" after the blue ox of Paul Bunyan folklore, derives its unusual coloration from a chemical reaction between the phosphorus in its skin and iron in the surrounding soil to produce a coating of vivianite. †Bison priscus
* †Bootherium
** †Bootherium bombifrons
* Boreotrophon
** †Boreotrophon rotundatus – or unidentified comparable form
* Brachidontes
* †Branchioplax
** †Branchioplax washingtoniana
* Buccella
* Buccinum
** †Buccinum angulosum
** †Buccinum glaciale
* Bulbus
** †Bulbus fragilis
* Cadulus
* Calliostoma
* Callorhinus
** A living Callorhinus ursinus, or northern fur seal †Callorhinus ursinus
* Calyptraea
* Camponotus
* Cancellaria
* Canis
** †Canis lupus
* Carabus
** †Carabus nemoralis – or unidentified comparable form
** †Carabus truncaticollis – or unidentified comparable form
* †Carex
* Caryophyllia
* Cassidulina
* Castalia
* Castanea
* Cepheus
* Fossilized skeleton of the Pliocene-Pleistocene cervid Cervalces, or the stag moose †Cervalces
* Cervus
** †Cervus elaphus
* Ceutorhynchus – tentative report
* Chama
* Chione
* Chlamys
** †Chlamys islandica
** †Chlamys rubida
* †Chrysodomus – tentative report
* Chrysolina
* Cibicides
* Cingula
* Shell of a Clinocardium cockle Clinocardium
** †Clinocardium nuttallii
* Colus
* Corbicula
* Corbula
* †Cornwallius
* †Corylus
* Crenella
* Crepidula
* Cryptonatica
** †Cryptonatica affinis
* Cyclocardia
* Cylichna
* Cyperus
* Delphinapterus – tentative report
* Dentalium
* Fossilized cranium of the Miocene seal Desmatophoca †Desmatophoca – tentative report
* Diacheila
* Dicrostonyx
* Dioon
* Dyschirius
* Echinarachnius
* Echinophoria
* Elphidium
* Enhydra
* Enicmus
* †Epipremnum
* Shell of an Epitonium wentletrap sea snail Epitonium
* Equus
** †Equus alaskae
* Erignathus
** †Erignathus barbatus
* Erigone
* Eschrichtius
* Eumetopias
* †Eumorphocorystes
* Euspira
** †Euspira pallida
* Evalea
* †Exilia – tentative report
* Fossilized foliage of the Cretaceous-Oligocene flowering plant Flabellaria †Flabellaria
* Fulgoraria
* Gari
* Georissus
* Globigerina
** †Globigerina bulloides – or unidentified related form
* Glycymeris
* Helophorus
* Hiatella
** †Hiatella arctica
* Hinnites – tentative report
* Histriophoca
** †Histriophoca fasciata
* Homalopoma – tentative report
* †Hydrodamalis
** Restorative model of the Pleistocene-Holocene manatee relative Hydrodamalis gigas, or Steller's sea cow †Hydrodamalis gigas
* Isurus
* †Kolponomos – or unidentified comparable form
* Lasiopodomys
* Lathrobium
* Laurus
* Leistus
* Lemmus
** †Lemmus sibiricus
* Leptothorax
* Leukoma
* Limatula
* Liocyma
** †Liocyma fluctuosa
* Liomesus
* Shells in differing orientation of a Littorina sea snail, or periwinkle Littorina
* †Lora
* Lunatia
* Lyonsia
* Macoma
** †Macoma balthica – or unidentified related form
* Macrocallista – tentative report
* Magnolia
* †Mammut
* †Mammuthus
** Restoration of a herd of Mammuthus primigenius, or wooly mammoths †Mammuthus primigenius
* Margarites
* Marmota
* Martesia – tentative report
* Mathilda
* Messor
* †Metacarcinus
* Micropeplus
* Microtus
* Modiolus
* Musculus
** †Musculus niger
* †Mya
** †Mya arenaria – or unidentified comparable form
** †Mya truncata
* Fruit of a living Myrica, or firetree Myrica
* Mytilus
** †Mytilus edulis
* Natica
* Nebria
* Neoconorbina
* Neptunea
** †Neptunea heros
** †Neptunea lyrata
** †Neptunea ventricosa
* Neverita
* Notiophilus
* Nucula
* Ochotona
** †Ochotona whartoni
* Odobenus
** A living Odobenus rosmarus, or walrus †Odobenus rosmarus
* Oenopota
** †Oenopota candida
* †Osmunda
* Ostrea
* Ovibos
** †Ovibos moschatus
* Ovis
** †Ovis dalli – tentative report
* †Oxytoma
* Pagophilus
* Palliolum
* Pandora
* Papyridea
* Patrobus
* †Perse
* Phenacomys
* Phoca
** †Phoca hispida
** A living Phoca vitulina, or harbor seal †Phoca vitulina
* Picea
** †Picea glauca
** †Picea mariana
** †Picea sitchensis – or unidentified comparable form
* Pinus
** †Pinus monticola
* Pitar
* †Planera
* Plicifusus
** †Pododesmus macrochisma
* Polinices
* Montage of photographs in spring (top left), summer (top right), autumn (bottom left), and winter (bottom right) of Populus, or poplar tree Populus
* Portlandia
* †Portunites
* †Predicrostonyx
** †Predicrostonyx hopkinsi
* †Protocardia – tentative report
* †Protochelydra
** †Protochelydra zangerli – or unidentified comparable form
* Protothaca
* Pteris
* Pterostichus
* Puncturella
** †Puncturella longifissa
* Purpura
* Pusa – or unidentified related form
** †Pusa hispida
* Pyrgo
* Pyrulofusus
* Quercus
* Quinqueloculina
* Rangifer
** A living Rangifer tarandus, or reindeer †Rangifer tarandus
* Rhabdus
* Rosalina
* †Rotalia
* Saiga
* Saxidomus
* Scaphander
** †Scaphander lignarius – or unidentified comparable form
* †Scutella
* Sequoia
* Serripes
** †Serripes groenlandicus
* Siliqua
* Shell of the whelk sea snail Siphonalia Siphonalia
* Sorex
* Spermophilus
** †Spermophilus undulatus
* Spirorbis
* Spirotropis
* Spisula
* Stenus
* Strongylocentrotus
** †Strongylocentrotus droebachiensis
* †Symphoricarpos
* Tachyrhynchus
** †Tachyrhynchus erosus
* Taxodium
** Living Taxodium distichum, or bald cypresses †Taxodium distichum
* Tellina
* Terebratula
* Thracia
* Thyasira
* Tonicella
* Trichotropis
** †Trichotropis bicarinata
* †Tsuga
** †Tsuga heterophylla
* Turritella
* Ulmus
* Ursus
* †Vaccinium
* Venericardia
* Vitis
* Volutopsius
* Vulpes
** A living Vulpes vulpes, or red fox †Vulpes vulpes
* Xysticus
* Yoldia