# List of the Cenozoic life of Oregon

This list of the Cenozoic life of Oregon contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Oregon and are between 66 million and 10,000 years of age.

## A

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Abies
** †Abies chaneyi
** †Abies sonomensis
* Shell of an Acamptogenotia sea snail †Acamptogenotia
** †Acamptogenotia nodulosa
** †Acamptogenotia tessellata
* Acanthocardia
** †Acanthocardia brewerii
* Acer
** †Acer ashwillii
** †Acer cranei
** †Acer glabroides
** †Acer kluckingii
** †Acer manchesteri
** †Acer oligomedianum
** †Acer osmonti
** †Acer osmontii
* †Acericecis
** †Acericecis chaneyi – type locality for species
* †Achaenodon
** †Achaenodon fremdi – type locality for species
* †Achlyoscapter
** †Achlyoscapter longirostris
* Acila
** †Acila conradi
** †Acila decisa
** †Acila gettysburgensis
** †Acila nehalemensis
** †Acila shumardi
** †Acila trilineata
* Acmaea
** †Acmaea vokesi
* Mounted fossilized skeleton of the Miocene horse Acritohippus †Acritohippus
** †Acritohippus isonesus
* Acteon
** †Acteon chehalisensis
** †Acteon parvum
* †Actinidia
** †Actinidia oregonensis
* †Acutostrea
** †Acutostrea idriaensis
* †Adeloblarina
** †Adeloblarina berklandi
* Admete
** †Admete umbilicata
* Aechmophorus
** †Aechmophorus occidentalis
* †Aesculus
* Life restoration of the Oligocene baleen whale Aetiocetus †Aetiocetus – type locality for genus
** †Aetiocetus cotylalveus – type locality for species
** †Aetiocetus weltoni – type locality for species
* Aforia
** †Aforia campbelli
** †Aforia clallamensis – or unidentified comparable form
* †Agasoma
** †Agasoma gravidum
* Agelaius – tentative report
* Life restoration of the Eocene-Oligocene even-toed ungulate Agriochoerus †Agriochoerus
** †Agriochoerus guyotianus
* Aix
** †Aix sponsa
* Alangium
** †Alangium eydei
** †Alangium rotundicarpum
** †Alangium thomae
* †Allocyon
** †Allocyon loganensis
* †Allomys
** †Allomys simplicidens
* †Alluvisorex
** †Alluvisorex arcadentes
* Alnus
** †Alnus carpinoides
** †Alnus heterodonta
** †Alnus newberryi
* †Alwoodia
** †Alwoodia magna
* Amaea
** †Amaea dickersoni – or unidentified related form
* Life restoration of the Miocene elephant relative Amebelodon. Margret Flinsch (1932). †Amebelodon
* Amelanchier
** †Amelanchier covea
** †Amelanchier grayi
* †Ameranella
** †Ameranella terrysmithae – type locality for species
* Ammospermophilus
** †Ammospermophilus junturensis
* Ampelocissus
** †Ampelocissus auriforma
** †Ampelocissus rooseae
** †Ampelocissus scottii
* Life restoration of the Miocene-Pliocene beardog Amphicyon †Amphicyon
** †Amphicyon frendens
** †Amphicyon galushai – or unidentified comparable form
* Amphissa
** †Amphissa corrugata
* †Ampullina
** †Ampullina oregonensis
* †Anabernicula
* Anadara
** †Anadara devincta
* †Anamirta
** †Anamirta leiocarpa
* Anas
** †Anas acuta
** †Anas americana
** †Anas boschas
** †Anas carolinensis
** A living Spatula clypeata, or northern shoveler †Anas clypeata
** †Anas cyanoptera
** †Anas discors
** †Anas platyrhynchos
* Ancilla
** †Ancilla vernisa – type locality for species
* †Anechinocardium
** †Anechinocardium lorenzanum
** †Anechinocardium weaveri
* †Ankistrosperma
** †Ankistrosperma spitzerae
* Anona
** †Anona preretriculata
* †Anonaspermum
** †Anonaspermum bonesii
** †Anonaspermum pulchrum
** †Anonaspermum rotundum
* †Anonymocarpa
** †Anonymocarpa ovoidea
* †Anorthoscutum
** †Anorthoscutum oregonensis
* Anser
** †Anser albifrons
** †Anser condoni – type locality for species
* †Antecalomys
** †Antecalomys valensis
* Antillophos
** †Antillophos dumbleana
* Antilocapra
** †Antilocapra americana – or unidentified comparable form
* †Aperiploma
** †Aperiploma bainbridgensis
* Aphananthe
** †Aphananthe maii
* †Aphelops
** †Aphelops megalodus
* Aquila
** †Aquila chrysaetos
** †Aquila pliogryps – type locality for species
** †Aquila sodalis – type locality for species
* Arbacia
** †Arbacia abiquaensis – type locality for species
* †Archaeocyon
** †Archaeocyon pavidus
* †Archaeohippus
** †Archaeohippus ultimus
* †Archaeolagus
** †Archaeolagus macrocephalus – or unidentified comparable form
* †Archaeotherium
* Architectonica
** †Architectonica blanda
* Archoplites
** †Archoplites langrellorum – type locality for species
* Restoration of an Arctodus, or short-faced bear, with a human to scale †Arctodus
* †Arctomyoides
** †Arctomyoides oregonensis
* Ardea
** †Ardea herodias
** †Ardea paloccidentalis – type locality for species
* Argobuccinum
** †Argobuccinum cammani
** †Argobuccinum coosense
** †Argobuccinum jeffersonense
** †Argobuccinum oregonense
* †Ascosphaera
** †Ascosphaera eocenis
* †Asterocarpinus
** †Asterocarpinus chaneyi
** †Asterocarpinus perplexans
* Astraea
** †Astraea inequalis
* Astreopora
** †Astreopora occidentalis – type locality for species
* Astropecten
* †Atriaecarpum
** †Atriaecarpum clarnense
* Fossilized shell of the Paleocene-Miocene nautiloid cephalopod Aturia †Aturia
** †Aturia angustata
** †Aturia grandior – or unidentified comparable form
* †Aucuba
** †Aucuba smileyi
* †Axinosperma
** †Axinosperma agnostum
* Aythya
** †Aythya marila

## B

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Balaena
* Balaenoptera
** Illustration of a living Balaenoptera acutorostrata, or common minke whale †Balaenoptera acutorostrata – or unidentified comparable form
* Balanophyllia
** †Balanophyllia elegans
* Balanus
* Balcis
* †Barbouromeryx
* Bartramia
** †Bartramia umatilla – type locality for species
* †Basirepomys
** †Basirepomys pliocenicus – or unidentified comparable form
** †Basirepomys romensis – type locality for species
* Shell of a Bathybembix sea snail Bathybembix
** †Bathybembix columbiana
** †Bathybembix nitor – type locality for species
* Bathytoma
** †Bathytoma gabbiana
* †Beckerosperma
** †Beckerosperma ovalicarpa
* Bela
** †Bela tabulata
* Betula
** †Betula angustifolia
* Bittium
** †Bittium eschrichti
* †Bonellitia
** †Bonellitia paucivaricata
** †Bonellitia smithwickensis – type locality for species
** †Bonellitia tumida – type locality for species
* †Bonesia
** †Bonesia spatulata
* Boreotrophon
** †Boreotrophon gracilis
** †Boreotrophon stuarti
* Restoration of two of the Miocene-Pliocene bone-crushing dog genus Borophagus preying on a camel. Jay Matternes (1964). †Borophagus
** †Borophagus pugnator
** †Borophagus secundus – or unidentified comparable form
* Botaurus
** †Botaurus lentiginosus
* †Bouromeryx
** †Bouromeryx americanus – or unidentified comparable form
** †Bouromeryx submilleri
* Brachidontes
** †Brachidontes cowlitzensis
* Branta
** †Branta bernicla
** †Branta canadensis
** †Branta hypsibata – tentative report
** †Branta hypsibatus
** †Branta propinqua – type locality for species
* †Bruclarkia
** †Bruclarkia columbiana
** †Bruclarkia columbianum
** †Bruclarkia oregonensis
** †Bruclarkia vokesi
* Bubo
** A living Bubo virginianus, or great horned owl †Bubo virginianus
* Buccinum
** †Buccinum strigillatum
* Bullia
** †Bullia bogachielia
* †Bumelia – tentative report
** †Bumelia? subangularis
* †Bursericarpum
** †Bursericarpum oregonense

## C

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Cadulus
* Calliostoma
** †Calliostoma cammani
** †Calliostoma costatum
* Callista
** †Callista conradiana
* A living Callorhinus ursinus, or northern fur seal Callorhinus – tentative report
* ] †Calocedrus
** †Calocedrus schornii
* †Calycocarpum
** †Calycocarpum crassicrustae
* Calyptraea
** †Calyptraea diegoana
** †Calyptraea fastigiata
** †Calyptraea inornata
** †Calyptraea sookensis
* †Camelops
** †Camelops hesternus
* Cancellaria
** †Cancellaria oregonensis
** †Cancellaria siletzensis
* Canis
** Modern mounted skeleton of Canis lupus, the grey wolf, to scale with a fossilized skeleton of the Pleistocene wolf Canis dirus, or dire wolf †Canis dirus – or unidentified comparable form
** †Canis edwardii
** †Canis latrans
** †Canis lupus – or unidentified comparable form
* Cardiomya
** †Cardiomya anaticepsella – type locality for species
** †Cardiomya pavascotti
* †Carpocyon
* †Carpolithus
** †Carpolithus bellisperma
* A living Carya, or hickory tree Carya
* Caryophyllia
** †Caryophyllia oregonensis – type locality for species
* Castanea
** †Castanea basidentata
* Castanopsis
** †Castanopsis crepetii
** †Castanopsis longifolius
* Castor
* †Catalpa
* Cedrela
** †Cedrela merrillii
* †Cedrelospermum
** †Cedrelospermum lineatum
* Celleporina
* Celtis
** †Celtis burnhamae
* †Centrocercus
** †Centrocercus urophasianus
* Cercidiphyllum
** †Cercidiphyllum crenatum
* Flowers of a living Cercis or redbud tree Cercis
** †Cercis maurerae
* Cerithiopsis
** †Cerithiopsis preussi – or unidentified comparable form
* †Chandlera
** †Chandlera lacunosa
* †Charitonetta
** †Charitonetta albeola
* Chen
** †Chen hyperborea
** †Chen rossii
* Life restoration of the Pleistocene-Holocene Chendytes, or Law's diving-goose †Chendytes
* Chione
** †Chione ensifera
** †Chione securis
* Chlidonias
** †Chlidonias nigra
* Chlorostoma
** †Chlorostoma pacificum
* †Choerodon
** †Choerodon caninus
* †Chrysodomus
** †Chrysodomus bairdi
** †Chrysodomus imperialis
** †Chrysodomus nodiferus
** †Chrysodomus phoenicus
** †Chrysodomus tabulatus
* Ciliatocardium
** †Ciliatocardium coosense
* †Cinnamomophyllum
** †Cinnamomophyllum bendirei
* Circus
** †Circus eyaneus
* Cladrastis
** †Cladrastis oregonensis
* Clangula
** A living Clangula hyemalis, or long-tailed duck †Clangula hyemalis
* Cleyera
** †Cleyera grotei
* Clinocardium
** †Clinocardium meekianum
** †Clinocardium nuttallii
* †Clivuloturris
** †Clivuloturris levis – or unidentified comparable form
* Cochliolepis – tentative report
** †Cochliolepis schoonerensis
* Colaptes
** †Colaptes cafer
* †Colodon
* Columbella
** †Columbella gausapata
* Shells in differing orientations of Colus whelk sea snails Colus – tentative report
** †Colus precursor
* Colymbus
** †Colymbus holbellii
** †Colymbus nigricollis
** †Colymbus oligocaenus – type locality for species
** †Colymbus parvus
* †Comicilabium
** †Comicilabium atkinsii
* Comitas
** †Comitas monile
** †Comitas oregonensis
** †Comitas spencerensis
* †Comminicarpa
** †Comminicarpa friisae
* Comptonia
** †Comptonia columbiana
* †Conchocele
** †Conchocele bathyaulax
** †Conchocele bisecta
** †Conchocele taylori
* Conomitra
** †Conomitra vernoniana – type locality for species
* Fossilized shell of a Conus cone snail Conus
** †Conus armentrouti – type locality for species
** †Conus weltoni – type locality for species
* †Copemys
** †Copemys barstowensis
** †Copemys esmeraldensis
** †Copemys pagei
* †Cophocetus – type locality for genus
** †Cophocetus oregonensis – type locality for species
* Corbula
** †Corbula dickersoni
* †Cormocyon
** †Cormocyon copei
* Cornus
** †Cornus clarnensis
* †Cornwallius
** †Cornwallius sookensis
* Corvus
** †Corvus annectens – type locality for species
** †Corvus corax
* †Coryloides
** †Coryloides hancockii
* Fossilized fruit of a Craigia plant Craigia
** †Craigia oregonensis
* Crataegus
** †Crataegus merriamii
** †Crataegus newberryi
* Crenella
** †Crenella porterensis – or unidentified comparable form
* Crepidula
** †Crepidula adunca
** †Crepidula grandis – or unidentified comparable form
** †Crepidula praerupta
** †Crepidula princeps
** †Crepidula ungana
* †Cruciptera
** †Cruciptera simsonii
* †Crusafontina
** †Crusafontina minima
* Cryptomya
** †Cryptomya californica
* Cryptonatica
** †Cryptonatica affinis
** †Cryptonatica oregonensis
** †Cryptonatica pittsburgensis
* A taxidermied Cryptotis , or small-eared shrew Cryptotis
** †Cryptotis adamsi
* †Cuneisemen
** †Cuneisemen truncatum
* †Cunninghamia
** †Cunninghamia chaneyi
* †Cupidinimus
** †Cupidinimus magnus
* †Curvitinospora
** †Curvitinospora formanii
* Cyclocardia
** †Cyclocardia hannibali – or unidentified comparable form
** †Cyclocardia moniligena
** †Cyclocardia subtenta
** †Cyclocardia ventricosa
* †Cyclotella
** †Cyclotella jonesii – type locality for species
* Cygnus
** †Cygnus paloregonus
* Cymatium
** †Cymatium pacificum
* †Cynarctoides
** †Cynarctoides lemur
** †Cynarctoides luskensis – or unidentified comparable form
* Fossilized cranium of the Miocene bear-dog Cynelos †Cynelos
** †Cynelos sinapius
* †Cynorca
* †Cyperacites

## D

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Daeodon
* Dafila
** †Dafila acuta
* †Daphoenodon
** †Daphoenodon robustum
* †Daphoenus
** †Daphoenus socialis
* †Dasmia
** †Dasmia americana – type locality for species
* Mounted fossilized skeleton of the Eocene pseudo-toothed bird Dasornis †Dasornis – or unidentified related form
* †Davisicarpum
** †Davisicarpum limacioides
* Decodon
** †Decodon brownii
* Delectopecten
** †Delectopecten peckhami
* Dendragapus – type locality for genus
** †Dendragapus gillii – type locality for species
* †Dendrogapus
** †Dendrogapus lucasi
** †Dendrogapus nanus
* Dentalium
** †Dentalium laneensis
** †Dentalium pseudonyma
** †Dentalium rectius
** †Dentalium stentor
* †Dentisemen
** †Dentisemen parvum
* †Desmatippus
** †Desmatippus avus
* †Desmatochoerus
** †Desmatochoerus leidyi
* †Desmatolagus
* †Desmatophoca
** †Desmatophoca oregonensis
* †Desmocyon
** †Desmocyon thomsoni
* Life restoration of the Oligocene-Miocene herbivorous marine mammal Desmostylus †Desmostylus
** †Desmostylus hesperus – type locality for species
* †Deviacer
** †Deviacer wolfei
* †Diceratherium
** †Diceratherium annectens
** †Diceratherium armatum
* †Dilophodelphis – type locality for genus
** †Dilophodelphis fordycei – type locality for species
* †Dinaelurus
** †Dinaelurus crassus
* Life restoration of the Eocene-Miocene false saber-toothed cat Dinictis. Robert Bruce Horsfall (1913). †Dinictis
** †Dinictis cyclops
* †Diplobunops
** †Diplobunops kardoula – type locality for species
* Diploclisia
** †Diploclisia auriformis
* †Diplodipelta – type locality for genus
** †Diplodipelta miocenica
** †Diplodipelta reniptera
* Diplodonta
** †Diplodonta parilis
* †Diploporus
** †Diploporus torreyoides
* †Dipoides
** †Dipoides smithi – type locality for species
** †Dipoides stirtoni – type locality for species
** †Dipoides vallicula
* †Diprionomys
** †Diprionomys parvus
* Dipteronia
* Discinisca
** †Discinisca oregonensis
* †Domninoides
* Dosinia
** †Dosinia whitneyi
* Horns and other fossils attributed to Dromomeryx †Dromomeryx
** †Dromomeryx borealis
* †Durocarpus
** †Durocarpus cordatus
* †Dyticonastis – type locality for genus
** †Dyticonastis rensbergeri – type locality for species

## E

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Echinophoria
** †Echinophoria dalli
* †Ectinochilus
** †Ectinochilus macilenta
* †Ekgmowechashala
* †Emmenopterys
** †Emmenopterys dilcheri
* Life restoration of the Oligocene-Miocene Enaliarctos and the toothed whale Macrodelphinus (background) †Enaliarctos
** †Enaliarctos barnesi – type locality for species
** †Enaliarctos emlongi – type locality for species
** †Enaliarctos mitchelli
** †Enaliarctos tedfordi – type locality for species
* Engelhardtia
** †Engelhardtia olsoni
* Enhydra
* †Enhydrocyon
** †Enhydrocyon prolatus
** †Enhydrocyon stenocephalus
* Ennucula
** †Ennucula nuculana
* Ensete †Ensete
** †Ensete oregonense – type locality for species
* †Entoptychus
** †Entoptychus individens
** †Entoptychus planifrons
** †Entoptychus wheelerensis
* †Eohypserpa
** †Eohypserpa scottii
* †Eopleurotoma
** †Eopleurotoma ornata – or unidentified related form
* †Eosiphonalia
** †Eosiphonalia oregonensis
* Epacroleda – report made of unidentified related form or using admittedly obsolete nomenclature
** †Epacroleda epacris
* Mounted fossilized skeleton of the Miocene bone-crushing dog Epicyon †Epicyon
** †Epicyon haydeni
** †Epicyon saevus
* †Epihippus
** †Epihippus gracilis
* Epilucina
** †Epilucina washingtoniana
* Epitonium
** †Epitonium condoni
** †Epitonium hindsii
** †Epitonium keaseyense
** †Epitonium keaseyensis
** †Epitonium schencki
** †Epitonium wyattdurhami – type locality for species
* Fossilized skull of the Oligocene-Miocene oreodont mammal Eporeodon †Eporeodon
** †Eporeodon occidentalis
** †Eporeodon trigonocephalus
* †Equisetum
* Equus
** †Equus pacificus
* †Eremochen – type locality for genus
** †Eremochen russelli – type locality for species
* †Erismatura
** †Erismatura jamaicensis
* Erolia
** †Erolia melanotos
* Ervilia – tentative report
** †Ervilia oregonensis
* †Eschatius
* †Eubrontotherium – type locality for genus
** †Eubrontotherium clarnoensis – type locality for species
* †Eucastor
** †Eucastor malheurensis
* Fossilized skeleton of the Miocene-Pliocene coyote-like canine Eucyon †Eucyon
** †Eucyon davisi
* †Euoplocyon
** †Euoplocyon brachygnathus
* Euphagus
** †Euphagus cyanocephalus
* Eurytellina
** †Eurytellina aduncanasa
* Euspira
** †Euspira clementensis
** †Euspira hotsoni
** †Euspira nuciformis
** †Euspira pallida
* †Eutrephoceras
** †Eutrephoceras oregonense
* Exbucklandia
** †Exbucklandia oregonensis
* †Exilia
** †Exilia bentsonae – type locality for species
** †Exilia lincolnensis

## F

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Fagus
** †Fagus pacifica
* Falco
** †Falco oregonus – type locality for species
* Felaniella
** †Felaniella snavelyi
* Ferminoscala
** †Ferminoscala dickersoni
* †Ferrignocarpus
** †Ferrignocarpus bivalvis
* A living Ficus, or fig tree Ficus
** †Ficus modesta
** †Ficus ocoyanum – or unidentified comparable form
* Fimbria
* †Fimbrialata
** †Fimbrialata wingii
* Flabellum
** †Flabellum oregonense – type locality for species
* †Flectorivus
** †Flectorivus microdontos
* †Florentiamys
* †Floridaceras
** †Floridaceras whitei
* Flower of the Eocene-Oligocene cocoa relative Florissantia †Florissantia
** †Florissantia ashwillii – type locality for species
** †Florissantia speirii
* †Fokieniopsis
** †Fokieniopsis praedecurrens
* †Fortunearites
** †Fortunearites endressii
* †Fothergilla
** †Fothergilla praeovata
* †Fragarites
** †Fragarites ramificans
* †Fraxinus
** †Fraxinus coulteri
* Fulgoraria
** †Fulgoraria indurata
* Fulgurofusus
** †Fulgurofusus serratus – type locality for species
* Fulica
** A living Fulica americana, or American coot Fulica americana
** †Fulica infelix – type locality for species
** †Fulica minor – type locality for species
* †Fusinis
** †Fusinis dilleri – type locality for species
* Fusinus
** †Fusinus coosensis
** †Fusinus dilleri

## G

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Gagaria
** †Gagaria crenularis – type locality for species
* A living Gaillardia, or blanket flower †Gaillardia
** †Gaillardia thomsoni
* Gari – tentative report
** †Gari furcata – or unidentified related form
* Gemmula
** †Gemmula bentsonae
** †Gemmula facula
** †Gemmula rockcreekensis
* †Gentilicamelus
** †Gentilicamelus cameloides – type locality for species
** †Gentilicamelus sternbergi
* Glaucionetta
** †Glaucionetta islandica
* †Globulicarpium
** †Globulicarpium levigatum
* Glycymeris
** †Glycymeris major
** †Glycymeris sagittata
** †Glycymeris septentrionalis
* Glyptocidaris
* †Goedertius – type locality for genus
** †Goedertius oregonensis – type locality for species
* Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium †Gomphotherium
** †Gomphotherium obscurum
* †Goniodontomys
** †Goniodontomys disjunctus – type locality for species
* Granula
** †Granula profundorum – type locality for species
* Gyrineum – report made of unidentified related form or using admittedly obsolete nomenclature
** †Gyrineum dilleri

## H

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Hadrianus
* Halesia
** †Halesia oregona
* Haliaeetus
** †Haliaeetus leucocephalus
* Fossilized mandible of the Eocene horse Haplohippus †Haplohippus
** †Haplohippus texanus
* †Haplomys
** †Haplomys liolophus
* †Hemiauchenia – tentative report
* †Hemipsalodon
** †Hemipsalodon grandis
* Hemithiris
** †Hemithiris psittacea
* †Heptacodon
* Heptranchias
** †Heptranchias howelli
* Life restoration of the Eocene-Miocene mammal Herpetotherium †Herpetotherium
** †Herpetotherium merriami
* †Hesperhys – or unidentified comparable form
* †Hesperogaulus
** †Hesperogaulus gazini – type locality for species
** †Hesperogaulus wilsoni – type locality for species
* †Hesperolagomys
** †Hesperolagomys galbreathi – or unidentified comparable form
* †Hesperosorex – tentative report
* Heteropora
* †Hexacarpellites
** †Hexacarpellites hallii
* Hiatella
* Himantopus
** †Himantopus mexicanus
* †Hippotherium
* Life restoration of the Eocene-Oligocene false saber-toothed cat Hoplophoneus. Robert Bruce Horsfall (1913). †Hoplophoneus
** †Hoplophoneus cerebralis
** †Hoplophoneus strigidens
* †Hovenia
** †Hovenia oregonensis
* Hydrangea
** †Hydrangea knowltonii
* †Hydrochelidon
** †Hydrochelidon nigra
* †Hypertragulus
** †Hypertragulus calcaratus
** †Hypertragulus hesperius
** †Hypertragulus planiceps
* Life restoration of the Miocene horse Hypohippus. Heinrich Harder (1920). †Hypohippus
** †Hypohippus osborni
* †Hypolagus
** †Hypolagus fontinalis
** †Hypolagus oregonensis – type locality for species
** †Hypolagus vetus
* †Hypomorphnus
** †Hypomorphnus sodalis – tentative report
* †Hypsidoris
** †Hypsidoris oregonensis – type locality for species
* †Hypsiops
** †Hypsiops breviceps
* †Hyrachyus
** †Hyrachyus eximius
* †Hystricops
** †Hystricops browni

## I

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Fossilized skull of the Miocene bear Indarctos †Indarctos
** †Indarctos oregonensis – type locality for species
* †Ingentisorex
** †Ingentisorex tumididens
* †Iodes
** †Iodes chandlerae
** †Iodes multirecticulata
* †Iodicarpa
** †Iodicarpa ampla
** †Iodicarpa lenticularis
* Isocrinus
* Isurus
** †Isurus planus

## J

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Jimomys
** †Jimomys lulli
* †Joejonesia
** †Joejonesia globosa
* †Juglandiphyllites
** †Juglandiphyllites cryptatus
* A living Juglans, or walnut tree Juglans
** †Juglans clarnensis
** †Juglans wheelerensis

## K

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Restoration of the Oligocene-Miocene horse Kalobatippus †Kalobatippus
* †Kardiasperma
** †Kardiasperma parvum
* Katherinella
** †Katherinella angustifrons
* †Keasius
** †Keasius taylori – type locality for species
* Kellia
** †Kellia saxiriva – type locality for species
** †Kellia vokesi – type locality for species
* †Keteleeria
** †Keteleeria rujadana
* †Kewia
** †Kewia marquamensis – type locality for species
* †Kolponomos
** †Kolponomos newportensis – type locality for species

## L

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Lacuna
** Illustration of shells in multiple views of Lacuna vincta, or northern lacuna sea snails †Lacuna vincta
* Lamelliconcha
** †Lamelliconcha clarki
* †Langtonia
** †Langtonia bisulcata
* †Lantanotherium
* Larus
** †Larus argentatus
** A living Larus californicus, or California gull †Larus californicus
** †Larus oregonus – type locality for species
** †Larus philadelphia
** †Larus pristinus – type locality for species
** †Larus robustus – type locality for species
* †Laurocalyx
** †Laurocalyx wheelerae
* †Laurocarpum
** †Laurocarpum hancockii
** †Laurocarpum nutbedensis
** †Laurocarpum raisinoides
* †Leguminocarpon
* †Leidymys
* Lepeta
** †Lepeta concentrica
* †Leptarctus
** †Leptarctus oregonensis
* Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon †Leptocyon
** †Leptocyon douglassi
** †Leptocyon mollis
** †Leptocyon vulpinus
* †Leptodontomys
** †Leptodontomys oregonensis – type locality for species
** †Leptodontomys quartzi
* Lepus
** †Lepus ennisianus
* Leukoma
** †Leukoma staminea
* †Lignicarpus
** †Lignicarpus crassimuri
* †Ligniglobus
** †Ligniglobus sinuosifibrae
* †Limicolavis
** †Limicolavis pluvianella – type locality for species
* Limnodromus
** A living Limnodromus griseus, or short-billed dowitcher †Limnodromus griseus – tentative report
* †Limnoecus
** †Limnoecus tricuspis – or unidentified comparable form
* Lindera
** †Lindera clarnensis
** †Lindera oregona
* †Liodontia
** †Liodontia alexandrae
** †Liodontia furlongi
* The autumn foliage of a living Liquidambar, or sweetgum tree Liquidambar
* †Liracassis
** †Liracassis petrosa
* †Litheuphaea – type locality for genus
** †Litheuphaea carpenteri – type locality for species
* †Lithocarpus
** †Lithocarpus klamathensis
* †Litorhadia
** †Litorhadia astoriana
** †Litorhadia washingtonensis
** †Litorhadia washingtoni
* †Litseaphyllum
** †Litseaphyllum presanguinea
* Littorina
** †Littorina remondi
* †Lobipes
** †Lobipes lobatus
* Lophodytes
** A living Lophodytes cucullatus, or hooded merganser †Lophodytes cucullatus
* †Lophopanopeus
** †Lophopanopeus baldwini – type locality for species
* †Lophortyx
** †Lophortyx shotwelli – type locality for species
* Lucinoma
** †Lucinoma acutilineata
** †Lucinoma columbiana
* †Lunaticarpa
** †Lunaticarpa curvistriata
* †Lutravus
** †Lutravus halli – or unidentified comparable form
* Lynx
** †Lynx longignathus
* A living Lytechinus sea urchin Lytechinus
** †Lytechinus baldwini – type locality for species

## M

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Macginicarpa
** †Macginicarpa glabra
* Fossilized cranium of the Miocene-Pleistocene saber-toothed cat Machairodus †Machairodus
* †Machilus
** †Machilus asiminoides
* Macoma
** †Macoma albaria
** †Macoma arcatata
** †Macoma astori
** †Macoma calcarea
** †Macoma golikovi
** †Macoma inquinata
** Shell of Macoma nasuta, or the bent-nosed clam †Macoma nasuta
** †Macoma vancouverensis
* Macrocallista
** †Macrocallista pittsburgensis
* †Macrognathomys
** †Macrognathomys nanus
* Mactromeris
** †Mactromeris albaria
** †Mactromeris pittsburgensis
** †Mactromeris polynyma
** †Mactromeris ramonensis
** †Mactromeris veneriformis
* Close-up view of a Magnolia flower Magnolia
** †Magnolia muldoonae
** †Magnolia paroblonga
** †Magnolia tiffneyi
* Mahonia
** †Mahonia simplex
* †Malus – or unidentified comparable form
* †Mammut
** †Mammut furlongi – type locality for species
* †Mammuthus
** Life restoration of a herd of Mammuthus columbi, or Columbian mammoths. The extent of the fur depicted is hypothetical. Charles R. Knight (1909). †Mammuthus columbi – tentative report
* Marcia
** †Marcia bunkeri
** †Marcia oregonensis
* Margarites
** †Margarites pupilla
* †Marshochoerus
** †Marshochoerus socialis
* Martes
** †Martes gazini – type locality for species
* Martesia
** †Martesia turnerae
* Mastixia
* †Mastixicarpum
** †Mastixicarpum occidentale
* †Mastixioidiocarpum
** †Mastixioidiocarpum oregonense
* Megachasma
** †Megachasma applegatei
* Mounted fossilized skeleton of the Miocene-Pleistocene ground sloth Megalonyx †Megalonyx
* †Megapaloelodus
** †Megapaloelodus opsigonus – type locality for species
* †Megatylopus
* Megayoldia
** †Megayoldia chehalisensis
* Melanitta
** †Melanitta deglandi
** †Melanitta perspicillata
* †Meliosma
** †Meliosma beusekomii
** †Meliosma bonesii
** †Meliosma elongicarpa
** †Meliosma jenkinsii
** †Meliosma leptocarpa
* †Meniscomys
** †Meniscomys uhtoffi
* †Menispermum – or unidentified comparable form
* Mergus
** †Mergus merganser
** †Mergus serrator
* Life restoration of the Miocene three-toed horse Merychippus †Merychippus
** †Merychippus brevidontus
** †Merychippus relictus
* †Merychyus
** †Merychyus arenarum
** †Merychyus minimus
* †Merycochoerus
** †Merycochoerus magnus
** †Merycochoerus matthewi
** †Merycochoerus minor
* †Merycoides
** †Merycoides longiceps
* †Merycoidodon
** †Merycoidodon bullatus
* Skull fossils of the Oligocene-Miocene dog Mesocyon †Mesocyon
** †Mesocyon brachyops
** †Mesocyon coryphaeus
* †Mesohippus
** †Mesohippus bairdi – or unidentified comparable form
* †Metalopex
** †Metalopex merriami
* Metasequoia
** †Metasequoia occidentalis
* †Microphallus
** †Microphallus perplexus
* Micropodium
** †Micropodium ovatum
* †Micropternodus
** †Micropternodus morgani
* Microtus
** †Microtus montanus
* Fossilized skull of the Eocene-Oligocene three-toed horse Miohippus †Miohippus
** †Miohippus intermedius
* †Miopleionia
** †Miopleionia oregonensis
* †Mioplejonia
** †Mioplejonia oregonensis
* †Miotapirus
* †Mistia – type locality for genus
** †Mistia spinosa – type locality for species
* Modiolatus
** †Modiolatus rectus
* Modiolus
** †Modiolus eugenensis
** †Modiolus modiolus
* †Molopophorus
** †Molopophorus anglonana
** †Molopophorus dalli
** †Molopophorus fishii
** †Molopophorus gabbi
** †Molopophorus matthewi
* Molothrus
** †Molothrus ater – tentative report
* †Monosaulax
** †Monosaulax progressus – type locality for species
** †Monosaulax typicus – type locality for species
* †Moropus
** †Moropus oregonensis
* Mulinia
** †Mulinia eugenensis
* Mustela
* †Mya
** †Mya grewingki
** †Mya truncata
* †Mylagaulodon
** †Mylagaulodon angulatus
* Myotis – or unidentified comparable form
* †Mystipterus
** †Mystipterus pacificus
* †Mystocheilus – type locality for genus
** †Mystocheilus fresti – type locality for species
* Mytilus
** †Mytilus californianus
** †Mytilus edulis
** †Mytilus middendorffi
** †Mytilus snohomishensis

## N

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Nanotragulus – or unidentified comparable form
* A living Nassarius, or nassa mud snail Nassarius
** †Nassarius arnoldi
** †Nassarius fossata
** †Nassarius lincolnensis
** †Nassarius perpinguis
* Natica
** †Natica thomsonae
** †Natica weaveri
* †Nautilus
** †Nautilus angustatus – type locality for species
* Nectandra
** †Nectandra presannguinea
* †Nehalemia – type locality for genus
** †Nehalemia delicata – type locality for species
* Nemocardium
** †Nemocardium formosum
** †Nemocardium griphus – or unidentified comparable form
** †Nemocardium linteum
* †Neohipparion
** †Neohipparion leptode – or unidentified comparable form
* Mounted fossilized skeleton of the Miocene Neophrontops Neophrontops
** †Neophrontops dakotensis
* Neotamias
** †Neotamias malloryi
* †Nephrosemen
** †Nephrosemen reticulatus
* Nettion
** †Nettion bunkeri
* †Neurotrichus – tentative report
** †Neurotrichus columbianus
* Neverita
** †Neverita globosa
** †Neverita jamesae
** †Neverita thomsonae
** †Neverita washingtonensis
* †Nexuotapirus
** †Nexuotapirus robustus
* Nucella
** †Nucella decemcostata
** †Nucella lamellosa
** †Nucella saxicola
* Interior of a fossilized shell of the Early Ordovician-modern marine bivalve Nucula Nucula
** †Nucula vokesi
* Nuculana
** †Nuculana gabbi
** †Nuculana nuculana
* Numenius
** †Numenius americanus – tentative report
* †Nuphar
* Nutricola
** †Nutricola lordi
** †Nutricola tantilla
* Nyroca
** †Nyroca affinis
** †Nyroca americana
** †Nyroca collaris – tentative report
* †Nyssa
** †Nyssa scottii
** †Nyssa spatulata

## O

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Ocajila
* A living Ochotona, or pika Ochotona
** †Ochotona spanglei – type locality for species
* Ocotea
** †Ocotea ovoidea
* †Ocyplonessa
** †Ocyplonessa shotwelli – type locality for species
* †Odontocaryoidea
** †Odontocaryoidea nodulosa
* †Ogmophis – type locality for genus
** †Ogmophis oregonensis – type locality for species
* Olar
** †Olar buccinator
* †Olequahia
** †Olequahia schencki
* †Oligobunis
* Olivella
** Three living Olivella biplicata, or purple dwarf olive sea snail †Olivella biplicata
** †Olivella mathewsonii
** †Olivella pedroana
* †Omsicarpium
** †Omsicarpium striatum
* Ondatra
** †Ondatra annectens – type locality for species
* Opalia
** †Opalia hertleini
** †Opalia williamsoni – or unidentified comparable form
* †Oregonomys
** †Oregonomys pebblespringsensis – type locality for species
** †Oregonomys sargenti
* †Oreodontoides
** †Oreodontoides oregonensis
* †Oreolagus
** †Oreolagus wallacei – type locality for species
* †Oryctoantiquus – type locality for genus
** †Oryctoantiquus borealis – type locality for species
* †Osbornodon
** †Osbornodon sesnoni
* Living Osmunda ferns †Osmunda
** †Osmunda occidentale
* Ostrea
** †Ostrea lurida – or unidentified comparable form
* Ostrya
** †Ostrya oregoniana

## P

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Pachycrommium
** †Pachycrommium clarki
* †Paciculus
* †Pacificotaria – type locality for genus
** †Pacificotaria hadromma – type locality for species
* †Palaeoallophylus
** †Palaeoallophylus globosa
** †Palaeoallophylus gordonii
* †Palaeocarya
** †Palaeocarya clarnensis
** †Palaeocarya olsonii – or unidentified comparable form
* Life restoration of the Oligocene-Miocene beaver Palaeocastor †Palaeocastor
** †Palaeocastor peninsulatus
* †Palaeolagus
** †Palaeolagus haydeni
* †Palaeophytocrene
** †Palaeophytocrene hancockii
** †Palaeophytocrene pseudopersica
* †Palaeosinomenium
** †Palaeosinomenium venablesii
* †Paleopanax
** †Paleopanax oregonensis
* †Paleoplatycarya – tentative report
** †Paleoplatycarya hickeyi
* †Paleotetrix
** †Paleotetrix gilli
* Flowers and foliage of a living Paliurus Paliurus
** †Paliurus blakei
* Pandora
** †Pandora eocapsella
** †Pandora grandis
** †Pandora laevis
* Panomya
** †Panomya ampla
* Panopea
** †Panopea abrupta
** †Panopea ramonensis
** †Panopea snohomishensis
* Panthera
** A living Panthera onca, or jaguar †Panthera onca – or unidentified comparable form
* †Parablastomeryx
* †Paracarpinus
** †Paracarpinus chaneyi
* †Paracosoryx
** †Paracosoryx nevadensis – or unidentified comparable form
* †Paracryptotis
** †Paracryptotis rex
* †Paradaphoenus
** †Paradaphoenus cuspigerus
* †Paradomnina
** †Paradomnina relictus – type locality for species
* †Paraenhydrocyon
** †Paraenhydrocyon josephi
** †Paraenhydrocyon wallovianus
* †Parahippus
** †Parahippus leonensis – or unidentified related form
** †Parahippus pawniensis
* Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon †Paramylodon
** †Paramylodon harlani
* †Parapaenemarmota
** †Parapaenemarmota oregonensis
* Parapholas
** †Parapholas californica
* †Parapliosaccomys
** †Parapliosaccomys oregonensis
* †Parasyrinx
** †Parasyrinx delicata
* †Paratomarctus
** †Paratomarctus temerarius
* Life restoration the Eocene-Oligocene camel Paratylopus (upper right) †Paratylopus
* †Paronychomys
** †Paronychomys shotwelli – type locality for species
* †Paroreodon
** †Paroreodon parvus
** †Paroreodon stocki
* †Parrotia
** †Parrotia brevipetiolata
* †Parthenocissus
** †Parthenocissus angustisulcata
** †Parthenocissus clarnensis
* Parvamussium
** †Parvamussium astoriana
* Parvicardium
** †Parvicardium eugenense
* Passalus
** †Passalus indormitus – type locality for species
* †Pasternackia
** †Pasternackia pusilla
* Patinopecten
** †Patinopecten caurinus
** †Patinopecten coosensis
** †Patinopecten oregonensis
** †Patinopecten popatulus
** †Patinopecten propatulus
* †Patriofelis
** †Patriofelis ferox
* †Pediocetes
** †Pediocetes lucasii – type locality for species
** †Pediocetes nanus – type locality for species
** †Pediocetes phasianellus
* Pekania
** †Pekania occulta – type locality for species
* Life restoration of the Oligocene-Pleistocene false-toothed bird Pelagornis †Pelagornis
* Pelecanus
** †Pelecanus erythrorhynchos
** †Pelecanus erythrorhynchus – tentative report
* Penitella
** †Penitella penita
* †Pentoperculum
** †Pentoperculum minimus
* †Perchoerus
** †Perchoerus probus
* †Peridiomys
** †Peridiomys oregonensis
* Periploma
* Perognathus
** †Perognathus stevei – type locality for species
* A living Peromyscus, or deer mouse Peromyscus
** †Peromyscus antiquus
** †Peromyscus dentalis
* †Perse
** †Perse lincolnensis
** †Perse pittsburgensis
* †Petauristodon
* Phalacrocorax
** †Phalacrocorax auritus – tentative report
** †Phalacrocorax leptopus – type locality for species
** †Phalacrocorax macropus
** †Phalacrocorax marinavis – type locality for species
* Phalaropus
** †Phalaropus lobatus
* Phalium
** †Phalium aequisulcatum
** †Phalium turricula
* Phanerolepida
** †Phanerolepida oregonensis
* †Philotrox
** †Philotrox condoni
* †Phlaocyon
** †Phlaocyon latidens
* Phoca
** †Phoca vitulina – or unidentified comparable form
* †Phocavis – type locality for genus
** †Phocavis maritimus – type locality for species
* Two Phoenicopterus, or flamingos Phoenicopterus
** †Phoenicopterus copei – type locality for species
* †Pileosperma
** †Pileosperma minutum
** †Pileosperma ovatum
* †Pinckneya
** †Pinckneya dilcheri
* †Pinis
** †Pinis johndayensis
* †Pinnarctidion
** †Pinnarctidion rayi – type locality for species
* A living Pinus, or pine tree Pinus
** †Pinus johndayensis
** †Pinus knowltoni
* †Pistachioides
** †Pistachioides striata
* Pitar
** †Pitar clarki
** †Pitar dalli
* †Plafkeria
** †Plafkeria obliquifolia
* †Plagiolophus
** †Plagiolophus weaveri
* Platanus
** †Platanus condoni
** †Platanus condonii
** †Platanus dissecta
** †Platanus exaspera
** †Platanus hirticarpa
* Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus. Charles R. Knight (1922). †Platygonus
** †Platygonus brachirostris
** †Platygonus oregonensis
** †Platygonus vetus – or unidentified comparable form
* †Pleiolama
** †Pleiolama vera – or unidentified comparable form
* †Plesiocolopirus
** †Plesiocolopirus hancocki
* †Plesiogulo
** †Plesiogulo marshalli
* †Plesiosorex
** †Plesiosorex donroosai – or unidentified comparable form
* †Pleurolicus
** †Pleurolicus sulcifrons
* †Pleurolira
** †Pleurolira oregonensis
* †Pleuroliria
** †Pleuroliria bicarinata
* †Plioceros
* †Pliocyon – or unidentified comparable form
** †Pliocyon medius
* Fossilized skull of the Miocene horse Pliohippus †Pliohippus
** †Pliohippus spectans
* †Plionarctos
* †Plionictis
** †Plionictis ogygia
** †Plionictis oregonensis
* †Pliosaccomys
* †Pliotaxidea
** †Pliotaxidea nevadensis
* †Pliozapus
** †Pliozapus solus
* Podiceps
** †Podiceps auritus – tentative report
* Podilymbus
** †Podilymbus podiceps
* Pododesmus
** †Pododesmus macrochisma
* Life restoration of the Oligocene false saber-toothed cat Pogonodon in a tree †Pogonodon
** †Pogonodon brachyops
** †Pogonodon platycopis – type locality for species
* Polinices
** †Polinices canalis
** †Polinices draconis
** †Polinices galianoi
** †Polinices washingtonensis
** †Polinices washingtoni
* †Polinicies
** †Polinicies clementensis
** †Polinicies nuciformis
* †Pollostosperma
** †Pollostosperma dictyum
* †Polygrana
** †Polygrana nutbedense
* Fronds of living Polypodium ferns †Polypodium – or unidentified comparable form
* †Pontolis – type locality for genus
** †Pontolis magnus – type locality for species
* †Potamogeton
** †Potamogeton parva
* †Potanospira
** †Potanospira fryi
* †Praehyalocylis
** †Praehyalocylis cretacea
* †Priscofusus
** †Priscofusus coli – or unidentified comparable form
** †Priscofusus geniculus
** †Priscofusus medialis
** †Priscofusus medialus
** †Priscofusus stewarti
* †Pristichampsus
* †Procadurcodon – report made of unidentified related form or using admittedly obsolete nomenclature
* †Procamelus
** †Procamelus grandis – or unidentified comparable form
* †Procerapex
** †Procerapex bentsonae
* Proischyromys – type locality for genus
** †Proischyromys perditus – type locality for species
* †Promartes – or unidentified comparable form
* †Promerycochoerus
** †Promerycochoerus macrostegus
** †Promerycochoerus superbus
* †Proneotherium – type locality for genus
** †Proneotherium repenningi – type locality for species
* †Pronotolagus
* Propeamussium
** †Propeamussium clallamensis – or unidentified comparable form
* †Prosomys
** †Prosomys mimus – type locality for species
* †Prosthennops
** †Prosthennops serus – tentative report
* †Proterozetes – type locality for genus
** †Proterozetes ulysses – type locality for species
* Life restoration of the Eocene brontothere mammal Protitanops †Protitanops
** †Protitanops curryi
* †Protolabis – or unidentified comparable form
* †Protorepomys – type locality for genus
* †Protospermophilus
** †Protospermophilus malheurensis
* Protothaca
** †Protothaca staleyi
* †Pruniticarpa
** †Pruniticarpa cevallosii
* Prunus
** †Prunus olsonii
** †Prunus weinsteinii
* Psammacoma
** †Psammacoma arctata
* †Psephophorus – tentative report
** †Psephophorus oregonensis – type locality for species
* Restoration of the Miocene cat Pseudaelurus †Pseudaelurus
* †Pseudoblastomeryx
** †Pseudoblastomeryx advena
* †Pseudotheridomys
** †Pseudotheridomys pagei
* †Pseudotomus
* †Pseudotrimylus
** †Pseudotrimylus mawbyi
* †Pseudotsuga
** †Pseudotsuga laticarpa
* Pteris
** †Pteris silvicola
* Pterocarya
** †Pterocarya mixta
** †Pterocarya occidentalis
* †Pteronarctos – type locality for genus
** †Pteronarctos goedertae – type locality for species
** †Pteronarctos piersoni – type locality for species
* †Pteronepelys
** †Pteronepelys wehrii
* †Pulvinisperma
** †Pulvinisperma minutum
* Puncturella
** †Puncturella galeata
* Pupillaria – tentative report
* Purpura
** †Purpura foliata
** †Purpura lurida
* Pyramidella – tentative report
* Pyrenacantha
** †Pyrenacantha occidentalis
* †Pyrisemen
** †Pyrisemen attenuatum
* Fruit of a living Pyrus, or pear tree †Pyrus
** †Pyrus oregonensis

## Q

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* A living Quercus, or oak tree Quercus
** †Quercus berryi
** †Quercus consimilis
** †Quercus paleocarpa
* Querquedula
** †Querquedula pullulans – type locality for species
* †Quintacava
** †Quintacava velosida

## R

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Raja
* Rallus
** †Rallus limicola
* Raninoides
** †Raninoides washburnei
* Recurvirostra
** A living Recurvirostra americana, or American avocet †Recurvirostra americana
* Retusa
** †Retusa petrosa
** †Retusa tantilla
** †Retusa turneri
* Rhabdus
** †Rhabdus schencki
* †Rhizocyon
** †Rhizocyon oregonensis
* Rhus
** †Rhus lesquereuxii
** †Rhus rooseae
** †Rhus varians
* †Ribes
* Rimella
* Rosa
** †Rosa hilliae
* A living member of Rubus, the genus including blackberries (pictured) and raspberries Rubus
** †Rubus ameyeri
** †Rubus fremdii
* †Rudiocyon – type locality for genus
** †Rudiocyon amplidens – type locality for species
* †Rudiomys
** †Rudiomys mcgrewi

## S

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Living Sabal, or palmettos Sabal
** †Sabal bracknellense
** †Sabal jenkinsii
* †Sabia
** †Sabia prefoetida
* Saccella
** †Saccella amelga
** †Saccella calkinsi
* Salenia
** †Salenia cascadensis – type locality for species
** †Salix schimperi
* †Sambucuspermites
** †Sambucuspermites rugulosus
* Sanguinolaria
** †Sanguinolaria townsendensis
* †Saportaspermum
** †Saportaspermum occidentalis
* Sargentodoxa
** †* Sargentodoxa globosa – type locality for species
* Sassia
** †Sassia bilineata
* Saxicavella
** †Saxicavella burnsi
* Saxidomus
** Shell of a living Saxidomus gigantea, or butter clam †Saxidomus gigantea
** †Saxidomus giganteus
* †Saxifragispermum
** †Saxifragispermum tetragonalis
* †Scabraecarpium
** †Scabraecarpium clarnense
* †Scalaritheca
** †Scalaritheca biseriata
* Scalina
** †Scalina becki
** †Scalina dickersoni – or unidentified related form
* †Scalopoides
** †Scalopoides ripafodiator
* †Scapanoscapter
** †Scapanoscapter simplicidens
* Scapanus
** †Scapanus latimanus
** †Scapanus proceridens
** †Scapanus shultzi – or unidentified comparable form
* Shells in multiple views of a Scaphander canoe bubble sea snail Scaphander
** †Scaphander impuncatatus
** †Scaphander impunctatus – type locality for species
** †Scaphander stewarti
* †Scaphicarpium
** †Scaphicarpium radiatum
* †Schisandra
** †Schisandra oregonensis
* Schizaster
** †Schizaster diabloensis
* †Schizodontomys
** †Schizodontomys greeni
* A living Sciurus squirrel Sciurus
** †Sciurus ballovianus
** †Sciurus wortmani
* †Scolecophagus
** †Scolecophagus affinis – type locality for species
* †Scutella
** †Scutella gabbi
* Searlesia – tentative report
** †Searlesia carlsoni
* Semele
** †Semele willamettensis
* Sequoia
** †Sequoia affinis
* †Seuku
** †Seuku emlongi – type locality for species
* †Sewellelodon
** †Sewellelodon predontia – or unidentified comparable form
* Sideroxylon
** †sideroxylon? subangularis – type locality for species
* Siliqua
** †Siliqua patula
* †Simocetus – type locality for genus
** †Simocetus rayi – type locality for species
* Reconstruction of a fossilized skull and restorative portrait of the Miocene-Pliocene red panda relative Simocyon †Simocyon
** †Simocyon primigenius
* Simomactra
** †Simomactra falcata
* Sinum
** †Sinum obliquum
** †Sinum scopulosum
* Solariella
** †Solariella cicca – type locality for species
** †Solariella cidaris
* Solemya
** †Solemya ventricosa
* Solen
** †Solen sicarius
** †Solen townsendensis
* Solena
** †Solena conradi
** †Solena eugenensis
** †Solena novacularis
* A living Somatochlora dragonfly †Somatochlora
** †Somatochlora oregonica – type locality for species
* Spermophilus
** †Spermophilus gidleyi
** †Spermophilus mckayensis
** †Spermophilus shotwelli
** †Spermophilus tephrus
** †Spermophilus wilsoni
* †Sphaerosperma
** †Sphaerosperma riesii
* †Sphenophalos
* †Sphenosperma
** †Sphenosperma baccatum
* †Spirocrypta
** †Spirocrypta pileum
* Spirotropis
** †Spirotropis calodius
** †Spirotropis kincaidi
** †Spirotropis washingtonensis
* Spisula
** †Spisula densata
** †Spisula eugenensis
* Spizaetus
** †Spizaetus pliogryps
* Fossilized partial skulls of the rodent Oligocene-Miocene Steneofiber †Steneofiber
** †Steneofiber gradatus
* Stephanodiscus
** †Stephanodiscus excentricus
** †Stephanodiscus niagarae
** †Stephanodiscus rhombus – type locality for species
* Stercorarius
** †Stercorarius schufeldti – type locality for species
* Sterna
** †Sterna elegans – tentative report
** †Sterna forsteri
** †Sterna fosteri – tentative report
* Fossilized skeleton of the Miocene weasel Sthenictis Sthenictis
** †Sthenictis junturensis – type locality for species
* †Stichopsammia – tentative report
** †Stichopsammia vokesi
* †Stockeycarpa
** †Stockeycarpa globosa
* †Stomechinus
** †Stomechinus dissimilaris – type locality for species
* †Striatisperma
** †Striatisperma coronapunctatum
* Strongylocentrotus
* Sturnella
* †Suavodrillia
** †Suavodrillia winlockensis
* Life restoration of the Eocene-Oligocene cow-sized rhinoceros Subhyracodon. Charles R. Knight (1890s). †Subhyracodon
* Surculites
** †Surculites condonana
** †Surculites wynoocheensis
* Sveltella
** †Sveltella exiliplex
** †Sveltella keaseyensis – type locality for species
* Symplocos
** †Symplocos nooteboomii

## T

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Tanyoplatanus
** †Tanyoplatanus cranei
* A living Tapirus, or tapir Tapirus
** †Tapirus californicus – or unidentified comparable form
* Tapiscia
** †Tapiscia occidentalis
* Taranis
** †Taranis columbiana
* †Tardontia
** †Tardontia occidentale – or unidentified comparable form
* Taxidea
* †Taxus
** †Taxus masonii
* Tegula
** †Tegula stantoni
* †Tejonia
** †Tejonia moragai
* Restoration of the Miocene-Pliocene rhinoceros Teleoceras †Teleoceras
** †Teleoceras fossiger
** †Teleoceras hicksi
** †Teleoceras medicornutum
* †Teletaceras
** †Teletaceras radinskyi – type locality for species
* Shell of a Tellina, or tellin Tellina
** †Tellina aduncanasa
** †Tellina aragonia
** †Tellina emacerata
** †Tellina eugenia
** †Tellina idae – or unidentified related form
** †Tellina lincolnensis
** †Tellina pittsburgensis
** †Tellina quasimacoma
* †Temnocyon
** †Temnocyon altigenis
** †Temnocyon fingeruti – type locality for species
* †Tenudomys – or unidentified comparable form
* †Tenuisperma
** †Tenuisperma ellipticum
* †Tephrocyon
** †Tephrocyon rurestris
* Terebratalia
** †Terebratalia occidentalis
* Terebratulina
** †Terebratulina unguicula
* Terminalia
** †Terminalia oregona
* Foliage and cones of a living Tetraclinis, or arar tree †Tetraclinis
** †Tetraclinis potlachensis
* Thais
** †Thais lamellosa
** †Thais lima – or unidentified related form
* †Thanikaimonia
** †Thanikaimonia geniculata
* Thesbia – report made of unidentified related form or using admittedly obsolete nomenclature
** †Thesbia antiselli: synonym of † Xenoturris antiselli (F. Anderson & B. Martin, 1914)
* †Thinohyus
** †Thinohyus lentus
* Thomomys
** †Thomomys townsendii
* Thracia
** †Thracia condoni
** †Thracia keaseyensis – type locality for species
** †Thracia trapezoides
* Fossilized skull of the Miocene oreodont mammal Ticholeptus †Ticholeptus
** †Ticholeptus zygomaticus
* †Ticholepus
** †Ticholepus zygomaticus
* †Tiffneycarpa
** †Tiffneycarpa scleroidea
* Tilia
** †Tilia aspera
** †Tilia circularis
** †Tilia fossilensis
** †Tilia lamottei
** †Tilia pedunculata
** †Tilia penduculata
* †Tinomiscoidea
** †Tinomiscoidea occidentalis
* Tinospora
** †Tinospora elongata
** †Tinospora hardmanae
* Foliage of a living Torreya, or nutmeg yew †Torreya
** †Torreya clarnensis
** †Torreya masonii
* Totanus
** †Totanus melanoleucas
* †Toxicodendron
** †Toxicodendron wolfei
* Trema
** †Trema nucilecta
* Tresus
** †Tresus pajaroanus
* Shell of a Trichotropis cap sea snail Trichotropis
** †Trichotropis cancellata
** †Trichotropis insignis
* †Trigonostela
** †Trigonostela oregonensis
* †Tripartisemen
** †Tripartisemen bonesii
* †Triplascapha
** †Triplascapha collinsonae
* †Triplexivalva
** †Triplexivalva rugata
* †Triplochitioxylon – type locality for genus
** †Triplochitioxylon oregonensis – type locality for species
* †Trisepticarpium
** †Trisepticarpium minutum
* †Tritonifusus
** †Tritonifusus rectirostis
* Trochita
* Shell of a Trophon murex snail Trophon
** †Trophon halibrectus
** †Trophon kernensis
** †Trophon platacantha – type locality for species
* †Truncatisemen
** †Truncatisemen sapotoides
* †Tsaphanomys – type locality for genus
** †Tsaphanomys shotwelli
* †Tsuga
** †Tsuga sonomensis
* Turricula
** †Turricula emerita
** †Turricula keaseyensis
* †Turrinosyrinx
** †Turrinosyrinx nodifera
** †Turrinosyrinx nodilifera
** †Turrinosyrinx packardi – or unidentified comparable form
* Turris
** †Turris coli
** †Turris impecunia
** †Turris perversa
** †Turris smithi
* Fossilized shells of the Late Jurassic-modern tower snail Turritella Turritella
** †Turritella buwaldana
** †Turritella keaseyense
** †Turritella keaseyensis – type locality for species
** †Turritella oregonensis
** †Turritella pittsburgensis
** †Turritella uvasana
* †Tylocephalonyx
* Tympanuchus
** †Tympanuchus pallidicinctus
* †Typhoides
** †Typhoides buzekii

## U

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* A living Ulmus, or elm Ulmus
** †Ulmus chaneyi
** †Ulmus speciosa
* †Ulospermum
** †Ulospermum hardingae
* †Unknown
* †Unknown dicotyledonous
* †Unknown monocotyledonous
* †Ursavus
** †Ursavus primaevus – or unidentified comparable form

## V

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Venericardia
** †Venericardia aragonia – or unidentified comparable form
** †Venericardia hornii
** †Venericardia merriami – or unidentified comparable form
** †Venericardia planicosta
* †Vertipecten
** †Vertipecten fucanus – or unidentified comparable form
* Leaves and fruit of a living Viburnum. †Viburnum
** †Viburnum tubmanum
* Leaves and fruit of a living Vitis, or grapevine Vitis
** †Vitis magnisperma
** †Vitis tiffneyi
* Vulpes
** †Vulpes stenognathus

## W

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Wheelera
** †Wheelera lingnicrusta

## X

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* A living Xema sabini, or Sabine's gull Xema
** †Xema sabinii
* †Xenicohippus
** †Xenicohippus craspedotum
* †Xylotitan – type locality for genus
** †Xylotitan cenosus – type locality for species

## Y

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* †Yaquinacetus – type locality for genus
** †Yaquinacetus meadi – type locality for species
* Yoldia
** †Yoldia cooperii – or unidentified comparable form
** †Yoldia impressa
** †Yoldia oregona
** †Yoldia seminuda
** †Yoldia tenuissima

## Z

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* Zalophus
** A living Zalophus californianus, or California sea lion †Zalophus californianus
* †Zanthopsis
** †Zanthopsis rathbunae – type locality for species
* Zelkova
** †Zelkova hesperia
** †Zelkova oregoniana
* †Zingiberopsis