List of the Cenozoic life of Washington (state)
This list of the Cenozoic life of Washington contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Washington and are between 66 million and 10,000 years of age.
A[]
- Abies
- Abies milleri - type locality for the species[1]
- Acanthocardia
- †
- Acer[2]
- †
- †Acer beckianum - type locality for species[3]
- †
- †Acer browni[4]
- †Acer chaneyi[4]
- †Acer hillsi - type locality for species[4]
- † - type locality for species[4]
- †Acer latahense - type locality for species[4]
- †[4]
- †[4]
- † - type locality for species[3]
- † - type locality for species[3]
- †Acer republicense - type locality for species[4]
- †Acer spitzi - type locality for species[4]
- †Acer stonebergae[4]
- †[4]
- †Acer toradense - type locality for species[4]
- †Acer washingtonense - type locality for species[4]
- † - type locality for the species[4]
- †Acer whitebirdense[4]
-
- †
- †Acherontemys – type locality for genus
- †Acherontemys heckmani – type locality for species
- Acidota
- Acila
- †
- †
- †
- †
- Aclypea
- Acrulia
- †
- Actium
- †
- †
- †
- † – type locality for species
- Aegialia
- Aesculus[2]
- † - type locality for species[5]
- Aforia
- †
- Agabus
- Agathidium
- †Aglyptorhynchus
- † – type locality for species
- Agonum
- †Agonum cupreum
- †Agonum ferruginosum
- †Ainigmapsychops – type locality for genus[6]
- †Ainigmapsychops inexspectatus – type locality for species[6]
- †
- †
- † – or unidentified comparable form
- †
- †Allodesmus
- †Allophylus
- † – or unidentified comparable form
- †Allorapisma – type locality for genus[9]
- †Allorapisma chuorum – type locality for species[9]
- Alniphagus
- Alnus
- Altica
- † – or unidentified comparable form
-
- †
- †
- Amara
- † – or unidentified comparable form
- Amauropsis
- †
- Amia
- †Amia hesperia[12]
- Ammospermophilus
- †
-
- †
- Amphistegina
- †Amyzon[12]
- †[12]
- †
- † – type locality for species[8]
- Anadara
- †
- † – or unidentified related form
- †Anamirta
- † – or unidentified comparable form
- Ancistrolepis
- †
- †
- †
- † – or unidentified comparable form
- Anemia[7]
- †[7]
- Anthrax
- † – type locality for species
- †
- †
- †Aphelops
- † – or unidentified comparable form
- Aphodius
- Aphrocallistes
- † – or unidentified comparable form
- Apion
- †
- †Arceuthobium
- †
- †
-
- † – type locality for species
- †
- †Arctostaphylos
- †
- Argobuccinum
- †
- †
- †
- Arpedium
- †
- Artemisia
-
- †
-
- †
- †Asplenium
- † – or unidentified comparable form
- Astrangia
- † – type locality for species
- Astreopora
- † – type locality for species
- † – type locality for species
- Athyrium
- † - type locality for species[7]
- Atomaria
- †Aturia
- †Aturia alabamensis – or unidentified comparable form
- †
- † – type locality for species
- Auleutes
- †Auleutes epilobii – or unidentified comparable form
- †Azolla
- †Azolla primaeva[13]
B[]
- Balanophyllia
- †
- † – type locality for species
- † – type locality for species
- † – type locality for species
- †
- † – type locality for species
- Balanus
- Barbatia
- †
- †Barghoornia - type locality for genus[11]
- †Barghoornia oblongifolia - type locality for species[11]
- Bassariscus
- † – or unidentified comparable form
- Bathybembix
- †
-
- †
- †
- †Behemotops – type locality for genus
- † – type locality for species
- Bembidion
- †Bembidion bimaculatum
- †Bembidion fortestriatum
- †Bembidion haruspex
- †Bembidion inaequale
- †Bembidion nigripes
- †Bembidion planiusculum
- †Bembidion rusticum
- †Berberis
- Betula
- †
- †
- †Betula leopoldae - type locality for species[11]
- Betula papyrifera – or unidentified comparable form
- Bibio
- Bison
- Bledius
- †[11]
- † - type locality for species[11]
- †Bombus
- † – type locality for species
- †Bonellitia
- †
- † – type locality for genus[14]
- † – type locality for species[14]
- †Borophagus
- †Borophagus diversidens
- †Borophagus hilli
- Botrychium
- †Botryococcus
- Brachidontes
- †
- †
- †Bretzia
- †Bretzia pseudalces – type locality for species
- †
- †
- †
- †
- Buccinum
- †
- †
- †
- Bulimina
- † – or unidentified comparable form
- †Bursera
- Byrrhus
C[]
- Cadulus
- †
- Caesalpinia
- † - type locality for species[15]
- Calathus
- †Calathus ruficollis
-
- †
- †Calkinsia - type locality of genus[8]
- † - type locality for species[8]
- † – or unidentified comparable form
- Callianassa – report made of unidentified related form or using admittedly obsolete nomenclature
- † - type locality for species[16]
- Calliostoma
- †
-
- †
- †
- †
- Calosoma
- † – type locality for species
- Calyptraea
- †
- †
- Camellia[8]
- †[8]
- †Camelops[citation needed]
- Cancellaria
- †
- † – or unidentified comparable form
- † – or unidentified comparable form
- † – or unidentified comparable form
- †
- Cancer
- †
- Canis
- †Canis lepophagus
- †Capromeryx
- † – type locality for species
- Carabus
- Carabus taedatus
- – tentative report
- †Carex
- Carpinus[17]
- †Carpinus perryae[17]
- Carya[2]
- Caryophyllia
- † – type locality for species
- † – type locality for species
- † – type locality for species
- Cassidulina
- † – or unidentified comparable form
- Castanea
- †
- Castanopsis
- † – type locality for species[8]
- Castor
- †Castor californicus
- Catops
- †[19]
- † species[19]
- Cedrus[2]
- Celastrus
- †
- Cephalotaxus
- Ceratophyllum
- †Ceratophyllum demersum
- Cercidiphyllum
- Cercyon
- †Cercyon luniger – or unidentified comparable form
- Cerithiopsis
- †
- †
- Cervus – tentative report
- †
- Chama
- Chamaecyparis
- †[2]
- Charina
- †Charina bottae
- †Cheilanthes
- †Chenopodium
-
- † – or unidentified comparable form
- Chione
- †
- †
- Chlaenius
- †Chlaenius interruptus
- Chlamys
- †Chlamys hastata
- †Chlamys islandica
- †
- †Chrysodomus
- †
- Cibicides
- †
- †
-
- †
- Cicindela
- †Cicindela oregona
- Cidarina
- † – type locality for species
- †Cimbrophlebia
- † – type locality for species
- † – type locality for species
- †
- † – type locality for species
- Cirsotrema
- †
- Cladrastis
- † –type locality for species[8]
- Clavus
- †
- Cleptelmis
- †
- Clinocardium
- †
- †Clinocardium nuttallii
- Cocculus
- † – or unidentified comparable form
- †Coenocyathus – tentative report
- † – type locality for species
- Colpophyllia
- † – type locality for species
- †Colwellia
- †
- Colymbetes
- Comptonia
- †
- †
- Conus
- †
- †
- †
- †
- †
- Corbicula
- †
- † – or unidentified comparable form
- Corbula
- †
- †
- Corixa
- †Cormocyon
- †
- Cornus
- †Cornus stolonifera
- Corticaria
- Corylopsis[21]
- †Corylopsis reedae - type locality for species[21]
- Corylus[17]
- †Corylus johnsonii[17]
- †Cosoryx
- † – or unidentified comparable form
- Cossonus
- †
- †
- †Cranioceras
- † – or unidentified comparable form
- Craniscus
- † – type locality for species
- †Craspedochiton
- †
-
- †
- †
- †
- Crenella – tentative report
- Crepidula
- †
- †
- †
- †
- †Cristispira
- †
- Crotalus
- †
- †
- †
- †
-
- †
- Cryptonatica
- †Cryptonatica affinis
- Cryptophagus
- Curimopsis
- Cyathea
- † – or unidentified comparable form
- †[7]
- Cyclammina
- †
- †
- Cyclocardia
- †
- †
- Cyclostremella
- Cymbiodyta
- †Cynarctus
- †
- Cypraea
- †
- †
- Cytilus
D[]
- Danaea
- † - type locality for species[7]
- Dascillus – tentative report
- † – type locality for species
- Deltocyathus
- † – type locality for species
- Dendroctonus
- Dendroctonus rufipennis
- Dendrophyllia
- † – type locality for species
- † – type locality for species
- †
- Dennstaedtia
- † - type locality for species[7]
-
- † – or unidentified comparable form
- † – or unidentified comparable form
- † – or unidentified comparable form
- †
- Dentalium
- †
- †
- †
- †
- †
- †
- †Desmatophoca
- †Desmatophoca brachycephala – type locality for species
- †Desmostylus
- †Desmostylus hesperus
- Dianous
- †
- Diapterna
- †Diceratherium
- †
-
- †
- †Dillhoffia[22]
- †Dillhoffia cachensis[22]
- †
- † – type locality for species
- †Dinofelis
- † – or unidentified comparable form
- †Dinokanaga[23]
- Diodora
- Diospyros[3]
- † - type locality for species[3]
- †
- †
- Diplodonta
- †Dipoides
- †
- †
- Dosinia
- †
- †
- † – type locality for species[8]
- Dryopteris
- Dyschiriodes
- Dyschirius
- †Dyschirius laevifasciatus
- †Dyschirius montanus
- Dytiscus
- † – type locality for species
E[]
- Echinophoria
- †
- †
- †
- †
-
- † – or unidentified comparable form
- Elaphe
- †
- †Elaphe vulpina
- Elaphrus
- †Elaphrus americanus
- †Elaphrus californicus
- †Elaphrus clairvillei
- †Elaphrus purpurans
- Eleocharis
- Elphidium
- Emarginula
- † – type locality for species
- †Enhydrocyon
- † - type locality for genus[24]
- † - type locality for species[24]
- †Eoprephasma – type locality for genus[25]
- †Eoprephasma hichensi – type locality for species[25]
- †
- † – type locality for species
- †Eorpa
- †Eorpa elverumi – type locality for species
- †Eorpa ypsipeda – tentative report
- †Eosalmo[12]
- †Eosalmo driftwoodensis[12]
- Ephedra
- Epitonium
- †
- †
- † – or unidentified related form
- †
-
- †
- †
- Epophthalmia
- † – type locality for species
- †Eporeodon
- †Equisetum
- Equus
- †Equus simplicidens
- †
- †
- Erginus
- †
- Eucommia[26]
- †Eucommia montana[26]
- †Eucyon
- †Eucyon davisi
- Eulima
- †
- †
- †
-
- † – or unidentified related form
-
- † – tentative report
- †
-
- †
- Eusmilia
- † – type locality for species
- Euspira
- †
- †
- †Eutrephoceras
- † – type locality for species
- †Exilia
- †
- †
- †
F[]
- †[11]
- †[11]
- Fagus
- †[2]
- – tentative report
- †
- Farrea – tentative report
- Felis
- †
- †Ficopsis
- †
- † – or unidentified comparable form
- †
- †
- †
- †
- Flabellum
- †
- †
- † – type locality for species
- †Florissantia
- †Florissantia quilchenensis[27]
- †
- † – type locality for species
- Fothergilla
- †Fraxinus[2]
- † – or unidentified comparable form
- †Fucaia – type locality for genus
- † – type locality for species
- † – type locality for species
- Fulgoraria
- †
- †
- Fulgurofusus
- †
- †
- Fusinus
- †
G[]
- Galeodea
- †
- †
- †
- †
- †
- †
- Galeruca
- Galium
- Gari
- †
- † – or unidentified related form
- †
- Gastrophysa
-
- †
- Gemmula
- †
- †
- †
- †
- †
- Geodromicus
- Georissus
- Gerris
- Ginkgo[28]
- Gleditsia[3]
- † - type locality for species[3]
- Globigerina
-
- †
- Globocassidulina
- †
- Glycymeris
- †
- †
- †
- †
- †
- Glyptostrobus
- † - type locality of genus[8]
- Gryphus
- Guttulina
- †
- Gymnusa
- Gyrineum
- †
- Gyrinus
- Gyroidina
- †
H[]
- †
- † – or unidentified comparable form
- Hapalaraea
- Haplocochlias
- †
- Helophorus
- †
- † – or unidentified comparable form
- †Hemiauchenia
- †Hemiauchenia macrocephala – or unidentified comparable form
- Hemithiris
- †
- Heptranchias
- †Heptranchias howelli
-
- † – type locality for species
- † – or unidentified related form
- Heterlimnius
- Heterosilpha
- †Heterosilpha ramosa
- – tentative report
- † – type locality for species
- † – type locality for species
- Hiatella
- †Hiatella arctica
- Hiodon
- †Hipparion
- †
- Hipponix
- †
- †Hippuris
- †Hippuris vulgaris
- Homalopoma
- †
- †
- †
- †
- † - type locality for genus[32]
- † - type locality for species[32]
- Hydrangea[2]
- † - [2]
- Hydrobius
- †Hydrobius fuscipes
- Hydrothassa
- †
- Hygrotus
- Hylurgops
- †
- †Hymenarcys
- † – type locality for species
- Hyperbaena[8]
- †[8]
- †Hypertragulus
- †Hypolagus
- †
- †
- †
- † – type locality for species
- Hypserpa[8]
I[]
- Idas
- Ilex[2]
- †Ilex opaca – or unidentified comparable form
- Ilybius
- †Ilybius quadrimaculatus
- †
- † – or unidentified comparable form
- Ips
- †
- Ischnochiton
- †
- Ischnosoma
- †
- Isochnus
- †
- – tentative report
- Isognomon
- †
- Isurus
- Itea[11]
- † – type locality for genus
- † – type locality for species
J[]
- Juglans[2]
K[]
-
- †
-
- †
- †
- †
- †
- Kellia
- †
- †Klondikia – type locality for genus
- †Klondikia whiteae – type locality for species
- Koelreuteria
- †[33]
- †Kolponomos
- †Kolponomos clallamensis
- †Kronokotherium – tentative report
- †
- † – or unidentified related form
L[]
- Laccobius
- † – or unidentified comparable form
-
- †
- Lampropeltis
- †Lampropeltis getulus
- †Langeria – type locality for genus[11]
- †Langeria magnifica – type locality for species[11]
- – or unidentified comparable form
- †
- Lapsus
- †
- † – type locality for genus
- † – type locality for species
- Latirus
- †
- Laurus
- †
- †
- †
- Leiodes
- Lemna
- Lepidochitona
- †
- †
- †
- Lepidophorus
- †
- Lepidopleurus
- †
- †
- Leptastrea – tentative report
- †
- Leptochiton
- †
- Lepyrus – or unidentified comparable form
- Leukoma
- †Libotonius[34]
- †Libotonius pearsoni[34]
- Lioligus
- Lioon
- Liothorax
- †
- Liotia
- † – type locality for species
- Liquidambar
- † – or unidentified comparable form
- †Liquidambar changii[35]
- †
- †
- †
- †
- †
- †
- †
- Loricera
- †Loricera decempunctata
- Lucinoma
- †
- †
- † – or unidentified comparable form
- †
- Lycopodium[2]
- Lygodium
- †[36]
- Lynx
- †Lynx canadensis
- †Lynx rufus – or unidentified comparable form
- Lyria
- †
M[]
- Macaranga
- †
- † – type locality for species[8]
- †Macginitiea[11]
- †
- †Macginitiea gracilis[11]
- Macoma
- †
- †
- †
- †
- †Macoma nasuta
- † – or unidentified related form
- †
- †
- †
- Macrocallista
- †
-
- †
- †
- Madracis
- † – type locality for species
- † – type locality for species
- Magdalis
- Magnolia
- †Mammut
- †Mammut americanum
- †Mammuthus
- †Mammuthus columbi
- †Mammuthus primigenius
-
- †
- Margarites
- †
- Marginella
- †
-
- †
-
- †
- †Megalonyx
- †Megalonyx leptostomus
- Megarthrus
- †Megatylopus
- † – or unidentified comparable form
- †
- †
- †[37]
- †
- †
- Melanoides
- †
- †
- † – or unidentified comparable form
- †Menyanthes
- †Merycoides
- †Mesoreodon
- †Metacarcinus
- †Metanephrocerus
- †Metanephrocerus belgardeae – type locality for species[39]
- Metasequoia
- Microlestes
- Micropeplus
- †
- †
- †
- †
- † – type locality for genus
- † – type locality for species
- †Miohippus
- † – or unidentified comparable form
- † – tentative report
- † – type locality for genus
- † – type locality for species
- † – type locality for species
- Mitra
- †
- Modiolus
- † – or unidentified related form
- †
- †
- † – or unidentified related form
- Montipora
- † – type locality for species
- Morychus
- Murex
- †
- †
- †Mursia
- †[16]
- Mustela
- † – or unidentified comparable form
- †Mya
- †Mya arenaria
- †Mya truncata
- Mycetoporus
- †
- Myriophyllum
- †Myriophyllum spicatum
- †Myrmeciites[40]
- Mytilus
- †
- †Mytilus edulis
- †
- †
- †
- † – or unidentified related form
N[]
- †
- Natica
- † – or unidentified comparable form
- †
- †
- †
- †
- †
- †
- Nebria
- †Nebria metallica
- †Nebria sahlbergi
- †
- †
- †
- † – or unidentified comparable form
-
- †
- †
- †Neoephemera
- †Neoephemera antiqua – type locality for species[41]
- Neotoma
- † – or unidentified comparable form
- † – or unidentified comparable form
- Neptunea
- †
- †
- †
- Nerita
- †
- Neverita
- †
- †
- †
- †
- † – or unidentified comparable form
-
- † – or unidentified comparable form
- †
- Notaris
- †Notaris aethiops
- †Notaris puncticollis
- Notiophilus
- †Notiophilus aquaticus
- †Notiophilus simulator
- †Notiophilus sylvaticus
- Nucella
- †
- †Nucella lamellosa
- †
- † – type locality for species
- Nucula
- †
- Nuculana
- †
- †
- †
- †
- † – or unidentified related form
- † – or unidentified comparable form
- †
- †
- †
- Nuphar[42]
- †Nuphar carlquistii[42]
- Nymphes[43]
- †Nymphes georgei – type locality for species[43]
- Nyssa[2]
- † - type locality for species[5]
O[]
- Ochthebius
- †
- † – or unidentified comparable form
- Ocypus
- Odocoileus
- Odocoileus hemionus
- Odostomia
- †Oecophylla
- † – type locality for species[44]
- Olivella
- †
- Olophrum
- †
- †
- Ondatra
- †
- Opalia
- †
- Ophiodermella
- †
- †
- †
- †
- Opisthius
- †
- Orchestes
- †
- Oreodytes – or unidentified comparable form
- Orontium
- †Orontium wolfei[45]
- Oropus
- Osmunda[46]
- †Osmunda wehrii[46]
- Ostrea
- †Ostrea lurida
- Oxytelus
P[]
- †
- †
- †Paenemarmota
- † – or unidentified comparable form
- Paguristes[47]
- †[47]
- †[17]
- †[17]
- †
- †Palaeolagus – or unidentified comparable form
- †Palaeopsychops
- †Palaeopsychops marringerae – type locality for species
- †Palaeopsychops timmi – type locality for species
- † - type locality for genus
- † - type locality for species[48]
- Paliurus
- †
-
- †
- †
- Panopea
- †Paraconcavistylon - type locality for genus[49]
- †Paraconcavistylon wehrii - type locality for species[49]
- †
- †
- †Paraenhydrocyon
- †Paraenhydrocyon josephi
- †Parailurus
- †Paramylodon
- †Paramylodon harlani
- †Parastylotermes
- †Parastylotermes washingtonensis – type locality for species[50]
-
- †
-
- †
- Patelloida
- †
-
- †
- Patrobus
- †
- †Patrobus stygicus
- Paulownia[2]
- † - type locality for species[2]
- Pecten
- †
- Pediastrum
- †Pedicularis
- Pelecomalium
- †
- Pelenomus
- †
- Pelophila
- †Pelophila borealis
- †Pentacentron Manchester et al., 2018[51]
- †Pentacentron sternhartae Manchester et al., 2018[51]
- †
- † – type locality for species
- Peromyscus
- †
- † – tentative report
- Persea
- Persicula
- Petrophyllia
- †
- † – type locality for species
- Phaedon
- †Phaedon armoraciae
- †
- †Phaedon prasinellus
- Phenacomys – or unidentified comparable form
- †Phenacomys intermedius
- Phloeosinus
- † – or unidentified comparable form
- Phloeotribus
- †Phloeotribus lecontei
- †Phoebe[11]
- †Photinia
- † – type locality for species
- Phryganea
- † – type locality for species
- Phytocrene
- † – or unidentified comparable form
- Picea[2]
- Pinus[2]
- Pitar
- †
- †
- †
- † – or unidentified comparable form
- †
- Pituophis
- †Pituophis catenifer
- Pityophthorus
- † – or unidentified comparable form
- †
- †
- † – or unidentified comparable form
-
- †
-
- †
- Plantago
- Platanus[2]
- Plateumaris
- †Plateumaris dubia
- †Plateumaris germari
- †Plateumaris neomexicana
- †Plateumaris nitida
- Platycarya
- † – or unidentified comparable form
- †Platygonus
- †
- †
- Platystethus
-
- † – or unidentified comparable form
- †Plionarctos
- † – type locality for species
- Polinices
- †
- †
- †Polinices lewisii
- †
- †
- †
- Polygonum
- †Polygonum amphibium
- Polypodium – tentative report
- †[53]
- Populus
- †
- †
- †
-
- †
-
- †
- †Potamides
- †
- †
- Potamogeton[2]
- †Potentilla
- †Priscacara
- † – type locality for species
- †
- †
- † – or unidentified related form
- †
- †
- †
- †
- †Procastoroides
- † – or unidentified comparable form
- Procyon – tentative report
- †
- †Promerycochoerus
- †
- †Proneuronema[54]
- †Proneuronema wehri - type locality for species[54]
- †Propalosoma – type locality for genus[55]
- †Propalosoma gutierrezae - type locality for species[55]
- †
- Proteinus
- †Provanna
- †
- Prunus
- †
-
- †
- Pselaptrichus
- †
- † – or unidentified comparable form
- Pseudohylesinus
- †Pseudohylesinus nebulosus
- †Pseudohylesinus sericeus – or unidentified comparable form
- Pseudolarix[citation needed]
- Pseudolarix wehrii[citation needed]
- Pseudoliva
- †
-
- † - or unidentified loosely related form
- Pteria
- †
- † – or unidentified comparable form
- Pteris
- † -type locality for species[7]
- Pterocarya[2]
- Pterostichus
- †Pterostichus adstrictus
- †Pterostichus castaneus
- † – type locality for species
- †Pterostichus pumilus
- †Pterostichus riparius
- †[56]
- †[56]
- Pteryngium
- †
- Pterynotus
- † – type locality for species
- † - type locality for genus[8]
- † – type locality for species[8]
- Puma
- Puma concolor – tentative report
- Purpura
- †
- Pycnoglypta
- †
- Pyramidella
- †
-
- † – or unidentified comparable form
Q[]
- Quedius
- Quercus[2]
- Quinqueloculina
- †
- †
- † – or unidentified comparable form
R[]
- Rangifer
- Ranina
- Ranunculus
- Rectiplanes – tentative report
- Reichenbachia
- † – type locality for genus[11]
- Retusa
- †
- †[8]
- Rhantus
- Rhus
- †Rhynchonella
- †
- Rhyncolus
- †Rhyncolus brunneus
- †[3][59]
- †Ribes
- Rimella
- †
- Rinorea – or unidentified comparable form
-
- † – or unidentified comparable form
- Rosa
- †Rotularia
- †
- Rumohra
- † - type locality for species[7]
S[]
- †[7]
- Saldula
- Salix[2]
- † – or unidentified comparable form
- † - type locality for species[10]
- Salpichlaena[7]
- †[7]
- †Salvinia
- † – or unidentified comparable form
- †Sarcobatus
- Sassafras
- †Sassafras hesperia - type locality for species[11]
- †Satherium
- †Satherium piscinarium
- Saxidomus
- †
-
- †
- Scapanus
- Scaphander
- †
- †
- Scaphinotus
- †Scaphinotus marginatus
- Schizaster
- †Schoepfia
- † - type locality for species[11]
- †Scirpus
- – tentative report
- Selaginella[2]
- Semicassis
- †
- Septifer
- †
- Serripes
- †Serripes groenlandicus
- †Shepherdia
- †Shepherdia canadensis
- †Shirleya[60]
- †Shirleya grahamae[60]
- Siderastrea
- † – or unidentified comparable form
- † – type locality for species
-
- †
- Sinum
- †
- † – or unidentified related form
- †
- Siphonalia
- †
- †
- Sitona
- †Sitsqwayk
- †Sitsqwayk cornishorum – type locality for species
- Smilax
-
- †
- Solariella
- †
- †
- †
- Solen
- †
-
- †
- †
- †
- † – or unidentified comparable form
- Sonoma
- Sorex
- † – or unidentified comparable form
- †
- †Sparganium
- Spermophilus
- † – or unidentified comparable form
- †
- Spilogale
- †
- †
- Spirotropis
- †
- Spisula
- † – or unidentified comparable form
- †
- †
- †
- Spondylus
- †
- †Squaloziphius – type locality for genus
- † – type locality for species
- Squalus
- †
- Stenoplax
- †
- Stenus
-
- † – type locality for species
- Stephostethus
- Steremnius
- Sthereus
- †
- †Sthereus quadrituberculatus
- †Stylaster
- † – type locality for species
- †
- †
-
- †
- † – tentative report
- Sveltella
- † – tentative report
- Syntomium
- † – or unidentified comparable form
- Syntomus
- †Syntomus americanus
T[]
- Tachinus
- †
- †
- †
- † – or unidentified comparable form
- †
- †
- † – type locality for genus
- † – type locality for species
- Taxidea
- †Taxidea taxus
- Taxodium
- †
- †
- †Teleoceras
- †
- †Teleoceras major – or unidentified comparable form
- Tellina
- †
- †
- †
- Tenagodus
- †
- Terebratulina
- †
- †
- †
- Teredo
- †
- † – type locality for species[8]
- Tetracentron [51]
- †Tetracentron hopkinsii Pigg et al., 2007[51]
- †[61]
- Thais
- †
- †Thalictrum
- Thamnophis
- Thanatophilus
- Thomomys
- † – or unidentified comparable form
- Thracia
- †
- †
- †
- Thyasira
- †
- †
- † – tentative report
- Tilia
- †Tilia johnsoni – type locality for species[11]
- Tipula
- † – type locality for species
- †
- †
- † – type locality for genus
- † – type locality for species
- † – type locality for species
-
- †Tournotaris bimaculatus – or unidentified comparable form
- Trechiama – or unidentified related form
- Trechus
- †Trechus chalybeus
- †
- †Trechus ovipennis – or unidentified comparable form
- Tresus
- †Tresus capax
- †Tresus nuttallii
- Trichalophus
- †Trigonictis
- †
- †Trigonictis macrodon
-
- †[16]
- Trochita
-
- †
- †
- † – type locality for species
- Trochodendron[62]
- †Trochodendron nastae[62]
- Trophon
- Trypophloeus
- †
- †Tsuga[2]
- †Tsuga heterophylla
- †Tsuga mertensiana
- †Tsukada – type locality for genus[11]
- †Tsukada davidiifolia – type locality for species[11]
- Tubastraea
- † – type locality for species
-
- †
- †
- †Turbinolia
- † – type locality for species
- † – type locality for species
- †
- †
- Turcica
- †Turcicula
- †
- †
- Turricula
- †
- †
- Turris
- †
- Turritella
- †
- †
- † – or unidentified comparable form
- †
- †
- †
- † – or unidentified comparable form
- †
- Typha
- †Typha latifolia
U[]
- †
- † – type locality for species
- Ulmus[2]
- †Ulteramus – type locality for genus[64]
- †Ulteramus republicensis – type locality for species[64]
- Upogebia
- Urosalpinx
- †
- Utricularia
-
- †
V[]
- Venericardia
- †
- †
- †
- †
- † – or unidentified comparable form
- †
- †
-
- †
- Viburnum[8]
- † – type locality for species[8]
- † - type locality for genus[8]
- † – type locality of species[8]
- Vitis
- Volsella
- †
- †
W[]
- †Wessiea[65]
- †Wessiea yakimaensis[65]
- †Willisia - type locality for genus[8]
- † - type locality for species[8]
- †
- †
- †
- †
- Woodwardia[2][65]
X[]
-
- †
Y[]
- Yoldia
- †
- † – type locality for species
- †
- †
- †
- †
- †
- †
Z[]
- Zannichellia
- †Zannichellia palustris
- †
- †
- †Zarhinocetus
- † – type locality for species
- Zelkova
- †
- † – or unidentified comparable form
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- ^ Jump up to: a b c d Manchester, S.; Pigg, K. B.; Kvaček, Z; DeVore, M. L.; Dillhoff, R. M. (2018). "Newly recognized diversity in Trochodendraceae from the Eocene of western North America". International Journal of Plant Sciences. 179 (8): 663–676. doi:10.1086/699282.
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- ^ Jump up to: a b c d Archibald, S.B.; Makarkin V.N. (2006). "Tertiary Giant Lacewings (Neuroptera: Polystechotidae): Revision and Description of New Taxa From Western North America and Denmark". Journal of Systematic Palaeontology. 4 (2): 119–155. doi:10.1017/S1477201906001817. Retrieved January 27, 2010.
- ^ Jump up to: a b Vladimir N. Makarkin; Sonja Wedmann; Thomas Weiterschan (2016). "A new genus of Hemerobiidae (Neuroptera) from Baltic amber, with a critical review of the Cenozoic Megalomus-like taxa and remarks on the wing venation variability of the family". Zootaxa. 4179 (3): 345–370. doi:10.11646/zootaxa.4179.3.2. PMID 27811679. S2CID 27743454.
- ^ Jump up to: a b Dlussky, G. M.; Rasnitsyn, A. P. (1999). "Two new species of aculeate hymenopterans (Vespida=Hymenoptera) from the Middle Eocene of the United States". Paleontological Journal. 33: 546–549.
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- ^ Borgardt, S. J.; Pigg, K. B. (1999). "Anatomical and developmental study of petrified Quercus (Fagaceae) fruits from the Middle Miocene, Yakima Canyon, Washington, USA". American Journal of Botany. 86 (3): 307–325. doi:10.2307/2656753. JSTOR 2656753. PMID 10077494.
- ^ Jump up to: a b c d Flynn, S.; DeVore, M. L.; Pigg, K. B. (2019). "Morphological Features of Sumac Leaves (Rhus, Anacardiaceae), from the Latest Early Eocene Flora of Republic, Washington". International Journal of Plant Sciences. 180 (6): 464–478. doi:10.1086/703526.
- ^ Jump up to: a b c Blokhina, N. I. (2007). "Fossil wood of the Juglandaceae: Some questions of taxonomy, evolution, and phylogeny in the family based on wood anatomy" (PDF). Paleontological Journal. 41 (11): 1040–1053. doi:10.1134/s0031030107110032.
- ^ Jump up to: a b Pigg, K. B.; DeVore, M. L. (2005). "Shirleya grahamae gen. et sp. nov.(Lythraceae), Lagerstroemia-like fruits from the middle Miocene Yakima Canyon flora, central Washington State, USA". American Journal of Botany. 92 (2): 242–251. doi:10.3732/ajb.92.2.242. PMID 21652401.
- ^ Jump up to: a b Soomro, N.; Arain, B. A.; Rajput, M. T. M. (2016). "Albizzioxylon chinjiensis sp. nov., a new fossil species of the family Leguminosae from Chinji formation salt range, Punjab Pakistan". International Journal. 11 (28): 2838–2843.
- ^ Jump up to: a b Pigg, K.B.; Wehr, W.C.; Ickert-Bond, S.M. (2001). "Trochodendron and Nordenskioldia (Trochodendraceae) from the Middle Eocene of Washington State, U.S.A". International Journal of Plant Sciences. 162 (5): 1187–1198. doi:10.1086/321927. S2CID 45399415.
- ^ Jump up to: a b Denk, T.; Dillhoff, R.M. (2005). "Ulmus leaves and fruits from the Early-Middle Eocene of northwestern North America: systematics and implications for character evolution within Ulmaceae" (PDF). Canadian Journal of Botany. 83 (12): 1663–1681. doi:10.1139/b05-122.
- ^ Jump up to: a b Archibald, S.B.; Rasnitsyn, A.P. (2015). "New early Eocene Siricomorpha (Hymenoptera: Symphyta: Pamphiliidae, Siricidae, Cephidae) from the Okanagan Highlands, western North America". The Canadian Entomologist. 148 (2): 209–228. doi:10.4039/tce.2015.55. S2CID 85743832.
- ^ Jump up to: a b c d Pigg, K.B. (2001). "Anatomically preserved Woodwardia virginica (Blechnaceae) and a new Filicalean fern from the Middle Miocene Yakima Canyon Flora of central Washington, USA". American Journal of Botany. 88 (5): 777–787. doi:10.2307/2657030. JSTOR 2657030. PMID 11353703.
Uncited entries[]
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.
Categories:
- Paleontology in Washington (state)
- Lists of the Cenozoic life of the United States by state