List of the Cenozoic life of Nevada
# List of the Cenozoic life of Nevada

This list of the Cenozoic life of Nevada contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Nevada 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
* Living Abies, or fir trees Abies
   * †Abies concoloroides
   * †Abies klamathensis
   * †Abies laticarpus
   * †Abies nevadensis
   * †Abies scherri
   * †Abies scherrii
* Acer
   * †Acer chaneyii
   * †Acer cyaneyii
   * †Acer glabroides
   * †Acer medianum
   * †Acer middlegatensis
   * †Acer negundoides
   * †Acer nevadensis
   * †Acer oregonianum
   * †Acer scottiae
   * †Acer septilobatum
   * †Acer trainii
   * †Acer tyrrelli
   * †Acer tyrrellii
* †Actiocyon
   * †Actiocyon parverratis – type locality for species
* †Aelurodon
   * †Aelurodon asthenostylus
   * †Aelurodon taxoides
* Life restoration of the Miocene camel Aepycamelus, or the long-necked camel. Heinrich Harder (1920). †Aepycamelus
   * †Aepycamelus bradyi – type locality for species
   * †Aepycamelus robustus – or unidentified comparable form
   * †Aepycamelus stocki
* †Aesculus
   * †Aesculus ashleyi – type locality for species
   * †Aesculus preglabra
* †Agriotherium
* †Agulla
   * †Agulla mineralensis – type locality for species
* Restorative model of the Miocene deer relative Aletomeryx †Aletomeryx
* †Alforjas
* †Alilepus
   * †Alilepus hibbardi
   * †Alilepus vagus
* †Allophaiomys
   * †Allophaiomys pliocaenicus
* †Alluvisorex
   * †Alluvisorex chasseae
* Alnus
   * †Alnus harneyana
   * †Alnus largei
   * †Alnus latahensis
   * †Alnus pyramidensis
   * †Alnus smithiana – type locality for species
   * †Alnus spokanensis
* †Alphagaulus
   * †Alphagaulus pristinus – or unidentified comparable form
   * †Alphagaulus vetus
* Flowers and foliage of Amelanchier, or shadbush Amelanchier
   * †Amelanchier alvordensis
   * †Amelanchier apiculata
   * †Amelanchier desatoyana
   * †Amelanchier grayi
   * †Amelanchier nevadensis – type locality for species
* †Americaphis – type locality for genus
   * †Americaphis longipes – type locality for species
* †Amorpha
   * †Amorpha oblongifolia
   * †Amorpha stenophylla
* †Anchitheriomys
* †Ansomys
   * †Ansomys nevadensis – type locality for species
* †Antecalomys
   * †Antecalomys valensis
   * †Antecalomys vasquezi – or unidentified comparable form
* †Antiacodon
   * †Antiacodon pygmaeus
* Antrozous
   * †Antrozous pallidus
* †Apatemys
   * †Apatemys bellus
* †Aphelops
   * †Aphelops malacorhinus
   * †Aphelops megalodus
* †Apis
   * †Apis nearctica – type locality for species
* Arbutus
   * †Arbutus idahoensis
   * †Arbutus matthesii
   * †Arbutus menziesii
   * †Arbutus prexalapensis
* Restoration of an Arctodus, or short-faced bear, with a human to scale †Arctodus
   * †Arctodus simus
* †Arctostaphylos
   * †Arctostaphylos verdiana
* †Astrohippus

## 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
* Fossilized skull of the Miocene-Pliocene false saber-toothed cat Barbourofelis †Barbourofelis
   * †Barbourofelis fricki
* †Bassaricyonoides – type locality for genus
   * †Bassaricyonoides stewartae – type locality for species
* Bassariscus
   * †Bassariscus antiquus
* †Bensonomys
   * †Bensonomys arizonae – or unidentified comparable form
   * †Bensonomys coffeyi – or unidentified comparable form
   * †Bensonomys lindsayi – type locality for species
* Betula
   * †Betula ashleyi
   * †Betula ashleyii
   * †Betula desatoyana
   * †Betula idahoensis
   * †Betula smithiana
   * †Betula thor
   * †Betula vera
* †Borophagus
   * †Borophagus diversidens – or unidentified comparable form
* †Bouromeryx
   * †Bouromeryx americanus
   * †Bouromeryx submilleri
* Restorative portrait of the Miocene oreodont mammal Brachycrus †Brachycrus
* †Brachyerix
   * †Brachyerix incertis
* Brachylagus
   * †Brachylagus idahoensis
* †Brachypsalis
   * †Brachypsalis pachycephalus
* †Brevimalictis – type locality for genus
   * †Brevimalictis chikasha – type locality for species
* †Bumelia
   * †Bumelia beaverana

## 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
* †Calocedrus
   * †Calocedrus masonii
* Life restoration of the Pliocene-Holocene camel Camelops †Camelops – tentative report
* Candona
* Canis
   * †Canis latrans
   * †Canis lepophagus
* †Capricamelus
* †Carpocyon
   * †Carpocyon compressus
* Carya
   * †Carya bendirei
   * †Carya ovata
* Castanopsis Castanopsis
   * †Castanopsis sonomensis
* Ceanothus
   * †Ceanothus chaneyi
   * †Ceanothus leitchii
   * †Ceanothus precuneatus
* Cedrela
   * †Cedrela trainii
* †Ceratophyllum
   * †Ceratophyllum praedemersum
* Cercis
   * †Cercis carsoniana – type locality for species
* †Cercocarpus
   * †Cercocarpus antiquus
   * †Cercocarpus eastgatensis
   * †Cercocarpus linearifolius
   * †Cercocarpus nevadensis – type locality for species
   * †Cercocarpus ovatifolius
* Chamaebatia †Chamaebatia
   * †Chamaebatia nevadensis
* †Chamaecyparis
   * †Chamaecyparis cordillerae
   * †Chamaecyparis linguaefolia
* Chara
   * †Chara verdiana
* †Chrysolepis
   * †Chrysolepis convexa
   * †Chrysolepis sonomensis
* Cnemidophorus
   * †Cnemidophorus tigris
* Comptonia
   * †Comptonia parvifolia – type locality for species
* †Copemys
   * †Copemys esmeraldensis – type locality for species
   * †Copemys loxodon
* Cornus
   * †Cornus ovalis
* Fossilized skeleton of the Miocene pronghorn-relative Cosoryx †Cosoryx
   * †Cosoryx furcatus
* Crataegus
   * †Crataegus gracilens
   * †Crataegus middlegatensis
   * †Crataegus newberryi
   * †Crataegus pacifica
* Crotalus
   * †Crotalus atrox
   * †Crotalus mitchelli
   * †Crotalus viridis
* Crotaphytus
   * †Crotaphytus collaris
* †Cupidinimus
   * †Cupidinimus cuyamensis
   * †Cupidinimus magnus
   * †Cupidinimus tertius
* Life restoration of the Pliocene-Holocene elephant relative Cuvieronius †Cuvieronius – tentative report

## 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
* †Desmathyus
   * †Desmathyus pinensis
* †Desmatippus
   * †Desmatippus avus – or unidentified comparable form
* †Diceratherium – or unidentified comparable form
* Mounted fossilized skeleton of the Miocene-Pliocene horse Dinohippus †Dinohippus
* †Diospyros
   * †Diospyros oregonianum
* Dipodomys
   * †Dipodomys gidleyi
* †Dipoides
   * †Dipoides stirtoni – or unidentified comparable form
   * †Dipoides wilsoni – or unidentified comparable form
* †Diprionomys
   * †Diprionomys minimus – type locality for species
   * †Diprionomys parvus – type locality for species
* †Domninoides
   * †Domninoides riparensis – or unidentified comparable form
* †Dromomeryx
   * †Dromomeryx borealis

## 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
* †Elkobatrachus – type locality for genus
   * †Elkobatrachus brocki – type locality for species
* †Elymys
   * †Elymys complexus
* †Eorubeta – type locality for genus
   * †Eorubeta nevadensis – type locality for species
* Mounted fossilized skeleton of the Miocene bone-crushing dog Epicyon †Epicyon
   * †Epicyon saevus
* †Equisetum
   * †Equisetum alexanderi
* Equus
   * †Equus giganteus
   * †Equus idahoensis
   * †Equus simplicidens
* †Eriosaphis – type locality for genus
   * †Eriosaphis leei – type locality for species
* †Eriosomaphis – type locality for genus
   * †Eriosomaphis jesperi – type locality for species
   * †Eriosomaphis occidentalis – type locality for species
* †Eucastor
* Life restoration of the Pleistocene bovid Euceratherium, or the shrub ox. Robert Bruce Horsfall (1913). †Euceratherium
   * †Euceratherium collinum
* †Eucyon
   * †Eucyon davisi
* Eugenia
   * †Eugenia nevadensis

## 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
* †Fouchia
   * †Fouchia elyensis
* Illustrations of the flowers and foliage of a living Fraxinus, or ash tree, with insets further detailing its anatomy †Fraxinus
   * †Fraxinus alcorni – type locality for species
   * †Fraxinus caudata
   * †Fraxinus coulteri
   * †Fraxinus desatoyana
   * †Fraxinus eastgatensis
   * †Fraxinus millsiana

## 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
* Gambelia
* †Garrya
   * †Garrya idahoensis
* †Gigantocamelus
   * †Gigantocamelus spatulus
* Glyptostrobus
   * †Glyptostrobus oregonensis
* Mounted fossilized skeleton of the Miocene-Pleistocene elephant relative Gomphotherium †Gomphotherium
   * †Gomphotherium obscurum
* Gopherus
   * †Gopherus agassizii
* †Gymnocladus
   * †Gymnocladus dayana

## 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
* †Helaletes
   * †Helaletes nanus
* Heloderma
   * Gila monster †Heloderma suspectum
* †Hemiauchenia
   * †Hemiauchenia macrocephala – or unidentified comparable form
* †Hesperhys
   * †Hesperhys vagrans – or unidentified related form
* †Hesperocamelus
   * †Hesperocamelus stylodon – type locality for species
* †Hesperogaulus
* †Hesperolagomys
   * †Hesperolagomys galbreathi – type locality for species
* †Heteromeles
   * †Heteromeles desatoyana
   * †Heteromeles sonomensis
   * †Heteromeles stenophylla – type locality for species
* †Hexobelomeryx
* Life restoration of a herd of the Miocene-Pleistocene horse Hipparion. Heinrich Harder (1920). †Hipparion
   * †Hipparion tehonense
* †Hippotherium
* †Holodiscus
   * †Holodiscus idahoensis
* Hydrangea
   * †Hydrangea bendirei
   * †Hydrangea ovatifolius
* †Hyopsodus
   * †Hyopsodus paulus
* Life restoration of the Miocene horse Hypohippus. Heinrich Harder (1920). †Hypohippus
   * †Hypohippus affinis
   * †Hypohippus nevadensis – type locality for species
   * †Hypohippus osborni – or unidentified comparable form
* †Hypolagus
   * †Hypolagus edensis
   * †Hypolagus fontinalis
   * †Hypolagus furlongi
   * †Hypolagus gidleyi
   * †Hypolagus parviplicatus – type locality for species
   * †Hypolagus ringoldensis
   * †Hypolagus tedfordi
   * †Hypolagus vetus – type locality for species
* Life restoration of the Eocene odd-toed ungulate Hyrachyus †Hyrachyus
   * †Hyrachyus modestus
* †Hystricops – tentative report

## 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
* †Ilingoceros
   * †Ilingoceros alexandrae – type locality for species
   * †Ilingoceros schizoceras – type locality for species
* Fossilized skull of the Miocene bear Indarctos †Indarctos
   * †Indarctos nevadensis
* †Ischyrocyon
* †Isectolophus
   * †Isectolophus latidens

## 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
* Juglans
   * †Juglans desatoyana
   * †Juglans nevadensis
* A living Juniperus, or juniper tree Juniperus
   * †Juniperus desatoyana
   * †Juniperus nevadensis

## 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
* †Knightomys

## 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
* †Lachnarius – type locality for genus
   * †Lachnarius miocaenicus – type locality for species
* A living Lampropeltis getula, or eastern kingsnake Lampropeltis
   * †Lampropeltis getulus
* Larix
   * †Larix cassiana
   * †Larix churchillensis
   * †Larix fernleyii – type locality for species
   * †Larix nevadensis
* Lemmiscus
   * †Lemmiscus curtatus
* †Lepoides
   * †Lepoides lepoides
* Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon †Leptocyon
   * †Leptocyon leidyi
   * †Leptocyon matthewi
   * †Leptocyon vafer
* †Leucothoe
   * †Leucothoe nevadensis
* †Limnoecus
   * †Limnoecus compressus
   * †Limnoecus tricuspis
* Limnonyx
* †Liodontia
   * †Liodontia alexandrae – type locality for species
   * †Liodontia furlongi
* †Lithocarpus
   * †Lithocarpus nevadensis
* †Lutravus
   * †Lutravus halli – type locality for species
* A living Lymnaea (larger) freshwater snail, or Melantho snail Lymnaea
* †Lyonothamnus
   * †Lyonothamnus cedrusensis
   * †Lyonothamnus parvifolius

## 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
* Fossilized cranium of the Miocene-Pleistocene saber-toothed cat Machairodus †Machairodus
* †Macrognathomys
   * †Macrognathomys nanus – type locality for species
* Mahonia
   * †Mahonia macginitiei
   * †Mahonia marginata
   * †Mahonia reticulata
   * †Mahonia reticulate
   * †Mahonia simplex
   * †Mahonia trainii
* †Mammut
   * †Mammut americanum
   * †Mammut matthewi
* Marmota
   * †Marmota korthi – type locality for species
   * †Marmota minor
* †Marshochoerus
   * †Marshochoerus socialis
* †Martinogale – tentative report
* Masticophis
   * †Masticophis flagellum
* Restoration of a Mammut americanum, or American mastodon †Mastodon
   * †Mastodon proavus
* †Mattimys
* †Megahippus
   * †Megahippus matthewi – or unidentified comparable form
   * †Megahippus mckennai
* †Megalonyx
   * †Megalonyx leptostomus
* †Megapeomys
   * †Megapeomys bobwilsoni – type locality for species
* †Megatylopus
* †Meniscomys
   * †Meniscomys hippodus
* †Merychippus
   * †Merychippus brevidontus
   * †Merychippus calamarius
   * †Merychippus californicus
   * †Merychippus close
* †Merychyus
   * †Merychyus elegans
   * †Merychyus novomexicanus
* Mounted fossilized skeleton of the Miocene pronghorn Merycodus †Merycodus
   * †Merycodus hookwayi – type locality for species
* †Metalopex
   * †Metalopex merriami
* †Metatomarctus
* †Metechinus
   * †Metechinus nevadensis – type locality for species
* †Microparamys
   * †Microparamys sambucus
* †Microtomarctus
   * †Microtomarctus conferta
* Microtus
   * †Microtus meadensis
   * †Microtus paroperarius
   * †Microtus pennsylvanicus
* Mictomys
   * †Mictomys meltoni
* †Mimomys
   * †Mimomys panacaensis – type locality for species
   * †Mimomys virginianus
* †Mioedipoda – type locality for genus
   * †Mioedipoda reisereri – type locality for species
* †Miopelodytes – type locality for genus
   * †Miopelodytes gilmorei – type locality for species
* †Miospermophilus
   * †Miospermophilus wyomingensis
* †Monosaulax
   * †Monosaulax curtus
   * †Monosaulax skinneri
* †Moropus
   * †Moropus merriami
* Mustela
   * †Mustela americana
   * †Mustela nigripes
   * †Mustela nivalis
* Myotis
* †Mystipterus
   * †Mystipterus vespertilio – type locality for species

## 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
* †Negodiaetictis – type locality for genus
   * †Negodiaetictis rugatrulleum – type locality for species
* †Nekrolagus
   * †Nekrolagus progressus
* Life restoration of a herd of Neohipparion. Robert Bruce Horsfall (1913). †Neohipparion
   * †Neohipparion leptode – type locality for species
* Neotoma
   * †Neotoma vaughani – or unidentified comparable form
* †Neotragocerus – tentative report
* †Nerterogeomys – tentative report
* †Nevaphis – type locality for genus
   * †Nevaphis nevadensis – type locality for species
* †Notharctus
   * †Notharctus tenebrosus
* Notiosorex
* †Nymphaeites
   * †Nymphaeites nevadensis

## 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
* Odocoileus
* Ondatra
   * †Ondatra idahoensis – tentative report
* †Ophiomys
   * †Ophiomys magilli
* Oreamnos
   * A living Oreamnos americanus, or mountain goat †Oreamnos americanus
* †Oregonomys
   * †Oregonomys sargenti – or unidentified comparable form
* †Oreolagus
   * †Oreolagus nevadensis – type locality for species
* Ostrya
   * †Ostrya oregoniana
* Ovis
   * †Ovis canadensis

## 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
* †Pachystima
   * †Pachystima nevadensis
* †Paciculus – or unidentified comparable form
* †Paenemarmota
   * †Paenemarmota nevadensis
* †Palaeogreenidea – type locality for genus
   * †Palaeogreenidea rittae – type locality for species
* †Pantolestes
   * †Pantolestes longieundus
* Paracamelus †Paracamelus
* †Paracosoryx
   * †Paracosoryx alticornis – or unidentified comparable form
   * †Paracosoryx loxoceros
   * †Paracosoryx nevadensis
   * †Paracosoryx wilsoni – or unidentified related form
* †Paracynarctus
   * †Paracynarctus kelloggi
* †Parahippus
   * †Parahippus pawniensis
* †Parapliohippus
   * †Parapliohippus carrizoensis – or unidentified comparable form
* †Parapliosaccomys
   * †Parapliosaccomys oregonensis
* †Paratomarctus
   * †Paratomarctus temerarius
* †Paronychomys
   * †Paronychomys lemredfieldi – or unidentified comparable form
* †Pauromys
   * †Pauromys exallos
* †Peraceras
   * †Peraceras profectum
   * †Peraceras superciliosum
* †Perognathoides
   * †Perognathoides quartus
* Perognathus
   * †Perognathus minutus – or unidentified comparable form
* A living Peromyscus, or deer mouse Peromyscus
   * †Peromyscus antiquus – type locality for species
   * †Peromyscus dentalis
* †Pewelagus
   * †Pewelagus dawsonae
* Phenacomys
   * †Phenacomys gryci – or unidentified comparable form
* Phrynosoma
   * †Phrynosoma platyrhinos
* Picea
   * †Picea lahontense
   * †Picea magna
   * †Picea sonomensis
* A living Pinus, or pine tree Pinus
   * †Pinus alvordensis
   * †Pinus balfouroides
   * †Pinus florissanti
   * †Pinus ponderosoides
   * †Pinus prelambertiana
   * †Pinus quinifolia
   * †Pinus sturgisii
   * †Pinus tiptoniana
   * †Pinus wheeleri
* Pituophis
   * †Pituophis catenifer
* Platanus
   * †Platanus bendirei
   * †Platanus dissecta
   * †Platanus paucidentata
* Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus. Charles R. Knight (1922). †Platygonus
   * †Platygonus pearcei – or unidentified comparable form
* †Pleiolama
   * †Pleiolama vera
* †Plesiosorex
   * †Plesiosorex latidens
* †Pliauchenia
* †Pliogale
   * †Pliogale furlongi – type locality for species
* †Pliohippus
   * †Pliohippus fairbanksi – or unidentified comparable form
   * †Pliohippus spectans
* †Pliosaccomys
   * †Pliosaccomys dubius – type locality for species
* †Pliotaxidea
   * †Pliotaxidea nevadensis
* †Pliozapus
   * †Pliozapus solus – type locality for species
* †Pontoniella – tentative report
* †Populas
   * †Populas eotremuloides
* Montage of photographs in spring (top left), summer (top right), autumn (bottom left), and winter (bottom right) of Populus, or poplar tree Populus
   * †Populus alexanderi
   * †Populus bonhamii
   * †Populus cedrusensis
   * †Populus eotremuloidea
   * †Populus eotremuloides
   * †Populus payettensis
   * †Populus pliotremuloides
   * †Populus sonorensis
   * †Populus subwashoensis – type locality for species
   * †Populus washoensis
* †Problastomeryx
   * †Problastomeryx primus
* †Procamelus
   * †Procamelus grandis – or unidentified comparable form
* †Prodipodomys
* †Prodipoides
   * †Prodipoides dividerus – type locality for species
   * †Prodipoides lecontei
* †Pronotolagus
   * †Pronotolagus nevadensis – type locality for species
* †Prosthennops
   * †Prosthennops niobrarensis – or unidentified comparable form
* †Protolabis
   * †Protolabis coartatus
   * †Protolabis heterodontus
* †Protomarctus
   * †Protomarctus optatus
* †Protomelanitta
   * †Protomelanitta bakeri – type locality for species
* †Protospermophilus
   * †Protospermophilus angusticeps
* Prunus
   * †Prunus chaneyi
   * †Prunus chaneyii
   * †Prunus moragensis
   * †Prunus treasheri
* Restoration of the Miocene cat Pseudaelurus †Pseudaelurus
   * †Pseudaelurus intrepidus
* †Pseudocamponotus – type locality for genus
   * †Pseudocamponotus elkoanus – type locality for species
* †Pseudotrimylus
* †Pseudotsuga
   * †Pseudotsuga sonomensis
* Pteridium
   * †Pteridium scalabazensis
* Pterocarya
   * †Pterocarya mixta

## 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 hannibali
   * †Quercus hannibalii
   * †Quercus pollardiana
   * †Quercus prelobata
   * †Quercus renoana
   * †Quercus shrevoides
   * †Quercus simulata
   * †Quercus wislizenoides

## 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
* †Rana
   * †Rana johnsoni – type locality for species
   * A living Lithobates pipiens (sometimes Rana pipiens), or northern leopard frog †Rana pipiens
* †Reithroparamys
   * †Reithroparamys delicatissimus
   * †Reithroparamys huerfanensis – or unidentified comparable form
* †Repomys
   * †Repomys gustelyi – or unidentified comparable form
   * †Repomys panacaensis
* †Rhamnus
   * †Rhamnus columbiana
   * †Rhamnus precalifornica
* Rhododendron
   * †Rhododendron gianellana
* Restoration of the Miocene-Pliocene elephant relative Rhynchotherium †Rhynchotherium
* Rhyncolus
   * †Rhyncolus kathrynae – type locality for species
* †Ribes
   * †Ribes barrowsii
   * †Ribes bonhamii
   * †Ribes galeana
   * †Ribes stanfordianum
   * †Ribes webbi
* †Robinia
   * †Robinia bisonensis
   * †Robinia californica
* Rosa
   * †Rosa harneyana
   * †Rosa schornii

## 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
* A living Salix, or willow Salix
   * †Salix boisiensis
   * †Salix churchillensis
   * †Salix desatoyana
   * †Salix inquirenda
   * †Salix knowltoni
   * †Salix laevigatoides
   * †Salix owyheeana
   * †Salix payettensis
   * †Salix pelviga
   * †Salix storeyana
   * †Salix truckeana
   * †Salix venosiuscula
   * †Salix wildcatensis
* †Satherium
   * †Satherium piscinarium
* Sauromalus
   * Chuckwalla †Sauromalus obesus
* Scapanus
* †Sciuravus
* Sciurus
   * †Sciurus olsoni – type locality for species
* †Sequoiadendron
   * †Sequoiadendron chaneyi – type locality for species
   * †Sequoiadendron chaneyii
* †Similidrepan – type locality for genus
   * †Similidrepan pulawskii – type locality for species
* †Sinocapra
   * †Sinocapra willdownsi – type locality for species
* Fossilized skeleton of the Eocene-Oligocene creodont mammal Sinopa †Sinopa
   * †Sinopa rapax
* †Sophora
   * †Sophora spokanensis
* †Sorbus
   * †Sorbus cassiana
   * †Sorbus idahoensis
   * †Sorbus macjannetii
* Sorex
* †Sparganium
   * †Sparganium nevadense
* Spea
   * †Spea alexanderi – type locality for species
* Spermophilus
   * †Spermophilus argonautus
   * †Spermophilus howelli
   * †Spermophilus wellingtonensis
* Sphaerium
* †Sphenophalos
   * †Sphenophalos nevadanus – type locality for species
* †Steneofiber
   * †Steneofiber gradatus
* †Styrax
   * †Styrax middlegatensis
* Life restoration of the Miocene deer relative Subdromomeryx. Robert Bruce Horsfall (1913). †Subdromomeryx
   * †Subdromomeryx antilopinus – or unidentified related form
* †Symphoricarpos
   * †Symphoricarpos wassukana – type locality for species

## 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
* Tamias
   * †Tamias ateles
* †Tardontia
   * †Tardontia nevadans – type locality for species
   * †Tardontia occidentale
* Taxidea
* Taxodium
   * †Taxodium oregonensis
* Restoration of the Miocene-Pliocene rhinoceros Teleoceras †Teleoceras
   * †Teleoceras fossiger
   * †Teleoceras hicksi
   * †Teleoceras major
   * †Teleoceras medicornutum
* †Tetrapassalus – tentative report
   * †Tetrapassalus mckennai – or unidentified comparable form
* †Texoceros
* Thomomys
   * †Thomomys carsonensis – type locality for species
* †Thuja
   * †Thuja dimorpha
* Fossilized skull of the Miocene oreodont mammal Ticholeptus †Ticholeptus
   * †Ticholeptus zygomaticus
* Tipula
   * †Tipula nevadensis – type locality for species
* †Tomarctus
   * †Tomarctus brevirostris
* †Torreya
   * †Torreya nancyana – type locality for species
* †Trogolemur
   * †Trogolemur myodes
* †Tsuga
   * †Tsuga mertensioides
   * †Tsuga sonomensis
* Typha
   * †Typha lesquereuxi
   * †Typha lesquereuxii

## 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
* †Uintasorex
* Ulmus
   * †Ulmus moorei
   * †Ulmus speciosa
* †Ursavus
   * †Ursavus brevirhinus – or unidentified comparable form
   * †Ursavus pawniensis
   * †Ursavus primaevus – or unidentified comparable form
* Ursus
   * †Ursus abstrusus
   * †Ursus americanus
   * A living Ursus arctos, or brown bear †Ursus arctos – 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
* A variety of modern Vaccinium species, clockwise from top right: cranberries, lingonberries, blueberries, and huckleberries †Vaccinium
   * †Vaccinium sophoroides
* †Viverravus
   * †Viverravus minutus
* Vulpes
   * †Vulpes stenognathus

## 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
* Zelkova
   * †Zelkova brownii
   * †Zelkova nevadensis – type locality for species
* Fossilized cranium of the Miocene-Pleistocene mastodon relative Zygolophodon †Zygolophodon
