List of the prehistoric life of California

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

Precambrian[]

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

Paleozoic[]

Main article: List of the Paleozoic life of California

Selected Paleozoic taxa of California[]

  • †Advenella
  • †Agathiceras
  • †Ampyx – tentative report
  • †Ampyx
  • †Apatolichas
  • Fossils of the mysterious Ediacaran organism Aspidella
    †Aspidella – tentative report
    • †Aspidella terranovica
  • †Atrypa
  • †Aviculopecten
    • †Aviculopecten occidentalis – or unidentified comparable form
  • †Bimuria
  • †Bolbolenellus
  • †Bristolia
  • †Bumastus
  • †Calymene
  • †Camarotoechia – tentative report
  • †Carolinites
  • †Chonetes
  • †Cleiothyridina
  • †Composita
    • †Composita grandis – or unidentified comparable form
    • †Composita subtilita – or unidentified comparable form
  • †Conchidium
  • †Conocardium
  • Fossil of the Devonian-Triassic arthropod trackway ichnogenus Cruziana
    †Cruziana
  • †Cyclolobus
  • †Cyclonema
  • †Cymbidium
  • †Daguinaspis
  • †Dicoelosia
  • †Didymograptus
  • †Dimeropygiella
  • †Diplichnites
  • †Encrinurus
  • †Endoceras – tentative report
  • †Euomphalus
  • †Fallotaspis
  • †Favosites
  • †Fenestella
  • †Gogia
  • †Halysites
  • †Helicoplacus
  • Life restoration of the Permian Chimaera relative Helicoprion
    †Helicoprion
    • †Helicoprion davisii
  • †Heliomeroides
  • †Hercynella
  • †Holopea
  • †Hyolithes
  • †Illaenus
  • †Ingria
  • †Isogramma
  • †Isotelus
  • †Kawina
  • Illustration of a fossilized shell of the brachiopod Kutorgina
    †Kutorgina
  • †Lingula
  • †Lingulella
  • †Lithostrotion
    • †Lithostrotion pauciradiale
  • †Lonchodomas
  • †Meristella
  • †Micromitra
  • †Murchisonia
  • †Neospirifer
  • †Nephrolenellus
  • †Nevadella
  • †Obolella
  • Illustration of a fossil of the Cambrian trilobite Olenellus
    †Olenellus
    • †Olenellus fowleri – or unidentified comparable form
  • †Oryctocephalus
    • †Oryctocephalus indicus
  • †Paladin
  • Palaeoaplysina
  • †Paleochiton
  • †Parafusulina
  • †Paraschwagerina
  • †Peachella
  • Fossilized shell of the Silurian-Middle Devonian brachiopod Pentamerus
    †Pentamerus
  • †Phillipsia
  • †Phyllograptus
  • †Plaesiomys
  • †Planolites
  • †Platyceras
  • †Poleumita
  • †Proetus
  • †Pteridinium – tentative report
  • †Raymondaspis
  • †Remopleurides
  • †Repinaella
  • Fossil of the arthropod burrow ichnogenus Rusophycus
    †Rusophycus
  • †Schwagerina
  • †Skenidioides
  • †Spirifer
    • †Spirifer brazerianus
  • †Spiriferina – tentative report
  • †Stearoceras
  • †Streptosolen
  • †Stylonema
  • †Swartpuntia – or unidentified comparable form
  • †Syringopora
  • †Thompsonella
  • †Trinodus
  • †Trocholites – tentative report
  • †Volborthella
  • †Wanneria
  • Fossilized shells of the ammonoid cephalopod Xenodiscus
    †Xenodiscus
  • †Zacanthoides

Mesozoic[]

Main article: List of the Mesozoic life of California

Selected Mesozoic taxa of California[]

  • †Abyssochrysos – tentative report
  • †Acanthoceras
  • Acanthosphaera – tentative report
  • Acesta
  • †Acrioceras
  • †Acrodus
    • †Acrodus wempliae – type locality for species
  • †Acteon
  • †Acteonella
  • Life restoration of the Late Cretaceous armored dinosaur Aletopelta
    †Aletopelta – type locality for genus
    • †Aletopelta coombsi – type locality for species
  • Amauropsis
  • †Ampullina
  • †Anagaudryceras
    • †Anagaudryceras sacya – or unidentified comparable form
  • †Anahamulina
  • †Anasibirites
    • †Anasibirites kingianus – type locality for species
  • †Anatomites
  • †Anatropites
  • †Anisoceras
  • Interior and exterior of a shell of an Anomia, or jingle shell
    †Anomia
  • †Anoplophora – tentative report
  • †Aphaea
  • †Aphrosaurus
    • †Aphrosaurus furlongi
  • Aporrhais
  • Architectonica – tentative report
  • Arctica
  • †Arctoceras
  • Argyrotheca
  • †Arnioceras
  • †Arpadites
  • Arrhoges
  • †Aspenites – type locality for genus
  • Astarte
  • †Asteroceras
  • †
  • Fossilized partial skull of the Late Cretaceous duck-billed dinosaur Augustynolophus
    †Augustynolophus
    • †Augustynolophus morrisi
  • †Axonoceras
  • †Bacchites
  • †Baculites
    • †Baculites capensis
    • †Baculites yokoyamai – or unidentified comparable form
  • Barbatia
  • †
  • †Basilemys
  • † Belleza
  • Bernaya
  • †Beudanticeras
  • †Bochianites
  • †Bostrychoceras
  • †Brancoceras
  • Bulimulus
  • Bullaria
  • Bullina
  • †Californites – type locality for genus
  • Restoration of the Late Triassic ichthyosaur Californosaurus
    †Californosaurus
  • Callianassa – tentative report
  • †Calliconites
  • †Calliomphalus – tentative report
  • Callista – tentative report
  • †Calva
  • †Calycoceras
  • Cancellaria – tentative report
  • Cantharus
  • Capulus – or unidentified comparable form
  • Cardita
  • †Cecrops
  • Cerithidea
  • Cerithium
  • †Cidarina
  • Shell and spines of a Cidaris sea urchin
    Cidaris
  • †Clinura
  • †Collignoniceras
  • †Collonia
  • Corbicula
  • Corbula
  • Cornutella
  • †Cosmonautilus
  • †Crioceratites
  • Cucullaea
  • †Cunningtoniceras
  • †Cyclothyris
  • Cylichna
  • †Cylindroteuthis
  • †Cymatoceras
  • Diagram illustrating the Middle-Late Triassic ichthyosaur Cymbospondylus with an anachronistic human to scale.
    †Cymbospondylus
    • †Cymbospondylus petrinus
  • †Daonella – tentative report
    • †Daonella dubia
  • †Dentalium
  • †Desmoceras
  • †Desmophyllites
  • †Dictyoconites
  • †Didymoceras
    • †Didymoceras hornbyense – or unidentified comparable form
  • †Dieneria – type locality for genus
  • †Discohelix – tentative report
  • †Discoscaphites
  • †Douvilleiceras
  • †Durania
  • †Echinocorys
  • †Elimia
  • Restoration of the Early Cretaceous-Eocene bony fish Enchodus, or the "saber-toothed herring"
    †Enchodus
  • †Entobia
  • †Eriphyla
  • †Eucalycoceras
  • †Euclastes
  • †Euomphaloceras
  • †Eupachydiscus
  • †Euspira
  • †Eutrephoceras
  • †Exiteloceras
  • †Exogyra
  • Fossilized shell of the Late Cretaceous ammonoid cephalopod Fagesia
    †Fagesia
  • Fissurella – tentative report
  • †Flabellina
  • †Flabellum
  • †Fresnosaurus – type locality for genus
    • †Fresnosaurus drescheri – type locality for species
  • Gastrochaena – tentative report
  • †Gaudryceras
  • †Gervillia
  • Glans – tentative report
  • †Glauconia
  • †Globigerinelloides
  • Glossus
  • Glycymeris
  • †Goricanites – type locality for genus
  • Fossil negative with skin impressions of the theropod dinosaur footprint ichnogenus Grallator
    †Grallator
  • †Gryphaea
  • †Gryponautilus
  • Gyroidina
  • Haliotis
  • †Hauericeras
  • †Hecticoceras
  • †Hedenstroemia
  • †Helena
  • †Hemicidaris
  • Heptranchias
  • Hipponix
  • †Homerites
  • †Hybodus
  • †Hydrotherosaurus – type locality for genus
    • †Hydrotherosaurus alexandrae – type locality for species
  • †Hypophylloceras
  • †Ichthyornis
  • †Ichthyosaurus
  • Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size
    †Inoceramus
    • †Inoceramus balticus
    • †Inoceramus cordiformis – or unidentified comparable form
    • †Inoceramus incertus – or unidentified comparable form
    • †Inoceramus naumanni
    • †Inoceramus steinmanni – or unidentified comparable form
    • †Inoceramus subundatus
    • †Inoceramus teshioensis – or unidentified comparable form
    • †Inoceramus turgidus – type locality for species
  • †Inyoites – type locality for genus
    • †Inyoites oweni – type locality for species
  • Isognomon
  • Fossilized shells of the Jurassic brachiopod Kallirhynchia
    †Kallirhynchia
  • †Kilianella
  • †Kossmaticeras
  • †Lacunaria
  • Leda – tentative report
  • Lima
  • †Linearis
  • †Lingula
  • Lithophaga
  • Lopha
  • †
  • †Lucina
  • †
  • †Lytoceras
    • †Lytoceras batesi
  • Macrocallista
  • †Macrocephalites
  • †Mammites – tentative report
  • †Mantelliceras
  • Margarella
  • Margarites
  • Fossilized shell of the Early-Late Cretaceous ammonoid cephalopod Mariella
    †Mariella
  • Martesia
  • †Mediaster
  • †Meekoceras
    • †Meekoceras gracilitatis
  • †Melchiorites
  • †Menuites
  • †Merriamia
  • † Mita – tentative report
  • † Mita
  • †Modiolus
  • †Morenosaurus – type locality for genus
    • †Morenosaurus stocki – type locality for species
  • †Mortoniceras
  • Musculus – or unidentified related form
  • †Myophorella
    • †Myophorella argo
    • †Myophorella dawsoni – or unidentified related form
    • †Myophorella yellowstonensis
  • †Myophoria
  • †Mytilus
  • Natica
  • †Navahopus
  • Life restoration of the Late Triassic thalattosaurs Nectosaurus (right) and Thalattosaurus
    †Nectosaurus
  • †Neithea
  • †Neocardioceras – tentative report
  • †Neohibolites
  • †Neophylloceras
    • †Neophylloceras hetonaiense
    • †Neophylloceras ramosum
  • †Nerinea
  • Nerita
  • †Nolita
  • †Nostoceras
    • †Nostoceras splendidum
  • Nucula
  • Opalia
  • †Ophiceras
  • †Opis
  • †Orthoceras
  • Shell of an Ostrea, or oyster
    Ostrea
  • †Owenites
    • †Owenites carpenteri
    • †Owenites koeneni – type locality for species
  • †Oxynautilus
  • †Oxytoma
  • †Pachydesmoceras
    • †Pachydesmoceras pachydiscoide – type locality for species
  • †Pachydiscus
    • †Pachydiscus ootacodensis
  • Panopea
  • Fossilized shell of the Late Cretaceous ammonoid cephalopod Parapuzosia with a human indicating its size
    †Parapuzosia
  • Patella – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Pecten
  • †Pedalion
  • †Pentzia
  • †Peroniceras
  • Phanerolepida
  • Pholadomya
  • †Phylloceras
  • †Phyllopachyceras
  • †Pinna
  • †Plesiotylosaurus
    • †Plesiotylosaurus crassidens
  • Plicatula
  • Life restoration of the Late Cretaceous mosasaur Plotosaurus
    †Plotosaurus
    • †Plotosaurus bennisoni
    • †Plotosaurus tuckeri
  • Polinices
  • †Polycyclus
  • †Polyptychites
  • †Polyptychoceras
  • †Posidonia
  • †Potamides – tentative report
  • †Proclydonautilus
  • †Prognathodon
    • †Prognathodon waiparaensis – or unidentified comparable form
  • Fossilized shells of the Triassic-modern marine bivalve Propeamussium
    Propeamussium
  • †Protocardia
  • †Protrachyceras
  • †Pseudomelania
  • †Pseudoperna
  • †Pseudothurmannia – tentative report
  • †Pteraichnus
  • †Pterotrigonia
  • †Puzosia
  • Pycnodonte
  • Quadrans – tentative report
  • Retusa
  • †Rhaetina – tentative report
  • †Rhynchonella
  • Rogerella
  • †Romaniceras
  • †Scalarites
  • †Scapanorhynchus
  • Scaphander
  • †Scaphites
    • †Scaphites hippocrepis – or unidentified related form
  • †Senis
  • Base of the trunk of a living Sequoia tree with a human to scale
    †Sequoia
  • Serpula
  • †Shastasaurus
    • †Shastasaurus alexandrae
    • †Shastasaurus pacificus
  • †Shastoceras
  • Siphonalia
  • †Sirenites
  • †Skolithos
  • Solariella
  • Solemya – tentative report
  • Solen
  • †Spiriferina – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Spiriferina coreyi – type locality for species
  • Spondylus
  • Squalicorax
  • †Sturia
  • † Suna
  • †Tegula
  • Tellina
  • †Tenea
  • Terebralia – tentative report
  • †Tessarolax
  • Reconstructive illustration of the skull in side (above) and top view of the Late Triassic thalattosaur Thalattosaurus. The frontmost portion of the snout is portrayed erroneously as straight; it actually had a pronounced downward curve
    †Thalattosaurus
  • Thyasira
  • †Tollia
  • †Tragodesmoceras
  • †Trigonia
  • †Trinacria
  • †Trochactaeon
  • Trophon
  • †Turrilites
    • †Turrilites acutus
    • †Turrilites costatus – or unidentified comparable form
  • Turritella
  • Volsella
  • †Worthenia
  • †Wyomingites
  • †Yezoites
  • Shell of a Yoldia limatula, or file yoldia
    Yoldia
  • †Zanola
  • †Zealandites

Cenozoic[]

Main article: List of the Cenozoic life of California

Selected Cenozoic taxa of California[]

  • †Abantis
  • A living Abies, or fir tree
    Abies
  • †Aboma
  • †Acalypha
  • Acanthina
    • †Acanthina spirata
  • Acanthocardia
  • Acar
  • Accipiter
    • †Accipiter velox
  • Acentrophryne
  • Acer
  • Acesta
  • Acipenser
    • †Acipenser medirostris – or unidentified comparable form
  • Acmaea
    • †Acmaea mitra
  • Mounted fossilized skeleton of the Miocene horse Acritohippus
    †Acritohippus
    • †Acritohippus isonesus – or unidentified comparable form
  • Acteocina
  • Acteon
  • Actinemys
    • †Actinemys marmorata
  • Admete
    • †Admete rhyssa
  • Adula
  • Aechmophorus
    • †Aechmophorus occidentalis
  • †Aelurodon
  • Life restoration of the Miocene camel Aepycamelus, or the long-necked camel. Heinrich Harder (1920).
    †Aepycamelus
    • †Aepycamelus alexandrae
  • Aequipecten
  • Aesopus
  • Aethia
  • Agaronia
  • Agelaius
  • †Agriotherium
  • †Ailanthus
  • Akera
  • Alaba
  • Alabina
  • †Albicetus
  • Alca
  • †Alcodes
  • Aleochara
  • Aletes
  • †Aletomeryx
  • †Alforjas
  • †Alisea – type locality for genus
  • †Allodelphis – type locality for genus
    • †Allodelphis pratti – type locality for species
  • Fossilized skeleton of the Miocene seal Allodesmus
    †Allodesmus
    • †Allodesmus kernensis
  • Alnus
  • †Alopecocyon – type locality for genus
  • Alopias
    • †Alopias vulpinus – or unidentified comparable form
  • Alvania
  • Amara
    • †Amara insignis
  • Amauropsis
  • Amelanchier
  • Ammospermophilus
  • †Amorpha
  • †Amphicyon
    • †Amphicyon ingens
  • Fossilized skull of the Miocene saber-toothed cat Amphimachairodus
    †Amphimachairodus
  • Amphissa
  • Amphiura
  • †Amphora
  • †Ampullina
  • Amusium
  • Anachis
  • Anadara
  • Anas
    • †Anas americana
    • †Anas clypeata
    • †Anas platyrhynchos
  • †Anchitheriomys – or unidentified comparable form
  • Fossilized mandibles of the Miocene three-toed horse Anchitherium
    †Anchitherium
  • Ancilla
  • Angulus
  • Anniella
  • Anodontia
  • Anomia
  • †Ansen
  • Anser
    • †Anser albifrons
  • Antigona
  • †Antilla
  • Antilocapra
  • Antrozous
    • †Antrozous pallidus
  • Aphelocoma
    • †Aphelocoma californica
  • Reconstructive illustration of the skeleton of the Miocene-Pleistocene hornless rhinoceros Aphelops
    †Aphelops
  • Apiotoma
  • Aplodontia
    • †Aplodontia rufa
  • Aquila
    • †Aquila chrysaetos
  • †Araeosteus
    • †Araeosteus rothi
  • Arbutus
  • Arca
  • †Arceuthobium
  • †Archaeocyon
  • †Archaeohippus
  • Architectonica
  • Archoplites
    • †Archoplites interruptus
  • Arcinella
  • Arctica – tentative report
  • Arctocephalus
  • Restoration of an Arctodus, or short-faced bear, with a human to scale
    †Arctodus
    • †Arctodus simus – type locality for species
  • †Arctostaphylos
  • Ardea
    • †Ardea herodias
  • Arenaria
    • †Arenaria melanocephala
  • Arene
  • †Argenna
  • Argobuccinum
  • Argopecten
    • Shells of Argopecten gibbus, or Atlantic calico scallops
      †Argopecten gibbus
    • †Argopecten purpuratus
  • Argyropelecus
  • †Artocarpus
  • Asio
    • †Asio wilsonianus
  • Astraea
    • †Astraea undosa
  • Astrangia
  • Astropecten
  • Astyris
  • Athene
    • †Athene cunicularia
  • Athleta
  • †Atocetus
    • †Atocetus nasalis – type locality for species
  • Atrina
  • †Aturia
  • Atys
  • Life restoration of the Miocene sperm whale Aulophyseter
    †Aulophyseter – type locality for genus
  • Austrotrophon
  • †Avipeda
  • Aythya
    • †Aythya affinis
    • †Aythya valisineria
  • Baiomys
  • Balaenoptera
    • †Balaenoptera physalus
    • †Balaenoptera ryani
  • Mounted fossilized skeleton of the Pliocene whale Balaenula
    †Balaenula
  • Balanophyllia
    • †Balanophyllia elegans
  • Balanus
    • †Balanus crenatus
    • †Balanus nubilus – or unidentified comparable form
  • Bankia
  • Barbarofusus
  • Barbatia
  • Fossilized skull of the Miocene-Pliocene false saber-toothed cat Barbourofelis
    †Barbourofelis
    • †Barbourofelis whitfordi
  • Barleeia
  • Barnea
  • †Basirepomys
  • Bassariscus
    • †Bassariscus astutus – or unidentified comparable form
  • †Bathylagus – type locality for genus
  • Bathytoma
    • †Bathytoma pacifica
  • †Batodonoides
  • Bembidion
  • †Benoistia
  • Beringraja
    • †Beringraja binoculata – or unidentified comparable form
  • Betula
  • Bison
    • †Bison antiquus
    • Mounted fossilized skeleton of the Pleistocene Bison latifrons, also known as the giant bison or long-horned bison
      †Bison latifrons
  • Bittium
    • †Bittium alternatum – or unidentified comparable form
  • Bivetopsia
  • †Boavus
  • †Bolbocara
  • Bolinichthys
  • Bonasa
    • †Bonasa umbellus
  • †Bonellitia
  • †Borophagus
    • †Borophagus diversidens
    • †Borophagus littoralis – type locality for species
    • †Borophagus parvus
    • †Borophagus secundus
  • †Borophryne
    • †Borophryne apogon
  • Brachidontes
  • Restorative portrait of the Miocene oreodont mammal Brachycrus
    †Brachycrus
  • †Brachypsalis
  • Brachyramphus
  • Branta
    • †Branta canadensis
    • †Branta nigricans – tentative report
  • Bubo
    • †Bubo virginianus
  • Buccinum
    • †Buccinum strigillatum
  • Bucephala
    • †Bucephala albeola
  • †Bucida
  • Bufo
  • Bulla
    • †Bulla gouldiana
    • †Bulla striata
  • Bullia
  • †Bumelia
  • Bursa
  • Buteo
    • †Buteo borealis
    • A living Buteo jamaicensis, or red-tailed hawk
      †Buteo jamaicensis
    • †Buteo swainsoni
  • Cadulus
  • Caecum
  • †Calicovatellus – type locality for genus
    • †Calicovatellus petrodytes – type locality for species
  • Calidris
    • †Calidris alba
  • Californiconus
    • †Californiconus californicus
  • Calliostoma
    • A living Calliostoma annulatum, or purple-ring top sea snail
      †Calliostoma annulatum
    • †Calliostoma canaliculatum
    • †Calliostoma gemmulatum
    • †Calliostoma ligatum
    • †Calliostoma supragranosum
    • †Calliostoma tricolor
  • Callista
  • Callorhinus
    • †Callorhinus ursinus
  • Calosoma
    • †Calosoma semilaeve
  • Calyptraea
  • †Calyptranthes
  • Life restoration of the Pliocene-Holocene camel Camelops
    †Camelops
    • †Camelops hesternus
    • †Camelops minidokae
  • Campanile
  • Camponotus – type locality for genus
    • †Camponotus festinatus – type locality for species
  • †Canarium
  • Cancellaria
    • †Cancellaria obesa
  • Cancer
  • Canis
    • †Canis dirus
    • †Canis edwardii
    • †Canis latrans
    • †Canis lepophagus
    • †Canis lupus
    • †Canis rufus
  • Canthon
    • †Canthon praticola
    • †Canthon simplex
  • †Cantius
  • †Capromeryx
    • Fossilized skeleton of the Pleistocene dwarf pronghorn Capromeryx
      †Capromeryx minor
  • Caracara
  • Carcharhinus
  • Carcharias
  • Carcharodon
    • †Carcharodon carcharias
    • †Carcharodon hastalis
  • Carpelimus
  • †Carpocyon
  • Carya
  • Caryophyllia
  • Cassidulina
  • Castanea
  • Castanopsis
  • Castor
    • †Castor californicus – or unidentified comparable form
  • Cathartes
    • A living Cathartes aura, or turkey vulture
      †Cathartes aura
  • Catoptrophorus
    • †Catoptrophorus semipalmatus
  • †Catostomus
  • Ceanothus
  • Cedrela
  • †Celastrus
  • Celtis
  • Cepphus
    • †Cepphus columba
  • Cercidiphyllum
  • †Cercocarpus
  • Cerithidea
    • †Cerithidea californica
  • Cerithiopsis
  • Cerithium
  • †Cernina
  • †Cerorhinca
  • Cervus
    • †Cervus elaphus
  • Cetorhinus
    • †Cetorhinus maximus
  • Life restoration of the Miocene-Pliocene whale Cetotherium
    †Cetotherium
  • †Chaenophryne
  • Chaetodipus
    • †Chaetodipus formosus – or unidentified comparable form
  • †Chalcidichthys – type locality for genus
  • Chama
  • †Chamaecyparis
  • Charadrius
    • †Charadrius semipalmatus
  • Chauliodus – type locality for genus
  • Chelonia
  • Chen
    • †Chen caerulescens
  • Life restoration of the Pleistocene-Holocene Chendytes, or Law's diving-goose
    †Chendytes – type locality for genus
    • †Chendytes lawi – type locality for species
  • Chione
    • †Chione californiensis
  • Chlamys
    • †Chlamys hastata
    • †Chlamys rubida
    • †Chlamys swifti
  • Chlorostoma
  • †Chorizanthe
  • †Chrysobalanus
  • †Chrysocyon
  • †Chrysodomus – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Chrysolepis
  • Cibicides
  • Cicindela
    • †Cicindela oregona
  • Shell and spines of a Cidaris sea urchin
    Cidaris
  • Cinnamomum
  • Cissus
  • †Citellus
  • Citharichthys
    • †Citharichthys stigmaeus
  • Clathrodrillia
  • Clathurella
  • Clavilithes
  • Clavus
  • Clementia
  • Cletocamptus
  • Shell of a Clinocardium cockle
    Clinocardium
    • †Clinocardium nuttallii
  • Cliona
  • Clupea
  • Clypeaster
  • Cnemidophorus
  • †Cocconeis
  • Cochliomyia – type locality for genus
    • †Cochliomyia macellaria – type locality for species
  • Codakia
  • Colaptes
  • †Colodon
  • Coluber
    • †Coluber constrictor
  • Colubraria
  • Columba – or unidentified comparable form
    • †Columba fasciata
  • Columbarium
  • †Conasprelloides
  • Concavus
  • Fossilized shell of a Conus cone snail
    Conus
    • †Conus fergusoni
    • †Conus regularis
    • †Conus scalaris
  • †Cophocetus – tentative report
  • Copris
  • Coragyps
  • Corbicula
  • Corbula
  • †Cormohipparion
  • Cornus
  • Coronula – tentative report
  • Corvus
    • †Corvus brachyrhynchos
    • †Corvus corax
  • †Cosoryx
  • Restoration of the Miocene palaeomerycid Cranioceras, a relative of modern deer, with anachronistic human to scale
    †Cranioceras
  • Crassadoma
    • †Crassadoma gigantea
  • Crassispira
    • †Crassispira montereyensis – or unidentified related form
  • Crassostrea
    • †Crassostrea ashleyi
    • †Crassostrea titan
  • Crataegus
  • Crawfordina
  • Crepidula
    • †Crepidula adunca
    • †Crepidula onyx
  • Crepipatella
  • †Crommium
  • Crossata
    • †Crossata ventricosa
  • Crotalus
    • A living Crotalus viridis, or prairie rattlesnake
      †Crotalus viridis
  • Crucibulum
  • †Cryptocarya
  • Cryptonatica
    • †Cryptonatica affinis
  • Cryptotermes
  • Cryptotis
  • Cucullaea
  • Culicoides
  • Cumingia
  • †Cupania
  • †Cupressus
    • †Cupressus goveniana
  • Cuspidaria
  • †Cuyamacamelus
  • Cyanocitta
    • †Cyanocitta stelleri
  • Cybocephalus
    • †Cybocephalus californicus – or unidentified comparable form
  • Cyclammina
  • Cyclocardia
  • Illustration of a living Cyclothone bristlemouth
    Cyclothone
  • Cygnus
    • †Cygnus columbianus
  • Cylichna
  • Cymatium
  • Cymatogaster
    • †Cymatogaster aggregata
  • †Cynarctoides
    • †Cynarctoides acridens
  • †Cynarctus
  • Fossilized cranium of the Miocene bear-dog Cynelos
    †Cynelos
  • Cynoscion
  • Cyperus
  • Cypraea
  • Cyrtonyx
  • Cystiscus
  • Cythara
  • Cytherea
  • †Dalbergia
  • †Daphoenodon – or unidentified comparable form
  • Mounted fossilized skeleton of the Eocene-Miocene bear-dog Daphoenus
    †Daphoenus
    • †Daphoenus ruber – type locality for species
  • Dardanus
    • †Dardanus arrosor
  • Dasyatis
  • Dasyhelea
  • †Decapterus
  • Deltochilum – tentative report
  • Dendragapus
    • †Dendragapus fuliginosus
    • †Dendragapus obscurus
  • Dendraster
  • Dendrophyllia
  • Dendryphantes
  • Dentalium
    • †Dentalium neohexagonum
  • Dermochelys – or unidentified related form
  • Deroceras
  • †Desmatippus
  • †Desmatochoerus
  • †Desmocyon
  • †Desmodium
  • Life restoration of the Oligocene-Miocene herbivorous marine mammal Desmostylus
    †Desmostylus
    • †Desmostylus hesperus – type locality for species
  • Diacria
  • †Diceratherium
  • Dichocoenia
  • †Dinohippus
  • †Dinohyus
    • †Dinohyus hollandi
  • Diodora
    • †Diodora arnoldi
    • †Diodora aspera
    • †Diodora inaequalis
  • Diomedea
  • †Diomedia
  • †Diospyros
  • Diploria
  • Dipodomys
    • †Dipodomys agilis – or unidentified comparable form
    • †Dipodomys compactus
    • †Dipodomys deserti – or unidentified comparable form
    • †Dipodomys heermanni – or unidentified comparable form
    • A living Dipodomys merriami, or Merriam's kangaroo rat
      †Dipodomys merriami
    • †Dipodomys ordii
  • †Dipoides
  • †Diprionomys
  • Discinisca
  • †Discohelix
  • †Dissacus
  • Distorsio
  • †
  • Donax
    • †Donax gouldii
  • Dosinia
    • †Dosinia dunkeri
  • †Drimys – type locality for genus
  • †Dromomeryx
  • Illustration of the fossilized jaws and teeth of the Eocene brontothere mammal Duchesneodus
    †Duchesneodus
  • †Dusisiren
  • Dytiscus
  • Echinarachnius
  • Echinorhinus
  • Eclipes – type locality for genus
  • †Ectasis – type locality for genus
  • †Ectopistes
    • †Ectopistes migratorius
  • Eleodes
    • †Eleodes osculans – type locality for species
  • Elgaria
    • †Elgaria multicarinata
  • Life restoration of two of the Eocene-Oligocene anthracothere mammal Elomeryx being menaced by fellow-anthracothere Anthracotherium
    †Elomeryx
  • †Enaliarctos
    • †Enaliarctos mealsi
    • †Enaliarctos mitchelli
  • †Enallagma – type locality for genus
  • Engelhardtia
  • Engina
  • Enhydra
    • †Enhydra lutris
    • †Enhydritherium terraenovae
  • Ensis
  • Entomobrya
  • †Eomellivora
  • Fossilized skeleton of the Eocene-Pliocene frog Eopelobates
    †Eopelobates
  • †Eosurcula
  • †Epicyon
    • †Epicyon haydeni
  • †Epihippus
  • Epinephelus
  • †Epiphragmophora
  • Epitonium
  • Eptesicus
    • †Eptesicus fuscus – or unidentified comparable form
  • †Equisetum
  • Equus
    • †
    • Restoration of the Pliocene-Holocene horse Equus scotti, or Scott's horse
      †Equus scotti
    • †Equus simplicidens
  • Eremophila
    • †Eremophila alpestris
  • Erethizon
    • †Erethizon dorsatum
  • †Eriquius
  • Eschrichtius
    • †Eschrichtius robustus – or unidentified comparable form
  • †Etringus
  • Eubalaena – or unidentified comparable form
  • †Eucastor
  • Life restoration of the Pleistocene bovid Euceratherium, or the shrub ox. Robert Bruce Horsfall (1913).
    †Euceratherium – type locality for genus
    • †Euceratherium collinum – type locality for species
  • †Eucyon
    • †Eucyon davisi
  • Euleptorhamphus
  • Eumetopias
  • †Euoplocyon
  • Euphagus
    • †Euphagus cyanocephalus
  • Euscelis
  • Eusmilia
  • Euspira
    • †Euspira lewisii
  • Eutamias
  • †Eutrephoceras
  • Euvola
  • †Evesthes
  • †Exilia
  • Falco
    • A living Falco peregrinus, or peregrine falcon
      †Falco peregrinus
    • †Falco sparverius
  • Felis
  • †Ficopsis
  • Ficus
  • Fimbria
  • Fissurella
    • †Fissurella volcano
  • Flabellipecten
  • Flabellum
  • †Forestiera
  • Forreria
    • †Forreria belcheri
  • †Fragilaria
  • Fratercula
    • A living Fratercula cirrhata, or tufted puffin
      †Fratercula cirrhata
    • †Fratercula dowi – type locality for species
  • †Fraxinus
  • Fulgoraria
  • †Fulica
    • †Fulica americana
  • Fulmarus
    • †Fulmarus glacialis
  • Fusinus
    • †Fusinus barbarensis
    • †Fusinus luteopictus
  • A living Galeocerdo cuvier, or tiger shark
    Galeocerdo
    • †Galeocerdo aduncus
  • Galeodea
  • Galeorhinus
  • †Ganolytes
  • Gari
  • Gasterosteus
    • †Gasterosteus aculeatus
  • Gastrochaena
  • Gavia
    • †Gavia arctica
    • A living Gavia immer, or common loon
      †Gavia immer
    • †Gavia pacifica
    • †Gavia stellata
  • Gemmula
  • Genota
  • Genyonemus
    • †Genyonemus lineatus
  • Geochelone
  • †Geococcyx
    • A living Geococcyx californianus, or greater roadrunner
      †Geococcyx californianus
  • Geomys
  • Geranoaetus
  • Gerrhonotus
  • †Gila – tentative report
  • †
  • Glans
  • Glaucidium
    • †Glaucidium gnoma
  • Glebocarcinus
  • Globigerina
  • Globularia
  • Glossus
  • Glycimeris
  • Glycymeris
  • Glyptoactis
  • Glyptostrobus
  • Life restoration of the Miocene walrus Gomphotaria
    †Gomphotaria – type locality for genus
    • †Gomphotaria pugnax – type locality for species
  • †Gomphotherium
  • †Goniobasis – tentative report
  • Goniopora
  • Gopherus
    • †Gopherus agassizii
  • †Gordonia
  • Granulina
  • Gymnogyps
    • †Gymnogyps californianus – type locality for species
  • Gyroidina
  • Haliaeetus
    • †Haliaeetus leucocephalus
  • †Haliaetus
  • Haminoea
  • Fossilized skull of the mesonychian mammal Harpagolestes
    †Harpagolestes – or unidentified comparable form
  • Heloderma
  • †Hemiauchenia
    • †Hemiauchenia macrocephala
  • Hemipristis
    • †Hemipristis serra
  • Hemitelia
  • Hemitoma
  • †Herpetocetus
  • Life restoration of the Eocene-Miocene mammal Herpetotherium
    †Herpetotherium
    • †Herpetotherium knighti – or unidentified comparable form
  • Hespererato
    • †Hespererato columbella
  • †Hesperocamelus – or unidentified comparable form
  • Hesperomys
  • †Hesperotestudo
  • Heterodontus
  • Hexagrammos
  • Hexanchus
  • Hiatella
    • †Hiatella arctica
  • †Hiltonius
  • Life restoration of a herd of the Miocene-Pleistocene horse Hipparion. Heinrich Harder (1920).
    †Hipparion
    • †Hipparion forcei
  • †Hippidion
  • Hipponix
  • †Hipponoe
  • †Hippotherium
  • Histrionicus
    • †Histrionicus histrionicus – tentative report
  • Hodomys
  • Homalopoma
  • Homo
    • †Homo sapiens
  • Restoration of Pliocene-Pleistocene Homotherium, or scimitar cat
    †Homotherium
    • †Homotherium serum – or unidentified comparable form
  • †Hoplophoneus
  • †Hyaenodon
    • †Hyaenodon venturae
    • †Hyaenodon vetus – type locality for species
  • Hyalina
  • Hydrangea
  • †Hydrodamalis
    • †Hydrodamalis cuestae – type locality for species
    • †Hydrodamalis gigas
  • Hydrophilus
  • Hyla
  • †Hyopsodus – or unidentified comparable form
  • †Hyperbaena
  • †Hypertragulus
  • †Hypohippus
  • †Hypolagus
  • †Hyrachyus
  • †Ilingoceros
  • Restoration of the Miocene walrus Imagotaria
    †Imagotaria – type locality for genus
    • †Imagotaria downsi – type locality for species
  • †Indarctos
  • †Inga
  • †Ioscion
  • Ischnochiton
  • †Ischyrocyon
  • †Ischyromys
  • Isognomon
  • Isurus
    • †Isurus oxyrinchus
    • †Isurus planus
  • Jaton
  • †Julus
  • †Juncus
  • Juniperus
  • Kelletia
  • Kellia
  • Life restoration of the Oligocene-Miocene dolphin Kentriodon
    †Kentriodon – type locality for genus
  • †Keteleeria
  • †Kingena
  • Kurtzia
    • †Kurtzia arteaga
  • Kurtziella
    • †Kurtziella plumbea
  • †Labyrinthus
  • Lacuna
    • †Lacuna porrecta
    • †Lacuna unifasciata
  • †Lacunaria
  • Laevicardium
  • Lagena
  • Lamna
  • Lampanyctus
  • †Lampris – type locality for genus
    • Life restoration of the Miocene opah fish Lampris zatima
      †Lampris zatima – type locality for species
  • Lampropeltis
    • †Lampropeltis getulus
  • Larus
    • †Larus californicus
    • †Larus delawarensis
    • †Larus glaucescens
    • †Larus philadelphia
  • Latirus
  • †Laytonia – type locality for genus
  • Lechytia
  • Lepeta
  • Lepidochitona
  • Lepisosteus
    • †Lepisosteus spatula – or unidentified comparable form
  • †Leptacanthichthys
    • †Leptacanthichthys gracilispinis
  • Illustration of a fossilized skull of the Oligocene-Miocene dog Leptocyon
    †Leptocyon
  • †Leptomeryx
    • †Leptopecten latiauratus
  • †Leptoreodon
  • Lepus
    • †Lepus americanus
    • †Lepus californicus
    • †Lepus callotis
  • Leukoma
    • †Leukoma staminea
  • Lima
  • Limaria
  • Top view of a fossilized skull of the Eocene creodont mammal Limnocyon
    †Limnocyon
  • †Limosa
    • †Limosa fedoa
  • Linga
  • †Linophryne
    • †Linophryne indica
  • †Liolithax – type locality for genus
  • Liquidambar
  • †Lirosceles
  • Lirularia
    • †Lirularia lirulata
  • Lissodelphis – or unidentified comparable form
  • †Lithocarpus
  • Lithophaga
  • Lithophyllum
  • Life restoration of the Paleocene-Eocene bird Lithornis
    †Lithornis – or unidentified comparable form
  • Lithothamnion
  • Littorina
    • †Littorina scutulata
  • †Lompoquia – type locality for genus
  • Lontra
    • †Lontra canadensis
  • †Lophar – type locality for genus
  • †Lophocetus
  • †Lophortyx
  • †Lora
  • Lottia
  • Lucapinella
    • †Lucapinella callomarginata
  • Lucina
  • Luidia
  • †Lycophocyon – type locality for genus
    • †Lycophocyon hutchisoni – type locality for species
  • †Lygisma – type locality for genus
  • Lygodium
  • Lynx
    • †Lynx rufus
  • Lyonsia
  • Lyria
  • Fossilized cranium of the Miocene-Pleistocene saber-toothed cat Machairodus
    †Machairodus
  • Macoma
    • †Macoma nasuta
  • Macrarene
  • Macrocallista
  • †Macrodelphinus – type locality for genus
  • Madrepora
  • Magnolia
  • Mahonia
  • Makaira
  • Malea
    • †Malea ringens
  • Mallotus
  • †Mammut
    • †Mammut americanum
    • †Mammut cosoensis
    • †Mammut matthewi
  • †Mammuthus
    • †Mammuthus columbi
    • Reconstructive illustration of the skeleton of a Mammuthus exilis, or pygmy mammoth
      †Mammuthus exilis
    • †Mammuthus primigenius
  • †Mancalla – type locality for genus
    • †Mancalla californiensis – type locality for species
  • †Mangelia
  • Margarites
    • †Margarites pupillus
  • Marginella
  • Marmota
  • Martes
  • Martesia
  • Maxwellia
    • †Maxwellia gemma
  • †Mayena – tentative report
  • †Mediochoerus
  • †Megacamelus
  • Megachasma
  • Megachile
    • †Megachile gentilis
  • †Megahippus
  • Mounted fossilized skeleton of the Miocene-Pleistocene ground sloth Megalonyx
    †Megalonyx
    • †Megalonyx jeffersonii
    • †Megalonyx wheatleyi
  • Megalops – tentative report
  • †Megapaloelodus
  • Megaptera
  • Megathura – tentative report
  • †Megatylopus
  • Melampus
  • Melanella
  • Melanitta
    • †Melanitta deglandi – tentative report
    • †Melanitta fusca
    • †Melanitta perspicillata
  • Melanoplus
    • †Melanoplus differentialis
  • Meleagris
  • †Meliosma
  • Melospiza
    • †Melospiza melodia
  • †Meniscotherium
  • Life restoration of the Miocene rhinoceros Menoceras
    †Menoceras
  • Mephitis
    • †Mephitis mephitis
  • Meretrix
  • Mergus
    • †Mergus serrator
  • Merluccius
    • †Merluccius productus
  • †Merriamoceros
  • †Merychippus
  • †Merychyus
  • Fossilized skeleton of the Miocene pronghorn Merycodus
    †Merycodus
  • Mesalia
  • †Mesocyon
  • †Mesodma – tentative report
  • †Mesohippus
  • Mesophyllum
  • †Mesoreodon
  • †Metalopex
  • †Metarhinus
  • †Metatomarctus
  • Mounted fossilized skeleton of the Miocene-Pleistocene manatee relative Metaxytherium
    †Metaxytherium
  • †Miacis
  • †Michenia
  • †Microcosmodon – or unidentified comparable form
  • Microdipodops
  • Microgadus – tentative report
  • †Microsyops
  • †Microtomarctus
  • Microtus
    • †Microtus californicus
  • †Miocryptorhopalum – type locality for genus
  • †Miocyon
  • †Miohippus
  • †Miomancalla
  • †Miotapirus
  • †Miotylopus
  • Restoration of the Pliocene-Pleistocene Miracinonyx, or American cheetah
    †Miracinonyx
    • †Miracinonyx studeri – tentative report
  • Mirounga
    • †Mirounga angustirostris – or unidentified comparable form
  • Mitra
    • †Mitra fultoni
    • †Mitra idae
  • Mitrella
    • †Mitrella carinata
  • †Mixocetus – type locality for genus
  • Modiolus
    • †Modiolus capax – or unidentified comparable form
  • Modulus
  • Monoplex
    • †Monoplex amictus
  • †Monosaulax
  • Montipora
  • Mopalia
    • †Mopalia ciliata
  • Life restoration of the Miocene chalicothere mammal Moropus threatening a pair of the bear-dog Daphoenodon. Jay Matternes (1964).
    †Moropus
  • Morula
  • Morus – or unidentified comparable form
  • Morus
  • Mulinia
  • Murex – or unidentified related form
  • Musculus
  • Mustela
    • †Mustela frenata
  • †Mya
    • †Mya truncata
  • Myctophum
  • Myliobatis
    • †Myliobatis californicus
  • Fossilized skeleton of the Pliocene-Holocene peccary Mylohyus
    †Mylohyus
    • †Mylohyus fossilis
  • †Mylopharodon
    • †Mylopharodon conocephalus
  • Myodes
  • Mytilus
    • †Mytilus californianus
    • †Mytilus edulis
  • Myurella
  • †Nannippus
  • †Nannocetus – type locality for genus
  • †Nanotragulus
  • Narona
    • †Narona clavatula
  • Nassa
  • A living Nassarius, or nassa mud snail
    Nassarius
    • †Nassarius fossatus
  • Natica
  • Naticarius
  • †Navahoceros
  • Nectandra
  • Negaprion
  • †Neobernaya
    • †Neobernaya spadicea
  • †Neogyps
    • †Neogyps errans
  • †Neohipparion
  • †Neoliotomus – or unidentified comparable form
  • †Neolitsea
  • Mounted fossilized skeleton of the Miocene aquatic desmostylian mammal Neoparadoxia
    †Neoparadoxia – type locality for genus
    • †Neoparadoxia cecilialina – type locality for species
    • †Neoparadoxia repenningi – type locality for species
  • Neophrontops
    • †Neophrontops americanus
  • †Neoplagiaulax
  • Neotamias
    • †Neotamias senex
  • †Neotherium – type locality for genus
  • Neotoma
    • †Neotoma cinerea – type locality for species
    • †Neotoma fuscipes
    • †Neotoma lepida
  • Neptunea
  • Nerita
  • Neritina
  • †Nerium
  • Neverita
  • Nicrophorus
    • †Nicrophorus guttula
    • †Nicrophorus marginatus – type locality for species
    • †Nicrophorus nigrita
  • †Nimravides
  • Illustration of the fossilized skull of the Oligocene false saber-toothed cat Nimravus
    †Nimravus
  • Niso – tentative report
  • †Nitzschia
  • Nodipecten
  • Norrisia
    • †Norrisia norrisi
  • †Nothrotheriops
  • †Nothrotherium
  • Notiosorex
    • †Notiosorex crawfordi
  • Notoacmea
  • Illustration of a living Notorynchus cow shark
    Notorhynchus
  • †Nototamias
  • Nucella
    • †Nucella emarginata
    • †Nucella lamellosa
    • †Nucella lima
  • Nucula
  • Numenius
    • A living Numenius phaeopus, or whimbrel
      †Numenius phaeopus
  • Nuttallia
  • †Nyssa
  • Oceanodroma
    • †Oceanodroma furcata
    • †Oceanodroma homochroa
  • Ocenebra
  • Ocotea
  • †Ocystias
  • †Odaxosaurus
  • Odobenus
    • †Odobenus rosmarus
  • Mounted fossilized skeleton of the Pleistocene Odocoileus lucasi, or American mountain deer
    Odocoileus
    • †Odocoileus hemionus
    • †Odocoileus virginianus – or unidentified comparable form
  • Odontaspis
    • †Odontaspis ferox
  • Odostomia
    • †Odostomia avellana
    • †Odostomia beringi – or unidentified comparable form
    • †Odostomia californica – or unidentified comparable form
    • †Odostomia callimene – or unidentified related form
    • †Odostomia columbiana – or unidentified comparable form
    • Illustration of the shell of an Odostomia donilla pyram shell sea snail
      †Odostomia donilla
    • †Odostomia eugena
    • †Odostomia farallonensis
    • †Odostomia fetella
    • †Odostomia gravida
    • †Odostomia helena
    • †Odostomia minutissima – or unidentified comparable form
    • †Odostomia nemo
    • †Odostomia nota
    • †Odostomia stephensae
    • †Odostomia tenuisculpta – or unidentified comparable form
  • Oenopota
    • †Oenopota tabulata
  • Oliva
    • †Oliva spicata
  • Olivella
    • †Olivella baetica
    • †Olivella biplicata
    • †Olivella gracilis
    • †Olivella pedroana
  • Oncorhynchus
  • Ondatra
  • Oneirodes
  • Onthophagus
  • Onychomys
    • †Onychomys torridus
  • Ophiodermella
    • †Ophiodermella inermis
  • †Opisthonema
  • Oreamnos
    • †Oreamnos americanus
  • Oreortyx
    • †Oreortyx picta
  • Orthemis
    • †Orthemis ferruginea
  • Orthodon
  • †Osbornodon
  • Life restoration of the Miocene pseudo-toothed bird Osteodontornis
    †Osteodontornis – type locality for genus
    • †Osteodontornis orri – type locality for species
  • Ostrea
    • †Ostrea conchaphila
    • †Ostrea lurida
  • †Otodus
    • †Otodus megalodon
  • Otus
    • †Otus asio
  • Ovibos
    • †Ovibos moschatus
  • Ovis
    • †Ovis canadensis
  • †Oxyrhina
  • †Oxyura
    • †Oxyura jamaicensis
  • †Ozymandias – type locality for genus
  • †Pacifichelys
  • †Palaeolagus
  • Restoration of the Miocene aquatic desmostylian mammal Paleoparadoxia
    †Paleoparadoxia
    • †Paleoparadoxia tabatai
  • Pandora
  • Panopea
  • Panthera
    • †Panthera leo
    • †Panthera onca – or unidentified comparable form
  • †Parabalaenoptera – type locality for genus
    • †Parabalaenoptera baulinensis – type locality for species
  • †Paracynarctus
  • †Parahippus
  • Paralichthys – type locality for genus
  • Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon
    †Paramylodon
    • †Paramylodon harlani
  • †Paramys
  • †Parapontoporia
    • †Parapontoporia sternbergi – type locality for species
  • †Parastylotermes
    • †Parastylotermes calico – type locality for species
    • †Parastylotermes frazieri – type locality for species
  • †Paratomarctus
  • †Parietobalaena
  • †Paronychomys
  • †Parribacus
  • Patelloida
  • Pecten
  • †Pedalion
  • †Pediomeryx
  • †Pelagiarctos – type locality for genus
    • †Pelagiarctos thomasi – type locality for species
  • Reconstructive illustration of a fossilized skull of the Oligocene-Pleistocene pseudo-toothed bird Pelagornis, with close-up insets of its pseudo-teeth
    †Pelagornis
  • Pelecanus
    • †Pelecanus erythrorhynchus – or unidentified comparable form
    • †Pelecanus occidentalis
  • †Peltosaurus
  • †Peraceras
  • Perognathus
  • Peromyscus
    • †Peromyscus truei – or unidentified comparable form
  • †
  • Persea
  • Persististrombus
  • Petricola
  • Phalacrocorax
    • †Phalacrocorax auritus
    • †Phalacrocorax pelagicus
    • †Phalacrocorax penicillatus
  • Phalaropus
    • †Phalaropus fulicaria
    • †Phalaropus lobatus
  • †Phanaeus
  • Illustration of a fossilized skull in multiple views of the Oligocene-Miocene bone-crushing dog Phlaocyon
    †Phlaocyon
  • Phloeodes
    • †Phloeodes diabolicus
    • †Phloeodes plicatus
  • †Phoberogale
  • Phoca
    • †Phoca vitulina – or unidentified comparable form
  • Phocoena – or unidentified comparable form
  • †Phoebastria
    • †Phoebastria albatrus – type locality for species
  • Phoenicopterus – or unidentified comparable form
  • Pholadidea
  • Pholadomya
  • Pholas
  • Phos
  • †Photinia
  • A living Phrynosoma, or horned lizard
    Phrynosoma
  • Phyllonotus
  • Physa
  • Picea
  • Pinna
  • Pinus
    • †Pinus muricata
    • †Pinus radiata
  • Piranga
    • †Piranga ludoviciana
  • Pitar
  • Pituophis
    • †Pituophis melanoleucus
  • Pitymys
  • Platanus
  • Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus. Charles R. Knight (1922).
    †Platygonus
  • Platynus
  • Plegadis
    • †Plegadis chihi
  • †Pleiolama
  • †Plesiadapis
  • †Plesiogulo
  • Pleurofusia
  • †Pleuroncodes
  • †Pleuronichthys
  • †Pliauchenia
  • †Pliocyon
  • †Pliohippus
  • †Pliometanastes
  • †Plionarctos
  • Life restoration of the Miocene walrus Pliopedia
    †Pliopedia – type locality for genus
    • †Pliopedia pacifica – type locality for species
  • †Plithocyon
  • Pluvialis
    • †Pluvialis squatarola
  • †Poabromylus – tentative report
  • Pocillopora
  • Podiceps
    • †Podiceps auritus
  • Podilymbus
    • †Podilymbus podiceps
  • Pododesmus
    • †Pododesmus macrochisma
  • †Poebrodon
    • †Poebrodon californicus – type locality for species
  • Illustration of a fossilized skull of the Oligocene false faber-toothed cat Pogonodon
    †Pogonodon
  • Polinices
    • †Polinices lewisii
  • Polydora
  • Polymesoda
  • Polystira
  • †Pongamia
  • †Pontolis – or unidentified comparable form
    • †Pontolis magnus
  • Populus
  • Porichthys
    • A modern Porichthys notatus, or plainfin midshipman
      †Porichthys notatus
  • Porites
  • †Portunites
  • †Potamides
  • †Praemancalla – type locality for genus
  • Priene
  • Prionace
    • †Prionace glauca
  • †Pristichampsus
  • Pristiophorus
  • †Procamelus
  • †Procynodictis
  • Procyon
    • †Procyon lotor
  • †Promartes
  • †Protanthias – type locality for genus
  • †Protepicyon
  • Life restoration of the Eocene brontothere mammal Protitanops
    †Protitanops
  • †Protohepialus – type locality for genus
    • †Protohepialus comstocki – type locality for species
  • †Protolabis
  • †Protomarctus
  • †Protostrix
  • Protothaca
  • †Protylopus
  • Prunus
  • Hypothetical restoration of the Oligocene-Pliocene sea turtle Psephophorus
    †Psephophorus
  • †Pseudaelurus
  • Pseudochama
  • Pseudoliva
  • Pseudomelatoma
    • †Pseudomelatoma penicillata
  • †Pseudoseriola – type locality for genus
  • †Pseudotsuga
  • Pteria
  • †Pteroplatea
  • Pteropurpura
    • †Pteropurpura festiva
  • Pterostichus
  • Pterynotus
  • Illustration of a fossilized skull of the Paleocene multituberculate mammal Ptilodus
    †Ptilodus
  • Ptinus
  • Ptychoramphus
    • †Ptychoramphus aleuticus
  • Puffinus
    • †Puffinus griseus
    • †Puffinus opisthomelas
    • †Puffinus tenuirostris
  • †Puma
    • †Puma concolor – type locality for species
  • Puncturella
    • †Puncturella galeata
  • Purpura
  • Pusula
  • Assemblage of fossilized shells of the Cretaceous-Pleistocene oyster Pycnodonte
    Pycnodonte
  • Pyramidella
    • †Pyramidella adamsi – or unidentified comparable form
  • Pyrene
  • Quercus
  • Raja
  • Rallus
    • †Rallus limicola
  • †Ramoceros
  • †Raja
  • Rallus
    • †Rallus limicola
  • Life restoration of the Miocene-Pliocene pronghorn Ramoceros and Cosoryx. Robert Bruce Horsfall (1913).
    †Ramoceros
  • †Rana
  • Rapana
  • Recurvirostra
  • Reithrodontomys
  • †Repomys
  • Reticulitermes
  • Reticutriton
  • Retusa
  • †Rhabdammina
  • †Rhamnidium
  • †Rhamnus
  • Rhus
  • Restoration of the Miocene-Pliocene elephant relative Rhynchotherium
    †Rhynchotherium
  • †Rhythmias
  • Rimella
  • Rissa
    • †Rissa tridactyla
  • Rissoina
  • †Robinia
  • †Rotularia
  • Sabal
  • Sagmatias
  • Salix
  • †Saniwa
    • †Saniwa ensidens – type locality for species
  • †Sapindus
  • †Sarda
  • Sassia
  • Saxidomus
    • †Saxidomus gigantea
    • †Saxidomus nuttalli
  • Fossilized teeth of the Neogene sperm whale Scaldicetus
    †Scaldicetus
  • Scapanus
    • †Scapanus latimanus
  • Scaphander
  • Scapharca
  • Scaphinotus
    • †Scaphinotus interruptus
  • †Scaphohippus
  • Sceloporus
    • †Sceloporus occidentalis
  • †Schistomerus – type locality for genus
    • †Schistomerus californense – type locality for species
  • Schizaster
  • Sciurus
  • Scomber
  • †Scomberesox
  • Illustration of a living Scopelogadus ridgehead
    Scopelogadus
  • †Scutella
  • Scyliorhinus
  • †Scymnorhinus
  • †Sebastodes
  • Seila
  • Semele – tentative report
  • Semele
  • Semicassis
  • Semicossyphus
  • Fossilized skull of the Pliocene porpoise Semirostrum
    †Semirostrum – type locality for genus
    • †Semirostrum ceruttii – type locality for species
  • †Sequoiadendron
  • †Serbelodon
  • Serica
  • Seriola
  • Seriphus
    • †Seriphus politus
  • Serpula
  • Serpulorbis
  • Restoration of two species of the Oligocene oreodont mammal genus Sespia
    †Sespia
  • Siderastrea
  • Sigmodon
  • Sigmoilina – tentative report
  • Siliqua
    • †Siliqua patula – or unidentified related form
  • Sinum
  • Siphonalia
  • Skenea
    • †Skenea californica
  • †Smilax
  • Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon
    †Smilodon
    • †Smilodon fatalis
    • †Smilodon gracilis
  • †Smilodonichthys
  • Solariella
    • †Solariella peramabilis
  • Solemya
  • Solen
  • Solenosteira
  • Sorex
  • Spermophilus
    • A living Otospermophilus beecheyi (formerly Spermophilus beecheyi), or California ground squirrel
      †Spermophilus beecheyi
    • †Spermophilus lateralis
  • Sphyrna
  • Spilogale
    • †Spilogale putorius
  • Spirotropis
  • Spisula
  • Spondylus
  • Squalus
  • Squatina
    • †Squatina californica – or unidentified comparable form
  • Squilla
  • Mounted fossilized skeleton of the Pliocene-Pleistocene elephant relative Stegomastodon
    †Stegomastodon
    • †Stegomastodon mirificus – or unidentified comparable form
  • Stenella
  • †Stenomylus
    • †Stenomylus hitchcocki – or unidentified comparable form
  • Stenoplax
    • †Stenoplax conspicua
  • Stercorarius
  • Sterna
  • †Sternbergia – type locality for genus
  • Sthenictis
  • †Stictocarbo
  • Mounted fossilized skeleton of the fossil pronghorn Stockoceros
    †Stockoceros – or unidentified comparable form
  • Stomias
  • Stramonita
    • †Stramonita biserialis
    • †Stramonita canaliculata
  • †Striatolamia
  • Strioterebrum
  • Strombiformis
  • Strombus
    • †Strombus galeatus
    • †Strombus gracilior
  • Strongylocentrotus
  • †Strongylodon
  • Sturnella
  • Mounted fossilized skeleton of the Eocene-Oligocene tortoise Stylemys
    †Stylemys
  • Subcancilla
    • †Subcancilla sulcata
  • †Subhyracodon
  • Succinea
  • Sula
  • †Syllomus – or unidentified comparable form
  • Sylvilagus
    • †Sylvilagus audubonii
    • †Sylvilagus bachmani
    • †Sylvilagus floridanus
  • A living Syngnathus pipefish
    Syngnathus
  • Synthliboramphus
    • †Synthliboramphus antiquus
    • †Synthliboramphus hypoleucus
  • †Tabernaemontana
  • Tadorna
    • †Tadorna tadorna
  • Tagelus
    • †Tagelus californianus
    • †Tagelus subteres
  • Tamias
  • Tamiasciurus
    • †Tamiasciurus hudsonicus
  • †Tanymykter
  • A living Tapirus, or tapir
    Tapirus
    • †Tapirus californicus
    • †Tapirus merriami – type locality for species
  • †Tapocyon
  • Taranis
  • Taricha
  • Taxidea
    • †Taxidea taxus
  • Tayassu
  • Tegula
    • †Tegula aureotincta
    • †Tegula eiseni
    • †Tegula ligulata
  • Restoration of the Miocene-Pliocene rhinoceros Teleoceras
    †Teleoceras
  • Tellina
  • †Temnocyon
  • Tenagodus
  • †Teratornis
    • †Teratornis merriami
  • Terebellum
  • Terebra
    • †Terebra pedroana
    • †Terebra protexta
  • Terebratula
  • Teredo
  • Terminalia
  • †Tessarolax – tentative report
  • Testudo
  • †Tetraclaenodon
  • †Tetrameryx
  • Thais
  • Life restoration of the Miocene fur seal Thalassoleon
    †Thalassoleon
    • †Thalassoleon macnallyae – type locality for species
    • †Thalassoleon mexicanus
  • †Thamnasteria
  • Thamnophis
  • Thomomys
    • †Thomomys bottae
    • †Thomomys monticola
  • Thracia
  • Thunnus – type locality for genus
  • Thyasira
  • †Thyrsites
  • †Ticholeptus
  • Timoclea
  • Mounted fossilized skeleton of the Miocene-Pleistocene camel Titanotylopus
    †Titanotylopus
  • Tivela
    • †Tivela stultorum
  • †Tomarctus
    • †Tomarctus brevirostris
    • †Tomarctus hippophaga
  • Totanus
  • †Toxicodendron
  • Toxopneustes
  • Toxostoma
    • †Toxostoma redivivum
  • Trachycardium
  • A living Tremarctos, or spectacled bear
    Tremarctos
    • †Tremarctos floridanus
  • Tresus
    • †Tresus capax
    • †Tresus nuttallii
  • Triakis – tentative report
  • Trichotropis
  • Tricolia
    • †Tricolia pulloides
    • †Trigonictis macrodon
  • Trionyx
  • Triphora
  • Triplofusus
    • †Triplofusus princeps
  • Trochita
  • †Trogosus
  • Trophon
  • Tucetona
  • †Tunita – type locality for genus
  • Turbonilla
  • Shell of a Turcica sea snail
    Turcica
  • Turdus
  • †Turio
  • Turricula
  • Turris
  • Turritella
  • Turritriton
    • †Turritriton gibbosus
  • Tursiops – or unidentified comparable form
  • Typha
  • Typhis
  • Tyto
    • †Tyto alba
  • Uca
  • Life restoration of the Eocene mammal Uintatherium
    †Uintatherium
  • Ulmus
  • †Umbellularia
  • Uria
    • †Uria aalge
  • †Urobatis
    • †Urobatis halleri
  • †Urocitellus
    • †Urocitellus beldingi
  • Urocyon
    • †Urocyon cinereoargenteus
  • Urolophus
    • †Urolophus halleri – tentative report
  • Ursus
    • A living Ursus americanus, or American black bear
      †Ursus americanus
  • †Ustatochoerus
  • Uta
    • †Uta stansburiana
  • †Valenictus – type locality for genus
    • †Valenictus chulavistensis – type locality for species
    • †Valenictus imperialensis – type locality for species
  • †Vanderhoofius
  • Vasum
  • †Vauquelinia
  • †Velates
  • Velutina
    • †Velutina velutina
  • Venericardia
  • Venus
  • Vermicularia
  • Veromessor
  • Leaves and fruit of a living Viburnum.
    †Viburnum
  • †Vireo
  • Vitrinella – tentative report
  • Volsella
  • Voluta
  • Volutopsius
  • †Vouapa
  • Vulpes
    • †Vulpes cascadensis
    • †Vulpes velox
  • Williamia
  • †Wodnika
  • Fossilized shell of the Late Cretaceous-modern carrier shell sea snail Xenophora
    Xenophora
  • †Xyne – type locality for genus
  • Yoldia
  • †Yumaceras – tentative report
  • †Zachrysia
  • Zalophus
    • †Zalophus californianus
  • †Zamites
  • †Zaphleges
    • †Zaphleges longurio
  • †Zapteryx
  • †Zarhinocetus
    • †Zarhinocetus errabundus – type locality for species
  • Zelkova
  • Zenaida
    • †Zenaida macroura
  • Zonotrichia
    • †Zonotrichia leucophrys
  • Known material diagram depicting the Miocene-Pleistocene mastodon relative Zygolophodon with a human to scale
    †Zygolophodon

References[]

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017. {{cite web}}: |author= has generic name (help)
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