List of the prehistoric life of Idaho

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

Paleozoic

Main article: List of the Paleozoic life of Idaho

Selected Paleozoic taxa of Idaho

• † Acrothyra
• † Adrianites

• 

  Assemblage of fossils of the Cambrian trilobite Agnostus

  † Agnostus
• † Amplexus
• † Ananias
• Archaeolithophyllum
• † Atrypa
• † Aulopora
• † Aviculopecten
  • † Aviculopecten kaibabensis – or unidentified comparable form
• † Avonia
• † Bathyuriscus
• † Benthamaspis
• † Caninia
• † Cardiograptus
• † Chancia
• † Chonetes
  • † Chonetes logani
• † Cleiothyridina
  • † Cleiothyridina sublamellosa

• 

  Assemblage of fossils of the Cambrian graptolite Climacograptus

  † Climacograptus
  • † Climacograptus bicornis
  • † Climacograptus innotatus
  • † Climacograptus scalaris – or unidentified comparable form
• † Composita
  • † Composita humilis
  • † Composita idahoensis – type locality for species
  • † Composita mira – or unidentified comparable form
  • † Composita sigma
  • † Composita subquadrata
  • † Composita subtilita – or unidentified comparable form
  • † Composita sulcata
• † Cyrtograptus
• † Cystodictya
• † Dictyonema
• † Didymograptus
  • † Didymograptus extensus
• † Diplograptus
• † Edmondia
• † Ehmaniella
• † Elrathia
• † Elrathina
• † Euomphalus
• † Fenestella
• † Gastrioceras – report made of unidentified related form or using admittedly obsolete nomenclature
• † Girvanella
• † Gogia
• † Goniograptus
• † Haplophrentis
• † Helcionella

• 

  Life restoration of the Permian Chimaera relative Helicoprion

  † Helicoprion
  • † Helicoprion davisii – type locality for species
• † Hintzeia
• † Hyolithes
• † Isograptus
• † Kazakhstania
• † Kootenia
• † Lingula
• † Lingulella
• † Lithostrotion
• † Margaretia
• † Martinia
• † Micromitra
• † Monograptus
  • † Monograptus convolutus
• † Morania
• † Naticopsis
• † Neospirifer
• † Niobe – tentative report
• † Obolus
• † Ogygopsis

• 

  Fossil of the Cambrian trilobite Olenoides

  † Olenoides
• † Orthotheca
• † Oryctocephalus
• † Pagetia
• Palaeoaplysina
• † Paterina
• † Pelagiella
• † Peronopsis
• † Phyllograptus
• † Plaesiomys
• † Platyceras
• † Platycrinites
• † Platystrophia
• † Poulsenia
• † Prodentalium

• 

  Restoration of the Silurian trilobite Proetus

  † Proetus
• † Protopliomerella
• † Protospongia
• † Quadratia
• † Selkirkia
• † Siphonodendron
• † Spirifer
  • † Spirifer brazerianus
• † Spiriferina
• † Strophomena

• 

  Fossil of the Devonian tabulate coral Syringopora

  † Syringopora
• † Tetragraptus
• † Tetrataxis
• † Thoracocare
• † Urotheca
• † Wilkingia
• † Worthenia – tentative report
• † Zacanthoides

Mesozoic

Main article: List of the Mesozoic life of Idaho

Selected Mesozoic taxa of Idaho

• † Albanites
• † Anaflemingites
• † Anasibirites
• † Anemia

• 

  Life restoration of two species of the Late Triassic ammonoid cephalopod Arcestes

  † Arcestes – tentative report
• † Arctomeekoceras
• † Aspenites
• Astarte
• † Aviculopecten – report made of unidentified related form or using admittedly obsolete nomenclature
  • † Aviculopecten altus – type locality for species
  • † Aviculopecten idahoensis
  • † Aviculopecten pealei – type locality for species
• † Carteria – type locality for genus
• † Ceccaisculitoides
  • † Ceccaisculitoides hammondi
• Chlamys
• † Claraia
  • † Claraia stachei
• Corbicula
• † Cryptaulax
• † Cycadeoidea

• 

  Diagram illustrating the Middle-Late Triassic ichthyosaur Cymbospondylus with an anachronistic human to scale.

  † Cymbospondylus
• † Dagnoceras
• † Dennstaedtia – tentative report
• † Enoploceras
• † Flemingites
• † Germanonautilus
• † Gervillia – report made of unidentified related form or using admittedly obsolete nomenclature
• Gleichenia
• † Gryphaea
• † Grypoceras
• † Hedenstroemia

• 

  Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve Inoceramus with a human indicating its size

  † Inoceramus
• † Inyoites
  • † Inyoites oweni
• † Lecanites
• † Lingula
• Lopha
• † Meekoceras
  • † Meekoceras gracilitatis – type locality for species
• † Megasphaeroceras
• † Naticopsis – tentative report
• † Nemacanthus
  • † Nemacanthus elegans – type locality for species
• † Neogondolella
• † Neospathodus
• † Nerinea

• 

  Fossilized shell of the Middle Jurassic ammonoid cephalopod Normannites

  † Normannites
• † Orthoceras
• Ostrea
• † Owenites
  • † Owenites koeneni – or unidentified comparable form
• † Pagiophyllum
• † Palaeophyllites – tentative report
• † Phaedrysmocheilus
• Pholadomya
  • † Pholadomya inaequiplicata
• † Plagiostoma
• † Platymya

• 

  Fossilized shell of the Carboniferous-Triassic nautiloid cephalopod Pleuronautilus

  † Pleuronautilus
• † Protocardia
• † Pseudomelania – tentative report
• † Pteria – tentative report
• † Rhaetina
• † Rhynchonella – report made of unidentified related form or using admittedly obsolete nomenclature
• † Saurichthys
• † Spiriferina
  • † Spiriferina roundyi
• † Stephanoceras
• † Tempskya

• 

  Life restoration of the Early Cretaceous Iguanodon relative Tenontosaurus

  † Tenontosaurus
• † Thamnasteria
• † Trigonia
  • † Trigonia montanaensis
• † Ussuria
• † Ussurites
• † Vex – type locality for genus
• † Worthenia
• † Wyomingites – type locality for genus
• † Xenoceltites
  • † Xenoceltites cordilleranus

• 

  Fossilized shells of the ammonoid cephalopod Xenodiscus

  † Xenodiscus

Cenozoic

Main article: List of the Cenozoic life of Idaho

Selected Cenozoic taxa of Idaho

• Abies
• Acer
• † Acritohippus
  • † Acritohippus isonesus
• † Aepycamelus
• † Aesculus
• Agelaius
  • † Agelaius phoeniceus
• † Agriotherium
• † Alforjas – tentative report
• Alnus

• 

  Life restoration of the Miocene elephant relative Amebelodon . Margret Flinsch (1932).

  † Amebelodon
• Amelanchier
• Anas
  • † Anas platyrhynchos
• Anser
  • † Anser caerulescens
• Antilocapra
  • † Antilocapra americana
• Antrozous
  • † Antrozous pallidus
• † Aphelops
• † Archaeohippus
• † Arctodus
  • † Arctodus simus
• Ardea
  • † Ardea herodias
• Baiomys
• Betula
• Bibio
• Bison
  • † Bison antiquus – or unidentified comparable form

  • 

    Mounted fossilized skeleton of the Pleistocene Bison latifrons , also known as the giant bison or long-horned bison

    † Bison latifrons
  • † Bison priscus
• Boletina
• † Bolitophila
• † Bombus
• Bonasa
  • † Bonasa umbellus
• † Bootherium
  • † Bootherium bombifrons
• † Borophagus
  • † Borophagus diversidens
  • † Borophagus hilli
  • † Borophagus pugnator

• 

  Restorative portrait of the Miocene oreodont mammal Brachycrus

  † Brachycrus
• Brachylagus
  • † Brachylagus idahoensis
• Branta
  • † Branta canadensis
• Bucephala
• † Camelops
  • † Camelops hesternus
• Camponotus
• Canis
  • † Canis dirus
  • † Canis ferox
  • † Canis latrans
  • † Canis lepophagus

• 

  A living Carya , or hickory tree

  Carya
• Castor
  • † Castor californicus
  • † Castor canadensis
• Ceanothus
• Cedrela
• Cercidiphyllum
• Cervus
  • † Cervus elaphus – or unidentified comparable form
• † Chamaecyparis
• Chen
• † Chrysolepis
• Ciconia – tentative report

  • 

    Mounted fossilized skeleton of the Pliocene-Pleistocene Ciconia maltha , also known as the asphalt stork or La Brea stork

    † Ciconia maltha
• Comptonia
• Cornus
• † Cosoryx
• Craigia
• Crataegus
• † Cunninghamia
• Cygnus
• Cynomys
• † Dennstaedtia
• † Diceratherium
• † Dipoides
• Dolichoderus
• † Domnina
• † Dromomeryx
• Dytiscus
• Elaphe
  • † Elaphe vulpina
• † Epicyon
  • † Epicyon haydeni
• † Equisetum
• Equus
  • † Equus idahoensis
  • † Equus scotti

  • 

    Fossilized skeleton of the Pliocene-Pleistocene horse Equus simplicidens , also known as the Hagerman horse or American zebra

    † Equus simplicidens
• Erethizon
  • † Erethizon dorsatum
• † Eucommia
• † Euptelea
• Falco
  • † Falco peregrinus
• Felis
• † Fraxinus
• Gallinula
  • † Gallinula chloropus
• † Garrya
• † Gigantocamelus
• Ginkgo
  • † Ginkgo adiantoides
• † Gleditsia
• Halesia
• † Hemiauchenia
  • † Hemiauchenia macrocephala
• Homo
  • † Homo sapiens

• 

  Restoration of Pliocene-Pleistocene Homotherium , or scimitar cat

  † Homotherium
  • † Homotherium serum
• Hydrangea
• † Hypohippus
• † Hypolagus
• Ilex
• Juglans
• Larix
• Lasiurus
• Lasius
• † Ledum
• Lepus
• Libocedrus

• 

  A living Limnephilus caddisfly

  † Limnephilus
• † Liriodendron
• † Lithocarpus
• Lontra
  • † Lontra canadensis
• Lynx
  • † Lynx canadensis
  • † Lynx rufus
• † Macrophya
• Mahonia
• † Mammut

  • 

    Restoration of a Mammut americanum , or American mastodon

    † Mammut americanum
• † Mammuthus
  • † Mammuthus columbi
• † Megacamelus
• † Megalonyx
  • † Megalonyx jeffersonii
  • † Megalonyx leptostomus
• † Megantereon
• Meleagris
  • † Meleagris gallopavo
• Mergus
  • † Mergus merganser
• † Merychyus
• † Mesoreodon
• Messor – tentative report
• † Metalopex
• Metasequoia
  • † Metasequoia occidentalis
• † Michenia

• 

  Fossilized skull of the Eocene-Oligocene three-toed horse Miohippus

  † Miohippus
• Mustela
• Natrix
• Neophrontops
• Neotoma
• † Niglarodon
• † Nyssa
• Odocoileus
• Ondatra
  • † Ondatra zibethicus
• † Osmunda
• Ostrya
• † Oxydactylus
• † Palaeolagus – tentative report
• Panthera
  • † Panthera leo

• 

  Fossilized skeleton of the Pliocene-Pleistocene ground sloth Paramylodon

  † Paramylodon
  • † Paramylodon harlani
• † Parthenocissus
• Pelecanus
  • † Pelecanus halieus – type locality for species
• Perognathus
• Peromyscus
• Persea
• Phalacrocorax
  • † Phalacrocorax auritus
• Phenacomys
• Phryganea
• Picea
• Pinus
• Platanus
• † Platygonus
• Populus
• Porzana
• † Potamogeton
• † Procastoroides
• Procyon
  • † Procyon lotor

• 

  Restoration of the Miocene hippopotamus-like oreodont Promerycochoerus both onshore and in the water. Robert Bruce Horsfall (1913).

  † Promerycochoerus
• † Protolabis
• Prunus
• † Pseudolarix
• † Pseudotsuga
• Pterocarya
• Puma
  • † Puma concolor
• Quercus
• Querquedula
• Rangifer
  • † Rangifer tarandus
• † Rhamnus
• Rhododendron
• Rhus

• 

  Restoration of the Miocene-Pliocene elephant relative Rhynchotherium

  † Rhynchotherium
• † Ribes
• Rosa
• Salix
• Sassafras
• † Satherium
  • † Satherium piscinarium
• Scapanus
  • † Scapanus townsendii – or unidentified related form
• Sciara
• Sequoia
  • † Sequoia affinis
• † Sequoiadendron
  • † Sequoiadendron chaneyi
• † Simocyon
• † Smilax

• 

  Life restoration of the Pleistocene-Holocene saber-tooth cat Smilodon

  † Smilodon
  • † Smilodon fatalis
• † Sophora
• † Sorbus
• Sorex
  • † Sorex palustris
• Spermophilus
• † Spiraea
• † Stegomastodon
  • † Stegomastodon mirificus
• Sthenictis
• † Symphoricarpos
• Taxidea
  • † Taxidea taxus
• Taxodium

• 

  Restoration of the Miocene-Pliocene rhinoceros Teleoceras

  † Teleoceras
• Thamnophis
• Thomomys
  • † Thomomys townsendii
• † Thuja
• † Ticholeptus
• Tilia
  • † Trigonictis macrodon
• † Tsuga
• Typha
• Ulmus
• † Ungnadia
• Ursus

• 

  A variety of modern Vaccinium species, clockwise from top right: cranberries, lingonberries, blueberries, and huckleberries

  † Vaccinium
• † Vauquelinia
• Vulpes
  • † Vulpes vulpes
• Zelkova

References

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved December 17, 2021.