List of the prehistoric life of Idaho facts for kids

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.

Precambrian

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

Paleozoic

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

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

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