There are 3 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

167

Youngest Fossil Listed

5.33 Ma (Miocene)

Oldest Fossil Listed

260 Ma (Permian)

Stratigraphic Units

Unit	No. Occurrences	Age
Phosphoria - Retort	4	259.9 - 252.17 Ma (Permian)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Nuculopsis genus	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : *Nuculopsis*	259.9 - 252.17 Ma Permian
Astartella genus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : *Astartella*	259.9 - 252.17 Ma Permian
Platanus genus	Plantae : Tracheophyta : Magnoliopsida : Proteales : Platanaceae : *Platanus*	33.9 - 5.333 Ma Cenozoic
Fagopsis longifolia species	Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : Fagopsis : *Fagopsis longifolia*	23.03 - 5.333 Ma Miocene
Smilax genus	Plantae : Tracheophyta : Liliopsida : Liliales : Smilacaceae : *Smilax*	23.03 - 5.333 Ma Miocene
Salix genus	Plantae : Tracheophyta : Magnoliopsida : Malpighiales : Salicaceae : *Salix*	33.9 - 5.333 Ma Cenozoic
Carya genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Juglandaceae : *Carya*	23.03 - 5.333 Ma Miocene
Alnus genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : *Alnus*	33.9 - 5.333 Ma Cenozoic
Quercus genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : *Quercus*	33.9 - 5.333 Ma Cenozoic
Cercidiphyllum genus	Plantae : Tracheophyta : Magnoliopsida : Saxifragales : Cercidiphyllaceae : *Cercidiphyllum*	33.9 - 5.333 Ma Cenozoic
Vauquelinia genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rosaceae : *Vauquelinia*	23.03 - 5.333 Ma Miocene
Dalbergia genus	Plantae : Tracheophyta : Magnoliopsida : Fabales : Fabaceae : *Dalbergia*	23.03 - 5.333 Ma Miocene
Ailanthus genus	Plantae : Tracheophyta : Magnoliopsida : Sapindales : Simaroubaceae : *Ailanthus*	23.03 - 5.333 Ma Miocene
Cedrela genus	Plantae : Tracheophyta : Magnoliopsida : Sapindales : Meliaceae : *Cedrela*	33.9 - 5.333 Ma Cenozoic
Celastrus genus	Plantae : Tracheophyta : Magnoliopsida : Celastrales : Celastraceae : *Celastrus*	23.03 - 5.333 Ma Miocene
Acer genus	Plantae : Tracheophyta : Magnoliopsida : Sapindales : Sapindaceae : *Acer*	33.9 - 5.333 Ma Cenozoic
Cornus genus	Plantae : Tracheophyta : Magnoliopsida : Cornales : Cornaceae : *Cornus*	23.03 - 5.333 Ma Miocene
Diospyros genus	Plantae : Tracheophyta : Magnoliopsida : Ericales : Ebenaceae : *Diospyros*	23.03 - 5.333 Ma Miocene
Fraxinus genus	Plantae : Tracheophyta : Magnoliopsida : Lamiales : Oleaceae : *Fraxinus*	23.03 - 5.333 Ma Miocene
Pinus genus	Plantae : Tracheophyta : Pinopsida : Pinales : Pinaceae : *Pinus*	33.9 - 5.333 Ma Cenozoic
Taxodium genus	Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : *Taxodium*	33.9 - 5.333 Ma Cenozoic
Abies genus	Plantae : Tracheophyta : Pinopsida : Pinales : Pinaceae : *Abies*	33.9 - 5.333 Ma Cenozoic
Carpinus genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : *Carpinus*	23.03 - 5.333 Ma Miocene
Sequoia genus	Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : *Sequoia*	33.9 - 5.333 Ma Cenozoic
Osmunda genus	Plantae : Tracheophyta : Polypodiopsida : Osmundales : Osmundaceae : *Osmunda*	23.03 - 5.333 Ma Miocene
Glyptostrobus genus	Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : *Glyptostrobus*	23.03 - 5.333 Ma Miocene
Metasequoia occidentalis species	Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : Metasequoia : *Metasequoia occidentalis*	23.03 - 5.333 Ma Miocene
Betula genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : *Betula*	33.9 - 5.333 Ma Cenozoic
Nelumbo genus	Plantae : Tracheophyta : Magnoliopsida : Proteales : Nelumbonaceae : *Nelumbo*	23.03 - 5.333 Ma Miocene
Cocculus genus	Plantae : Tracheophyta : Magnoliopsida : Ranunculales : Menispermaceae : *Cocculus*	23.03 - 5.333 Ma Miocene
Phragmites genus	Plantae : Tracheophyta : Liliopsida : Poales : Poaceae : *Phragmites*	23.03 - 5.333 Ma Miocene
Myrica genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Myricaceae : *Myrica*	23.03 - 5.333 Ma Miocene
Paliurus genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rhamnaceae : *Paliurus*	33.9 - 5.333 Ma Cenozoic
Sapindus genus	Plantae : Tracheophyta : Magnoliopsida : Sapindales : Sapindaceae : *Sapindus*	23.03 - 5.333 Ma Miocene
Populus genus	Plantae : Tracheophyta : Magnoliopsida : Malpighiales : Salicaceae : *Populus*	23.03 - 5.333 Ma Miocene
Populus balsamoides species	Plantae : Tracheophyta : Magnoliopsida : Malpighiales : Salicaceae : Populus : *Populus balsamoides*	33.9 - 5.333 Ma Cenozoic
Castanea genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : *Castanea*	23.03 - 5.333 Ma Miocene
Ulmus genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Ulmaceae : *Ulmus*	33.9 - 5.333 Ma Cenozoic
Tilia genus	Plantae : Tracheophyta : Magnoliopsida : Malvales : Malvaceae : *Tilia*	23.03 - 5.333 Ma Miocene
Arctostaphylos genus	Plantae : Tracheophyta : Magnoliopsida : Ericales : Ericaceae : *Arctostaphylos*	33.9 - 5.333 Ma Cenozoic
Equisetum arcticum species	Plantae : Tracheophyta : Polypodiopsida : Equisetales : Equisetaceae : Equisetum : *Equisetum arcticum*	23.03 - 5.333 Ma Miocene
Ginkgo adiantoides species	Plantae : Tracheophyta : Ginkgoopsida : Ginkgoales : Ginkgoaceae : Ginkgo : *Ginkgo adiantoides*	23.03 - 5.333 Ma Miocene
Zelkova genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Ulmaceae : *Zelkova*	33.9 - 5.333 Ma Cenozoic
Juniperus genus	Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : *Juniperus*	33.9 - 5.333 Ma Cenozoic
Picea genus	Plantae : Tracheophyta : Pinopsida : Pinales : Pinaceae : *Picea*	33.9 - 5.333 Ma Cenozoic
Pseudopermophorus annettae species	Animalia : Mollusca : Bivalvia : Venerida : Permophoridae : Pseudopermophorus : *Pseudopermophorus annettae*	259.9 - 252.17 Ma Permian
Ostrya genus	Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : *Ostrya*	33.9 - 5.333 Ma Cenozoic
Mahonia genus	Plantae : Tracheophyta : Magnoliopsida : Ranunculales : Berberidaceae : *Mahonia*	33.9 - 5.333 Ma Cenozoic
Sassafras genus	Plantae : Tracheophyta : Magnoliopsida : Laurales : Lauraceae : *Sassafras*	23.03 - 5.333 Ma Miocene
Crataegus genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rosaceae : *Crataegus*	23.03 - 5.333 Ma Miocene
Rosa genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rosaceae : *Rosa*	33.9 - 5.333 Ma Cenozoic
Cercis genus	Plantae : Spermatophyta : Magnoliopsida : Fabales : Leguminosae : *Cercis*	33.9 - 5.333 Ma Cenozoic
Dipteronia genus	Plantae : Spermatophyta : Magnoliopsida : Sapindales : Aceraceae : *Dipteronia*	33.9 - 5.333 Ma Cenozoic
Koelreuteria genus	Plantae : Tracheophyta : Magnoliopsida : Sapindales : Sapindaceae : *Koelreuteria*	33.9 - 5.333 Ma Cenozoic
Ceanothus genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rhamnaceae : *Ceanothus*	23.03 - 5.333 Ma Miocene
Sterculia genus	Plantae : Spermatophyta : Magnoliopsida : *Sterculia*	23.03 - 5.333 Ma Miocene
Arundo genus	Plantae : Angiospermae : *Arundo*	23.03 - 5.333 Ma Miocene
Prographularia groenlandica species	Animalia : Mollusca : Cephalopoda : Aulacocerida : Aulacoceratidae : Prographularia : *Prographularia groenlandica*	259.9 - 252.17 Ma Permian
Poacites genus	*Poacites*	23.03 - 5.333 Ma Miocene
Mimosites genus	Plantae : Tracheophyta : Magnoliopsida : Fabales : Fabaceae : *Mimosites*	23.03 - 5.333 Ma Miocene
Berchemia genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rhamnaceae : *Berchemia*	23.03 - 5.333 Ma Miocene
Pteris genus	Plantae : Tracheophyta : Polypodiopsida : Polypodiales : Pteridaceae : *Pteris*	23.03 - 5.333 Ma Miocene
Cassia genus	*Cassia*	23.03 - 5.333 Ma Miocene
Muscites genus	Plantae : Bryophyta : Bryopsida : *Muscites*	33.9 - 5.333 Ma Cenozoic
Corylus insignis species	Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : Corylus : *Corylus insignis*	33.9 - 5.333 Ma Cenozoic
Ptelea genus	*Ptelea*	33.9 - 5.333 Ma Cenozoic
Cercocarpus genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rosaceae : *Cercocarpus*	33.9 - 5.333 Ma Cenozoic
Cercocarpus antiquus species	Plantae : Spermatophyta : Magnoliopsida : Rosales : Rosaceae : Cercocarpus : *Cercocarpus antiquus*	33.9 - 5.333 Ma Cenozoic
Diphysa genus	Plantae : Spermatophyta : Magnoliopsida : Fabales : Leguminosae : *Diphysa*	23.03 - 5.333 Ma Miocene
Leucaena californica species	Plantae : Spermatophyta : Magnoliopsida : Fabales : Leguminosae : Leucaena : *Leucaena californica*	33.9 - 5.333 Ma Cenozoic
Pithecolobium genus	Plantae : Spermatophyta : Magnoliopsida : Fabales : Leguminosae : *Pithecolobium*	23.03 - 5.333 Ma Miocene
Colubrina genus	Plantae : Tracheophyta : Magnoliopsida : Rosales : Rhamnaceae : *Colubrina*	23.03 - 5.333 Ma Miocene
Robinia californica species	Plantae : Spermatophyta : Magnoliopsida : Fabales : Leguminosae : Robinia : *Robinia californica*	23.03 - 5.333 Ma Miocene
Typha lesquereuxi species	Plantae : Tracheophyta : Liliopsida : Poales : Typhaceae : Typha : *Typha lesquereuxi*	33.9 - 5.333 Ma Cenozoic
Quercus convexa species	Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : Quercus : *Quercus convexa*	33.9 - 5.333 Ma Cenozoic
Mahonia lobodonta species	Plantae : Spermatophyta : Magnoliopsida : Ranunculales : Berberidaceae : Mahonia : *Mahonia lobodonta*	33.9 - 5.333 Ma Cenozoic

Fossil Localities

Click to show 3 fossil localities

USA

Montana
- Beaverhead County

Other Regions, Features and Areas that Intersect

North AmericaContinent

Rocky MountainsMountain Range

North America PlateTectonic Plate

Belt BasinBasin
Great Falls DomainDomain
Northern Rocky MountainsWide Rift
Wyoming DomainDomain

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Horse Prairie Mining District, Beaverhead County, Montana, USAiRegional Level TypesHorse Prairie Mining DistrictMining District Beaverhead CountyCounty MontanaState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

List of minerals for each chemical element

Fossils

Other Regions, Features and Areas that Intersect

Horse Prairie Mining District, Beaverhead County, Montana, USA i
Regional Level Types
Horse Prairie Mining District Mining District
Beaverhead County County
Montana State
USA Country