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Converse County, Wyoming, USAi
Regional Level Types
Converse CountyCounty
WyomingState
USACountry

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PhotosMapsSearch
07301820015506329034063.jpg
Buffalo Mine Head Frame at Exxon's Highland Uranium mine c. 1976

Highland Uranium Operation, Highland Flats-Box Creek Mining District, Converse County, Wyoming, USA
08019490014949879979098.jpg
Uraninite

Southern Powder River Basin Mining District, Converse County, Wyoming, USA
05530310016343531936763.jpg
Serpentine Subgroup

Badger Prospect, Deer Creek Mining District, Converse County, Wyoming, USA
07301820015506329034063.jpg
Buffalo Mine Head Frame at Exxon's Highland Uranium mine c. 1976

Highland Uranium Operation, Highland Flats-Box Creek Mining District, Converse County, Wyoming, USA
08019490014949879979098.jpg
Uraninite

Southern Powder River Basin Mining District, Converse County, Wyoming, USA
05530310016343531936763.jpg
Serpentine Subgroup

Badger Prospect, Deer Creek Mining District, Converse County, Wyoming, USA
07301820015506329034063.jpg
Buffalo Mine Head Frame at Exxon's Highland Uranium mine c. 1976

Highland Uranium Operation, Highland Flats-Box Creek Mining District, Converse County, Wyoming, USA
08019490014949879979098.jpg
Uraninite

Southern Powder River Basin Mining District, Converse County, Wyoming, USA
Neighbouring regions:
Campbell County, Wyoming, USA
Johnson County, Wyoming, USA
Weston County, Wyoming, USA
Albany County, Wyoming, USA
Natrona County, Wyoming, USA
Niobrara County, Wyoming, USA
Platte County, Wyoming, USA
Type:
County
Largest Settlements:
PlacePopulation
Douglas6,531 (2017)
Glenrock2,598 (2017)
Rolling Hills442 (2017)
Mindat Locality ID:
22906
Long-form identifier:
mindat:1:2:22906:0
GUID (UUID V4):
b39ad973-5eef-40be-bf71-e925238d77e5
Other Languages:
View 30 more...
French:
comté de Converse, Wyoming, États-Unis
German:
Converse County, Wyoming, Vereinigte Staaten
Italian:
contea di Converse, Wyoming, Stati Uniti d'America
Russian:
Конверс, Вайоминг, Соединённые Штаты Америки
Simplified Chinese:
康弗斯縣, 怀俄明州, 美国
Spanish:
Condado de Converse, Wyoming, Estados Unidos
Albanian:
Converse County, Wyoming, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة كونفيرس, وايومنغ, الولايات المتحدة
Azeri:
Konvers , Vayominq, Amerika Birləşmiş Ştatları
Basque:
Converse konderria , Wyoming
Bavarian:
Converse County, Wyoming, Vaoanigte Stootn
Bishnupriya Manipuri:
কনভার্স কাউন্টি, ৱাইওমিং, তিলপারাষ্ট্র
Bulgarian:
Кънвърс, Уайоминг, Съединени американски щати
Cebuano:
Converse County, Wyoming
Dutch:
Converse County, Wyoming, Verenigde Staten
Farsi/Persian:
شهرستان کانورس، وایومینگ, وایومینگ, ایالات متحده آمریکا
Hungarian:
Converse megye, Wyoming, Amerikai Egyesült Államok
Japanese:
コンヴァース郡, ワイオミング州, アメリカ合衆国
Latin:
Converse Comitatus, Vyomina, Civitates Foederatae Americae
Low Saxon/Low German:
Converse County, Wyoming, USA
Min Dong Chinese:
Converse Gông, Wyoming
Minnan / Hokkien-Taiwanese:
Converse Kūn
Norwegian:
Converse County, Wyoming, USA
Polish:
Hrabstwo Converse, Wyoming, Stany Zjednoczone
Portuguese:
Condado de Converse, Wyoming, Estados Unidos
Romanian:
Comitatul Converse, Wyoming, Statele Unite ale Americii
Sardinian:
contea de Converse, Wyoming, Istados Unidos de Amèrica
Serbian:
Округ Конверс , Вајоминг, Сједињене Америчке Државе
Serbo-Croatian:
Converse County, Wyoming, Sjedinjene Američke Države
Swedish:
Converse County, Wyoming, USA
Traditional Chinese:
康弗斯縣, 懷俄明州, 美國
Turkish:
Converse, Wyoming, Amerika Birleşik Devletleri
Ukrainian:
Конверс, Вайомінг, Сполучені Штати Америки
Urdu:
کونورس کاؤنٹی، وائیومنگ, وائیومنگ, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Converse, Wyoming, Chủng Quốc Hoa Kỳ
Waray:
Condado han Converse, Wyoming, Estados Unidos


Converse County is a county located in the U.S. state of Wyoming. Its county seat is Douglas.

Converse County was created in 1888 by the legislature of the Wyoming Territory, of area annexed from Albany and Laramie counties.

Converse County was named for A.R. Converse, a banker and rancher from Cheyenne, Wyoming, who was co-owner with Francis E. Warren of a large ranch in the eastern part of Converse County.

A portion of Converse County territory was annexed for the formation of Niobrara County in 1911. Converse County was slightly enlarged with territory from Albany County in 1955 after a special election.

According to the US Census Bureau, the county has a total area of 4,265 square miles (11,050 km²), of which 4,255 square miles (11,020 km²) is land and 10 square miles (26 km²) (0.2%) is water.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

43 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Anhydrite
Formula: CaSO4
ⓘ Anthophyllite
Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘ 'Asbestos'
ⓘ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ Calcite
Formula: CaCO3
ⓘ Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Localities: Reported from at least 7 localities in this region.
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Chrysotile
Formula: Mg3(Si2O5)(OH)4
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
ⓘ Clinochlore var. Chromium-bearing Clinochlore
Formula: Mg5(Al,Cr)2Si3O10(OH)8
ⓘ Coffinite
Formula: U(SiO4) · nH2O
ⓘ Copper
Formula: Cu
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Erythrite
Formula: Co3(AsO4)2 · 8H2O
ⓘ 'Feldspar Group'
ⓘ 'Ferro-actinolite-Tremolite Series'
Description: Nephrite jade (within the amphibolite dikes, Laramie Mts)
ⓘ Ferroselite
Formula: FeSe2
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Goethite
Formula: α-Fe3+O(OH)
ⓘ 'Gummite'
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'Lepidolite'
ⓘ Liebigite
Formula: Ca2(UO2)(CO3)3 · 11H2O
ⓘ 'Limonite'
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
ⓘ 'Mica Group'
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Molybdenite
Formula: MoS2
ⓘ Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Powellite
Formula: Ca(MoO4)
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 6 localities in this region.
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 11 localities in this region.
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Quartz var. Jasper
ⓘ Quartz var. Moss Agate
Formula: SiO2
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Schoepite
Formula: (UO2)8O2(OH)12 · 12H2O
ⓘ Schröckingerite
Formula: NaCa3(UO2)(CO3)3(SO4)F · 10H2O
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
References:
USGS Bull 2192
ⓘ Talc
Formula: Mg3Si4O10(OH)2
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
ⓘ Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
ⓘ 'UM1979-21-SiO:AlHNaV'
Formula: (Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
ⓘ Uraninite
Formula: UO2
Localities: Reported from at least 12 localities in this region.
ⓘ Uraninite var. Pitchblende
Formula: UO2
ⓘ Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Localities: Reported from at least 8 localities in this region.
ⓘ Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
ⓘ Vivianite
Formula: Fe2+Fe2+2(PO4)2 · 8H2O
ⓘ Volkonskoite
Formula: Ca0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘCopper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘFerroselite2.EB.10aFeSe2
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.α-Fe3+O(OH)
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
ⓘvar. Moss Agate4.DA.05SiO2
ⓘvar. Jasper4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘUraninite
var. Pitchblende		4.DL.05UO2
ⓘ4.DL.05UO2
ⓘSchoepite4.GA.05(UO2)8O2(OH)12 · 12H2O
ⓘCarnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
ⓘTyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
ⓘLiebigite5.ED.20Ca2(UO2)(CO3)3 · 11H2O
ⓘSchröckingerite5.EG.05NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘScheelite7.GA.05Ca(WO4)
ⓘPowellite7.GA.05Ca(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘVivianite8.CE.40Fe2+Fe2+2(PO4)2 · 8H2O
ⓘErythrite8.CE.40Co3(AsO4)2 · 8H2O
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
Group 9 - Silicates
ⓘChrysotile9..Mg3(Si2O5)(OH)4
ⓘCoffinite9.AD.30U(SiO4) · nH2O
ⓘUranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘAnthophyllite9.DD.05◻{Mg2}{Mg5}(Si8O22)(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘTalc9.EC.05Mg3Si4O10(OH)2
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMontmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
ⓘVolkonskoite9.EC.40Ca0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
ⓘVermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
ⓘClinochlore
var. Chromium-bearing Clinochlore		9.EC.55Mg5(Al,Cr)2Si3O10(OH)8
ⓘ9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Hornblende Root Name Group'-◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4
ⓘ'Ferro-actinolite-Tremolite Series'-
ⓘ'Mica Group'-
ⓘ'Lepidolite'-
ⓘ'Limonite'-
ⓘ'Gummite'-
ⓘ'Feldspar Group'-
ⓘ'Chlorite Group'-
ⓘ'Asbestos'-
ⓘ'UM1979-21-SiO:AlHNaV'-(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Hⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ CarnotiteK2(UO2)2(VO4)2 · 3H2O
Hⓘ ChrysotileMg3(Si2O5)(OH)4
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ CoffiniteU(SiO4) · nH2O
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ ErythriteCo3(AsO4)2 · 8H2O
Hⓘ Goethiteα-Fe3+O(OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ LiebigiteCa2(UO2)(CO3)3 · 11H2O
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Hⓘ Schoepite(UO2)8O2(OH)12 · 12H2O
Hⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Hⓘ TalcMg3Si4O10(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Hⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Hⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Hⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Hⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Hⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
Hⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ LiebigiteCa2(UO2)(CO3)3 · 11H2O
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AnhydriteCaSO4
Oⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Oⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CalciteCaCO3
Oⓘ CarnotiteK2(UO2)2(VO4)2 · 3H2O
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChrysotileMg3(Si2O5)(OH)4
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ CoffiniteU(SiO4) · nH2O
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ ErythriteCo3(AsO4)2 · 8H2O
Oⓘ Goethiteα-Fe3+O(OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ HematiteFe2O3
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ LiebigiteCa2(UO2)(CO3)3 · 11H2O
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Quartz var. Moss AgateSiO2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Oⓘ Uraninite var. PitchblendeUO2
Oⓘ PowelliteCa(MoO4)
Oⓘ QuartzSiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ Schoepite(UO2)8O2(OH)12 · 12H2O
Oⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Oⓘ TalcMg3Si4O10(OH)2
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Oⓘ UraniniteUO2
Oⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Oⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Oⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Oⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Oⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
Oⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
FFluorine
Fⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Fⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Naⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Naⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
MgMagnesium
Mgⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Mgⓘ ChrysotileMg3(Si2O5)(OH)4
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Mgⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mgⓘ TalcMg3Si4O10(OH)2
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Mgⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Mgⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Alⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Alⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Alⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Anthophyllite◻{Mg2}{Mg5}(Si8O22)(OH)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ ChrysotileMg3(Si2O5)(OH)4
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ CoffiniteU(SiO4) · nH2O
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ MicroclineK(AlSi3O8)
Siⓘ Quartz var. Moss AgateSiO2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Siⓘ QuartzSiO2
Siⓘ TalcMg3Si4O10(OH)2
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Siⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Siⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Siⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siⓘ Garnet GroupX3Z2(SiO4)3
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
Siⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
PPhosphorus
Pⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
SSulfur
Sⓘ AnhydriteCaSO4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
ClChlorine
Clⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kⓘ CarnotiteK2(UO2)2(VO4)2 · 3H2O
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ LiebigiteCa2(UO2)(CO3)3 · 11H2O
Caⓘ Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Caⓘ PowelliteCa(MoO4)
Caⓘ ScheeliteCa(WO4)
Caⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Caⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Caⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Caⓘ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
VVanadium
Vⓘ CarnotiteK2(UO2)2(VO4)2 · 3H2O
Vⓘ TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Vⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Clinochlore var. Chromium-bearing ClinochloreMg5(Al,Cr)2Si3O10(OH)8
Crⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ FerroseliteFeSe2
Feⓘ Goethiteα-Fe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Feⓘ VivianiteFe2+Fe22+(PO4)2 · 8H2O
Feⓘ VolkonskoiteCa0.3(Cr,Mg,Fe)2((Si,Al)4O10)(OH)2 · 4H2O
Feⓘ UM1979-21-SiO:AlHNaV(Na,Ca)0.73(V,Mg,Fe)2(Si,Al,V)4O10(OH)2 · nH2O
CoCobalt
Coⓘ ErythriteCo3(AsO4)2 · 8H2O
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
AsArsenic
Asⓘ ErythriteCo3(AsO4)2 · 8H2O
SeSelenium
Seⓘ FerroseliteFeSe2
MoMolybdenum
Moⓘ MolybdeniteMoS2
Moⓘ PowelliteCa(MoO4)
WTungsten
Wⓘ ScheeliteCa(WO4)
UUranium
Uⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Uⓘ CarnotiteK2(UO2)2(VO4)2 · 3H2O
Uⓘ CoffiniteU(SiO4) · nH2O
Uⓘ LiebigiteCa2(UO2)(CO3)3 · 11H2O
Uⓘ Uraninite var. PitchblendeUO2
Uⓘ Schoepite(UO2)8O2(OH)12 · 12H2O
Uⓘ SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Uⓘ TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Uⓘ UraniniteUO2
Uⓘ UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

Fossils

There are 28 fossil localities from the PaleoBioDB database within this region.

BETA TEST - 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.

Occurrences334
Youngest Fossil Listed0.01 Ma (Pleistocene)
Oldest Fossil Listed323 Ma (Carboniferous)
Stratigraphic UnitsClick here to view 14 stratigraphic units.
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Osteichthyes
unranked clade		Animalia : Chordata : Osteichthyes72.1 - 66 Ma
Late/Upper Cretaceous
Amphibia
class		Animalia : Chordata : Amphibia72.1 - 66 Ma
Late/Upper Cretaceous
Reptilia
class		Animalia : Chordata : Reptilia72.1 - 66 Ma
Late/Upper Cretaceous
Larus
genus		Animalia : Chordata : Aves : Charadriiformes : Laridae : Larus0.126 - 0.0117 Ma
Pleistocene
Mammalia
class		Animalia : Chordata : Mammalia72.1 - 66 Ma
Late/Upper Cretaceous
Calamagras
genus		Animalia : Chordata : Reptilia : Squamata : Boidae : Calamagras33.9 - 33.3 Ma
Oligocene
Ogmophis
genus		Animalia : Chordata : Reptilia : Squamata : Boidae : Ogmophis33.9 - 33.3 Ma
Oligocene
Theropoda
unranked clade		Animalia : Chordata : Saurischia : Theropoda157.3 - 145 Ma
Jurassic
Tyrannosauridae
family		Animalia : Chordata : Reptilia : Dinosauria : Tyrannosauridae72.1 - 66 Ma
Late/Upper Cretaceous
Hadrosauridae
family		Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae72.1 - 66 Ma
Late/Upper Cretaceous
Ceratopsidae
family		Animalia : Chordata : Reptilia : Dinosauria : Ceratopsidae72.1 - 66 Ma
Late/Upper Cretaceous
Triceratops
genus		Animalia : Chordata : Reptilia : Dinosauria : Ceratopsidae : Triceratops72.1 - 66 Ma
Late/Upper Cretaceous
Buteo
genus		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Buteo0.126 - 0.0117 Ma
Pleistocene
Cryptotis
genus		Animalia : Chordata : Mammalia : Soricomorpha : Soricidae : Cryptotis0.126 - 0.0117 Ma
Pleistocene
Brachyrhynchocyon
genus		Animalia : Chordata : Mammalia : Carnivora : Amphicyonidae : Brachyrhynchocyon37.2 - 33.9 Ma
Paleogene
Ischyromyidae
family		Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae37.2 - 33.9 Ma
Paleogene
Ischyromys
genus		Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Ischyromys37.2 - 33.3 Ma
Paleogene
Dicrostonyx
genus		Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Dicrostonyx0.126 - 0.0117 Ma
Pleistocene
Hemiauchenia
genus		Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Hemiauchenia0.126 - 0.0117 Ma
Pleistocene
Protoceratidae
family		Animalia : Chordata : Mammalia : Artiodactyla : Protoceratidae37.2 - 33.9 Ma
Paleogene
Bootherium
genus		Animalia : Chordata : Mammalia : Artiodactyla : Bovidae : Bootherium0.126 - 0.0117 Ma
Pleistocene
Oreamnos
genus		Animalia : Chordata : Mammalia : Artiodactyla : Bovidae : Oreamnos0.126 - 0.0117 Ma
Pleistocene
Brontotheriidae
family		Animalia : Chordata : Mammalia : Perissodactyla : Brontotheriidae37.2 - 33.9 Ma
Paleogene
Subhyracodon mitis
species		Animalia : Chordata : Mammalia : Perissodactyla : Rhinocerotidae : Subhyracodon : Subhyracodon mitis37.2 - 33.9 Ma
Paleogene
Apternodus brevirostris
species		Animalia : Chordata : Mammalia : Apternodontidae : Apternodus : Apternodus brevirostris37.2 - 33.9 Ma
Paleogene
Apternodus gregoryi
species		Animalia : Chordata : Mammalia : Apternodontidae : Apternodus : Apternodus gregoryi37.2 - 33.9 Ma
Paleogene
Apternodus major
species		Animalia : Chordata : Mammalia : Apternodontidae : Apternodus : Apternodus major37.2 - 33.9 Ma
Paleogene
Arctodus simus
species		Animalia : Chordata : Mammalia : Carnivora : Ursidae : Arctodus : Arctodus simus0.126 - 0.0117 Ma
Pleistocene
Camelops hesternus
species		Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Camelops : Camelops hesternus0.126 - 0.0117 Ma
Pleistocene
Hesperocyon gregarius
species		Animalia : Chordata : Mammalia : Carnivora : Canidae : Hesperocyon : Hesperocyon gregarius37.2 - 33.3 Ma
Paleogene
Canis lupus
species		Animalia : Chordata : Mammalia : Carnivora : Canidae : Canis : Canis lupus0.126 - 0.0117 Ma
Pleistocene
Vulpes vulpes
species		Animalia : Chordata : Mammalia : Carnivora : Canidae : Vulpes : Vulpes vulpes0.126 - 0.0117 Ma
Pleistocene
Centetodon chadronensis
species		Animalia : Chordata : Mammalia : Geolabididae : Centetodon : Centetodon chadronensis33.9 - 33.3 Ma
Oligocene
Alces alces
species		Animalia : Chordata : Mammalia : Artiodactyla : Cervidae : Alces : Alces alces0.126 - 0.0117 Ma
Pleistocene
Equus conversidens
species		Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Equus : Equus conversidens0.126 - 0.0117 Ma
Pleistocene
Eumys elegans
species		Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Eumys : Eumys elegans33.9 - 33.3 Ma
Oligocene
Uncia atrox
species		Animalia : Chordata : Mammalia : Carnivora : Felidae : Uncia : Uncia atrox0.126 - 0.0117 Ma
Pleistocene
Puma concolor
species		Animalia : Chordata : Mammalia : Carnivora : Felidae : Puma : Puma concolor0.126 - 0.0117 Ma
Pleistocene
Hyaenodon crucians
species		Animalia : Chordata : Mammalia : Hyaenodontidae : Hyaenodon : Hyaenodon crucians37.2 - 33.3 Ma
Paleogene
Hyaenodon horridus
species		Animalia : Chordata : Mammalia : Hyaenodontidae : Hyaenodon : Hyaenodon horridus37.2 - 33.3 Ma
Paleogene
Leptictis dakotensis
species		Animalia : Chordata : Mammalia : Leptictidae : Leptictis : Leptictis dakotensis37.2 - 33.3 Ma
Paleogene
Ischyromys veterior
species		Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Ischyromys : Ischyromys veterior37.2 - 33.9 Ma
Paleogene
Hypertragulus calcaratus
species		Animalia : Chordata : Mammalia : Artiodactyla : Hypertragulidae : Hypertragulus : Hypertragulus calcaratus33.9 - 33.3 Ma
Oligocene
Leptauchenia decora
species		Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Leptauchenia : Leptauchenia decora33.9 - 33.3 Ma
Oligocene
Leptauchenia major
species		Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Leptauchenia : Leptauchenia major30.8 - 20.43 Ma
Cenozoic
Leptomeryx evansi
species		Animalia : Chordata : Mammalia : Artiodactyla : Leptomerycidae : Leptomeryx : Leptomeryx evansi33.9 - 33.3 Ma
Oligocene
Leptomeryx speciosus
species		Animalia : Chordata : Mammalia : Artiodactyla : Leptomerycidae : Leptomeryx : Leptomeryx speciosus37.2 - 33.3 Ma
Paleogene
Ochotona princeps
species		Animalia : Chordata : Mammalia : Lagomorpha : Ochotonidae : Ochotona : Ochotona princeps0.126 - 0.0117 Ma
Pleistocene
Litolagus molidens
species		Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Litolagus : Litolagus molidens33.9 - 33.3 Ma
Oligocene
Merycoidodon (Merycoidodon) culbertsoni
species		Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Merycoidodon : Merycoidodon (Merycoidodon) culbertsoni37.2 - 33.3 Ma
Paleogene
Miniochoerus forsythae
species		Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Miniochoerus : Miniochoerus forsythae37.2 - 33.9 Ma
Paleogene
Microtus pennsylvanicus
species		Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Microtus : Microtus pennsylvanicus0.126 - 0.0117 Ma
Pleistocene
Gulo gulo
species		Animalia : Chordata : Mammalia : Carnivora : Mustelidae : Gulo : Gulo gulo0.126 - 0.0117 Ma
Pleistocene
Mustela nigripes
species		Animalia : Chordata : Mammalia : Carnivora : Mustelidae : Mustela : Mustela nigripes0.126 - 0.0117 Ma
Pleistocene
Palaeogale sectoria
species		Animalia : Chordata : Mammalia : Carnivora : Palaeogale : Palaeogale sectoria33.9 - 33.3 Ma
Oligocene
Miniochoerus gracilis
species		Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Miniochoerus : Miniochoerus gracilis33.9 - 33.3 Ma
Oligocene
Ovis canadensis
species		Animalia : Chordata : Mammalia : Artiodactyla : Bovidae : Ovis : Ovis canadensis0.126 - 0.0117 Ma
Pleistocene
Megalagus brachyodon
species		Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Megalagus : Megalagus brachyodon37.2 - 33.9 Ma
Paleogene
Palaeolagus haydeni
species		Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Palaeolagus : Palaeolagus haydeni37.2 - 33.3 Ma
Paleogene
Palaeolagus intermedius
species		Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Palaeolagus : Palaeolagus intermedius37.2 - 33.3 Ma
Paleogene
Megalagus turgidus
species		Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Megalagus : Megalagus turgidus37.2 - 33.3 Ma
Paleogene
Poebrotherium eximium
species		Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Poebrotherium : Poebrotherium eximium37.2 - 33.3 Ma
Paleogene
Paratylopus labiatus
species		Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Paratylopus : Paratylopus labiatus33.9 - 33.3 Ma
Oligocene
Poebrotherium wilsoni
species		Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Poebrotherium : Poebrotherium wilsoni37.2 - 33.3 Ma
Paleogene
Mesoreodon minor
species		Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Mesoreodon : Mesoreodon minor30.8 - 20.43 Ma
Cenozoic
Spermophilus variegatus
species		Animalia : Chordata : Mammalia : Rodentia : Sciuridae : Spermophilus : Spermophilus variegatus0.126 - 0.0117 Ma
Pleistocene
Willeumys viduus
species		Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Willeumys : Willeumys viduus33.9 - 33.3 Ma
Oligocene
Sorex hoyi
species		Animalia : Chordata : Mammalia : Soricomorpha : Soricidae : Sorex : Sorex hoyi0.126 - 0.0117 Ma
Pleistocene
Ursus arctos
species		Animalia : Chordata : Mammalia : Carnivora : Ursidae : Ursus : Ursus arctos0.126 - 0.0117 Ma
Pleistocene
Taxidea taxus
species		Animalia : Chordata : Mammalia : Carnivora : Mustelidae : Taxidea : Taxidea taxus0.126 - 0.0117 Ma
Pleistocene
Yoderimys bumpi
species		Animalia : Chordata : Mammalia : Rodentia : Eomyidae : Yoderimys : Yoderimys bumpi37.2 - 33.9 Ma
Paleogene
Nodosaurus textilis
species		Animalia : Chordata : Reptilia : Dinosauria : Nodosauridae : Nodosaurus : Nodosaurus textilis99.6 - 93.5 Ma
Late/Upper Cretaceous
Platanus raynoldsi
species		Plantae : Spermatophyta : Magnoliopsida : Proteales : Platanaceae : Platanus : Platanus raynoldsi66 - 56 Ma
Paleocene
Edmontosaurus annectens
species		Animalia : Chordata : Ornithischia : Hadrosauridae : Edmontosaurus : Edmontosaurus annectens72.1 - 66 Ma
Late/Upper Cretaceous
Plantae
kingdom		Plantae157.3 - 145 Ma
Jurassic
Troodontidae
family		Animalia : Chordata : Saurischia : Avetheropoda : Troodontidae157.3 - 145 Ma
Jurassic
Carya
genus		Plantae : Tracheophyta : Magnoliopsida : Fagales : Juglandaceae : Carya66 - 56 Ma
Paleocene
Alnus
genus		Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : Alnus66 - 56 Ma
Paleocene
Ulmaceae
family		Plantae : Tracheophyta : Magnoliopsida : Rosales : Ulmaceae66 - 56 Ma
Paleocene
Tyrannosaurus rex
species		Animalia : Chordata : Reptilia : Dinosauria : Tyrannosauridae : Tyrannosaurus : Tyrannosaurus rex72.1 - 66 Ma
Late/Upper Cretaceous
Charophyta
phylum		Plantae : Charophyta157.3 - 145 Ma
Jurassic
Ampelopsis acerifolia
species		Plantae : Tracheophyta : Magnoliopsida : Vitales : Vitaceae : Ampelopsis : Ampelopsis acerifolia66 - 56 Ma
Paleocene
Brachyphyllum
genus		Plantae : Tracheophyta : Pinopsida : Pinales : Araucariaceae : Brachyphyllum157.3 - 145 Ma
Jurassic
Supersaurus vivianae
species		Animalia : Chordata : Reptilia : Dinosauria : Diplodocidae : Supersaurus : Supersaurus vivianae157.3 - 145 Ma
Jurassic
Triceratops prorsus
species		Animalia : Chordata : Reptilia : Dinosauria : Ceratopsidae : Triceratops : Triceratops prorsus72.1 - 66 Ma
Late/Upper Cretaceous
Anas
genus		Animalia : Chordata : Aves : Anseriformes : Anatidae : Anas0.126 - 0.0117 Ma
Pleistocene
Parophisaurus pawneensis
species		Animalia : Chordata : Reptilia : Squamata : Anguidae : Parophisaurus : Parophisaurus pawneensis33.9 - 33.3 Ma
Oligocene
Anas platyrhynchos
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Anas : Anas platyrhynchos0.126 - 0.0117 Ma
Pleistocene
Anas acuta
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Anas : Anas acuta0.126 - 0.0117 Ma
Pleistocene
Spatula clypeata
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Spatula : Spatula clypeata0.126 - 0.0117 Ma
Pleistocene
Numenius borealis
species		Animalia : Chordata : Aves : Charadriiformes : Scolopacidae : Numenius : Numenius borealis0.126 - 0.0117 Ma
Pleistocene
Calidris melanotos
species		Animalia : Chordata : Aves : Charadriiformes : Scolopacidae : Calidris : Calidris melanotos0.126 - 0.0117 Ma
Pleistocene
Turdus migratorius
species		Animalia : Chordata : Aves : Passeriformes : Turdidae : Turdus : Turdus migratorius0.126 - 0.0117 Ma
Pleistocene
Ectopistes migratorius
species		Animalia : Chordata : Aves : Columbiformes : Columbidae : Ectopistes : Ectopistes migratorius0.126 - 0.0117 Ma
Pleistocene
Neophrontops americanus
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Neophrontops : Neophrontops americanus0.126 - 0.0117 Ma
Pleistocene
Aquila chrysaetos
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Aquila : Aquila chrysaetos0.126 - 0.0117 Ma
Pleistocene
Accipiter gentilis
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Accipiter : Accipiter gentilis0.126 - 0.0117 Ma
Pleistocene
Rhineura hatcherii
species		Animalia : Chordata : Reptilia : Squamata : Rhineuridae : Rhineura : Rhineura hatcherii33.9 - 33.3 Ma
Oligocene
Antigone canadensis
species		Animalia : Chordata : Aves : Gruiformes : Gruidae : Antigone : Antigone canadensis0.126 - 0.0117 Ma
Pleistocene
Branta canadensis
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Branta : Branta canadensis0.126 - 0.0117 Ma
Pleistocene
Accipiter striatus
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Accipiter : Accipiter striatus0.126 - 0.0117 Ma
Pleistocene
Buteo jamaicensis
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Buteo : Buteo jamaicensis0.126 - 0.0117 Ma
Pleistocene
Tympanuchus phasianellus
species		Animalia : Chordata : Aves : Galliformes : Phasianidae : Tympanuchus : Tympanuchus phasianellus0.126 - 0.0117 Ma
Pleistocene
Charadrius vociferus
species		Animalia : Chordata : Aves : Charadriiformes : Charadriidae : Charadrius : Charadrius vociferus0.126 - 0.0117 Ma
Pleistocene
Colaptes auratus
species		Animalia : Chordata : Aves : Piciformes : Picidae : Colaptes : Colaptes auratus0.126 - 0.0117 Ma
Pleistocene
Petrochelidon pyrrhonota
species		Animalia : Chordata : Aves : Passeriformes : Hirundinidae : Petrochelidon : Petrochelidon pyrrhonota0.126 - 0.0117 Ma
Pleistocene
Pica pica
species		Animalia : Chordata : Aves : Passeriformes : Corvidae : Pica : Pica pica0.126 - 0.0117 Ma
Pleistocene
Agelaius phoeniceus
species		Animalia : Chordata : Aves : Passeriformes : Icteridae : Agelaius : Agelaius phoeniceus0.126 - 0.0117 Ma
Pleistocene
Zonotrichia albicollis
species		Animalia : Chordata : Aves : Passeriformes : Passerellidae : Zonotrichia : Zonotrichia albicollis0.126 - 0.0117 Ma
Pleistocene
Sturnella
genus		Animalia : Chordata : Aves : Passeriformes : Icteridae : Sturnella0.126 - 0.0117 Ma
Pleistocene
Carduelis
genus		Animalia : Chordata : Aves : Passeriformes : Fringillidae : Carduelis0.126 - 0.0117 Ma
Pleistocene
Anas crecca
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Anas : Anas crecca0.126 - 0.0117 Ma
Pleistocene
Falco sparverius
species		Animalia : Chordata : Aves : Falconiformes : Falconidae : Falco : Falco sparverius0.126 - 0.0117 Ma
Pleistocene
Corvus corax
species		Animalia : Chordata : Aves : Passeriformes : Corvidae : Corvus : Corvus corax0.126 - 0.0117 Ma
Pleistocene
Quiscalus
genus		Animalia : Chordata : Aves : Passeriformes : Icteridae : Quiscalus0.126 - 0.0117 Ma
Pleistocene
Borealosuchus sternbergii
species		Animalia : Chordata : Reptilia : Crocodylia : Borealosuchus : Borealosuchus sternbergii72.1 - 66 Ma
Late/Upper Cretaceous
Anas schneideri
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Anas : Anas schneideri0.126 - 0.0117 Ma
Pleistocene
Falco mexicanus
species		Animalia : Chordata : Aves : Falconiformes : Falconidae : Falco : Falco mexicanus0.126 - 0.0117 Ma
Pleistocene
Bubo virginianus
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Bubo : Bubo virginianus0.126 - 0.0117 Ma
Pleistocene
Asio flammeus
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Asio : Asio flammeus0.126 - 0.0117 Ma
Pleistocene
Arborimus longicaudus
species		Animalia : Chordata : Mammalia : Rodentia : Cricetidae : Phenacomys : Arborimus longicaudus0.126 - 0.0117 Ma
Pleistocene
Helodermoides tuberculatus
species		Animalia : Chordata : Reptilia : Squamata : Anguidae : Helodermoides : Helodermoides tuberculatus37.2 - 33.3 Ma
Paleogene
Mustela zibellina americana
subspecies		Animalia : Chordata : Mammalia : Carnivora : Mustelidae : Martes : Mustela zibellina americana0.126 - 0.0117 Ma
Pleistocene
Heslerodus divergens
species		Animalia : Chordata : Chondrichthyes : Ctenacanthiformes : Heslerodidae : Heslerodus : Heslerodus divergens323.2 - 315.2 Ma
Carboniferous
Laevigatosporites
genus		Plantae : Tracheophyta : Laevigatosporites66 - 56 Ma
Paleocene
Tricolpites
genus		Plantae : Tracheophyta : Magnoliopsida : Tricolpites66 - 56 Ma
Paleocene
Syncolporites
genus		Plantae : Spermatophyta : Magnoliopsida : Santalales : Loranthaceae : Syncolporites66 - 56 Ma
Paleocene
Osmundacidites
genus		Plantae : Pteridophyta : Pteridopsida : Osmundacidites66 - 56 Ma
Paleocene
Gleicheniidites
genus		Plantae : Tracheophyta : Polypodiopsida : Gleicheniales : Gleicheniaceae : Gleicheniidites66 - 56 Ma
Paleocene
Reticuloidosporites
genus		Plantae : Pteridophyta : Pteridopsida : Reticuloidosporites66 - 56 Ma
Paleocene
Triatriopollenites
genus		Plantae : Tracheophyta : Magnoliopsida : Proteales : Triatriopollenites66 - 56 Ma
Paleocene
Fraxinoipollenites
genus		Plantae : Magnoliophyta : Fraxinoipollenites66 - 56 Ma
Paleocene
Buteogallus
genus		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Buteogallus0.126 - 0.0117 Ma
Pleistocene
Zenaida macroura
species		Animalia : Chordata : Aves : Columbiformes : Columbidae : Zenaida : Zenaida macroura0.126 - 0.0117 Ma
Pleistocene
Junco hyemalis
species		Animalia : Chordata : Aves : Passeriformes : Passerellidae : Junco : Junco hyemalis0.126 - 0.0117 Ma
Pleistocene
Aegolius acadicus
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Aegolius : Aegolius acadicus0.126 - 0.0117 Ma
Pleistocene
Polyborus plancus
species		Animalia : Chordata : Aves : Falconiformes : Falconidae : Caracara : Polyborus plancus0.126 - 0.0117 Ma
Pleistocene
Corvus brachyrhynchos
species		Animalia : Chordata : Aves : Passeriformes : Corvidae : Corvus : Corvus brachyrhynchos0.126 - 0.0117 Ma
Pleistocene
Gallinago gallinago
species		Animalia : Chordata : Aves : Charadriiformes : Scolopacidae : Gallinago : Gallinago gallinago0.126 - 0.0117 Ma
Pleistocene
Lanius ludovicianus
species		Animalia : Chordata : Aves : Passeriformes : Laniidae : Lanius : Lanius ludovicianus0.126 - 0.0117 Ma
Pleistocene
Dendragapus obscurus
species		Animalia : Chordata : Aves : Galliformes : Phasianidae : Dendragapus : Dendragapus obscurus0.126 - 0.0117 Ma
Pleistocene
Tricolpites parvus
species		Plantae : Tracheophyta : Magnoliopsida : Tricolpites : Tricolpites parvus66 - 56 Ma
Paleocene
Tricolpites mutabilis
species		Plantae : Tracheophyta : Magnoliopsida : Tricolpites : Tricolpites mutabilis66 - 56 Ma
Paleocene
Podiceps nigricollis
species		Animalia : Chordata : Aves : Podicipediformes : Podicipedidae : Podiceps : Podiceps nigricollis0.126 - 0.0117 Ma
Pleistocene
Eremophila alpestris
species		Animalia : Chordata : Aves : Passeriformes : Alaudidae : Eremophila : Eremophila alpestris0.126 - 0.0117 Ma
Pleistocene
Aythya collaris
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Aythya : Aythya collaris0.126 - 0.0117 Ma
Pleistocene
Mergus merganser
species		Animalia : Chordata : Aves : Anseriformes : Anatidae : Mergus : Mergus merganser0.126 - 0.0117 Ma
Pleistocene
Castanea intermedia
species		Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : Castanea : Castanea intermedia66 - 56 Ma
Paleocene
Yoderimyinae
subfamily		Animalia : Chordata : Mammalia : Rodentia : Eomyidae : Yoderimyinae37.2 - 33.9 Ma
Paleogene
Coccothraustes vespertinus
species		Animalia : Chordata : Aves : Passeriformes : Fringillidae : Coccothraustes : Coccothraustes vespertinus0.126 - 0.0117 Ma
Pleistocene
Circus cyaneus
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Circus : Circus cyaneus0.126 - 0.0117 Ma
Pleistocene
Porzana carolina
species		Animalia : Chordata : Aves : Gruiformes : Rallidae : Porzana : Porzana carolina0.126 - 0.0117 Ma
Pleistocene
Euphagus cyanocephalus
species		Animalia : Chordata : Aves : Passeriformes : Icteridae : Euphagus : Euphagus cyanocephalus0.126 - 0.0117 Ma
Pleistocene
Sturnella neglecta
species		Animalia : Chordata : Aves : Passeriformes : Icteridae : Sturnella : Sturnella neglecta0.126 - 0.0117 Ma
Pleistocene
Bubo scandiacus
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Bubo : Bubo scandiacus0.126 - 0.0117 Ma
Pleistocene
Numenius americanus
species		Animalia : Chordata : Aves : Charadriiformes : Scolopacidae : Numenius : Numenius americanus0.126 - 0.0117 Ma
Pleistocene
Buteo lagopus
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Buteo : Buteo lagopus0.126 - 0.0117 Ma
Pleistocene
Charadrius montanus
species		Animalia : Chordata : Aves : Charadriiformes : Charadriidae : Charadrius : Charadrius montanus0.126 - 0.0117 Ma
Pleistocene
Phalaenoptilus nuttallii
species		Animalia : Chordata : Aves : Caprimulgiformes : Caprimulgidae : Phalaenoptilus : Phalaenoptilus nuttallii0.126 - 0.0117 Ma
Pleistocene
Asio otus
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Asio : Asio otus0.126 - 0.0117 Ma
Pleistocene
Salpinctes obsoletus
species		Animalia : Chordata : Aves : Passeriformes : Troglodytidae : Salpinctes : Salpinctes obsoletus0.126 - 0.0117 Ma
Pleistocene
Aegolius funereus
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Aegolius : Aegolius funereus0.126 - 0.0117 Ma
Pleistocene
Surnia ulula
species		Animalia : Chordata : Aves : Strigiformes : Strigidae : Surnia : Surnia ulula0.126 - 0.0117 Ma
Pleistocene
Centrocercus urophasianus
species		Animalia : Chordata : Aves : Galliformes : Phasianidae : Centrocercus : Centrocercus urophasianus0.126 - 0.0117 Ma
Pleistocene
Nucifraga columbiana
species		Animalia : Chordata : Aves : Passeriformes : Corvidae : Nucifraga : Nucifraga columbiana0.126 - 0.0117 Ma
Pleistocene
Sialia
genus		Animalia : Chordata : Aves : Passeriformes : Turdidae : Sialia0.126 - 0.0117 Ma
Pleistocene
Spiza americana
species		Animalia : Chordata : Aves : Passeriformes : Cardinalidae : Spiza : Spiza americana0.126 - 0.0117 Ma
Pleistocene
Calamospiza melanocorys
species		Animalia : Chordata : Aves : Passeriformes : Emberizidae : Calamospiza : Calamospiza melanocorys0.126 - 0.0117 Ma
Pleistocene
Leucosticte arctoa
species		Animalia : Chordata : Aves : Passeriformes : Fringillidae : Leucosticte : Leucosticte arctoa0.126 - 0.0117 Ma
Pleistocene
Lagopus leucura
species		Animalia : Chordata : Aves : Galliformes : Phasianidae : Lagopus : Lagopus leucura0.126 - 0.0117 Ma
Pleistocene
Falco columbarius
species		Animalia : Chordata : Aves : Falconiformes : Falconidae : Falco : Falco columbarius0.126 - 0.0117 Ma
Pleistocene
Falco rusticolus
species		Animalia : Chordata : Aves : Falconiformes : Falconidae : Falco : Falco rusticolus0.126 - 0.0117 Ma
Pleistocene
Tachycineta bicolor
species		Animalia : Chordata : Aves : Passeriformes : Hirundinidae : Tachycineta : Tachycineta bicolor0.126 - 0.0117 Ma
Pleistocene
Pipilo chlorurus
species		Animalia : Chordata : Aves : Passeriformes : Passerellidae : Pipilo : Pipilo chlorurus0.126 - 0.0117 Ma
Pleistocene
Chordeiles minor
species		Animalia : Chordata : Aves : Caprimulgiformes : Caprimulgidae : Chordeiles : Chordeiles minor0.126 - 0.0117 Ma
Pleistocene
Buteo regalis
species		Animalia : Chordata : Aves : Accipitriformes : Accipitridae : Buteo : Buteo regalis0.126 - 0.0117 Ma
Pleistocene
Euphagus magnirostris
species		Animalia : Chordata : Aves : Passeriformes : Icteridae : Euphagus : Euphagus magnirostris0.126 - 0.0117 Ma
Pleistocene
Hesperornithoides miessleri
species		Animalia : Chordata : Saurischia : Avetheropoda : Troodontidae : Hesperornithoides : Hesperornithoides miessleri157.3 - 145 Ma
Jurassic
Fossil LocalitiesClick to show 28 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Converse_County,_Wyoming
Wikidata ID:Q484156
GeoNames ID:5821791

Localities in this Region

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USA

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North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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