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

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PhotosMapsSearch
04507330016875320614044.jpg
Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
06196140016875286306770.jpg
Petrified Wood Stump in the Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
08388330016875320623677.jpg
Tallest Petrified “Tree” in the Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
04507330016875320614044.jpg
Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
06480530016875284846382.jpg
Petrified Wood Stump in the Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
09264090016875286296211.jpg
Tallest Petrified “Tree” in the Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
04507330016875320614044.jpg
Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
04695690016875320634383.jpg
Petrified Wood Stump in the Dry Creek Petrified Forest near Buffalo, WY

Johnson County, Wyoming, USA
Type:
Largest Settlements:
PlacePopulation
Buffalo4,632 (2017)
Kaycee261 (2017)
Mindat Locality ID:
30941
Long-form identifier:
mindat:1:2:30941:8
GUID (UUID V4):
0afadb21-12ba-4573-a718-cb3b7d4a625b
Other Languages:
French:
comté de Johnson, Wyoming, États-Unis
German:
Johnson County, Wyoming, Vereinigte Staaten
Italian:
contea di Johnson, Wyoming, Stati Uniti d'America
Russian:
Джонсон, Вайоминг, Соединённые Штаты Америки
Simplified Chinese:
約翰遜縣, 怀俄明州, 美国
Spanish:
Condado de Johnson, Wyoming, Estados Unidos
Albanian:
Johnson County, Wyoming, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة جونسون , وايومنغ, الولايات المتحدة
Azeri:
Conson , Vayominq, Amerika Birləşmiş Ştatları
Basque:
Johnson konderria , Wyoming
Bavarian:
Johnson County, Wyoming, Vaoanigte Stootn
Bengali:
জনসন কাউণ্টি, ওয়াইয়োমিং, মার্কিন যুক্তরাষ্ট্র
Bishnupriya Manipuri:
জোন্সোন কাউন্টি, ৱাইওমিং, তিলপারাষ্ট্র
Bulgarian:
Джонсън, Уайоминг, Съединени американски щати
Cebuano:
Johnson County , Wyoming
Dutch:
Johnson County, Wyoming, Verenigde Staten
Estonian:
Johnsoni maakond, Wyoming, Ameerika Ühendriigid
Farsi/Persian:
شهرستان جانسون، وایومینگ, وایومینگ, ایالات متحده آمریکا
Hebrew:
מחוז ג'ונסון, ויומינג, ארצות הברית
Hungarian:
Johnson megye, Wyoming, Amerikai Egyesült Államok
Japanese:
ジョンソン郡, ワイオミング州, アメリカ合衆国
Latin:
Johnson Comitatus, Vyomina, Civitates Foederatae Americae
Low Saxon/Low German:
Johnson County, Wyoming, USA
Min Dong Chinese:
Johnson Gông, Wyoming
Minnan / Hokkien-Taiwanese:
Johnson Kūn
Norwegian:
Johnson County, Wyoming, USA
Polish:
Hrabstwo Johnson, Wyoming, Stany Zjednoczone
Portuguese:
Condado de Johnson, Wyoming, Estados Unidos
Romanian:
Comitatul Johnson, Wyoming, Statele Unite ale Americii
Sardinian:
contea de Johnson, Wyoming, Istados Unidos de Amèrica
Serbian:
Округ Џонсон , Вајоминг, Сједињене Америчке Државе
Serbo-Croatian:
Johnson County, Wyoming, Sjedinjene Američke Države
Swedish:
Johnson County, Wyoming, USA
Traditional Chinese:
約翰遜縣, 懷俄明州, 美國
Turkish:
Johnson, Wyoming, Amerika Birleşik Devletleri
Ukrainian:
Джонсон, Вайомінг, Сполучені Штати Америки
Urdu:
جانسن کاؤنٹی، وائیومنگ, وائیومنگ, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Johnson, Wyoming, Chủng Quốc Hoa Kỳ
Waray:
Condado han Johnson, Wyoming, Estados Unidos


No description has been added for this locality. Can you add one?

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

21 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:

Ammoniojarosite
Formula: (NH4)Fe3+3(SO4)2(OH)6
Reference: Canadian Mineralogist Vol. 20, pp.91-95 (1982)
Anorthite
Formula: Ca(Al2Si2O8)
Reference: AmMin 72:137
Bayleyite
Formula: Mg2(UO2)(CO3)3 · 18H2O
Reference: Handbook of Mineralogy
Beryl
Formula: Be3Al2(Si6O18)
Reference: http://www.stormme56.vcn.com/
Beryl var. Aquamarine
Formula: Be3Al2Si6O18
Reference: http://www.stormme56.vcn.com/
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chalcocite
Formula: Cu2S
Reference: Copper Handbook 1911
'Clinopyroxene Subgroup'
Reference: AmMin 72:137
Coffinite
Formula: U(SiO4) · nH2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Cristobalite
Formula: SiO2
Reference: AmMin 72:137
Cuprite
Formula: Cu2O
Reference: Copper Handbook 1911
Dorrite
Formula: Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)
Reference: American Mineralogist, Volume 73, pages 1440-1448, 1988
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: http://www.stormme56.vcn.com/
Gold
Formula: Au
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Gypsum
Formula: CaSO4 · 2H2O
Reference: Ref.:Gemstones and Other Unique Minerals and Rocks Of Wyoming (2000)
Gypsum var. Alabaster
Formula: CaSO4 · 2H2O
Reference: Ref.:Gemstones and Other Unique Minerals and Rocks Of Wyoming (2000)
Gypsum var. Selenite
Formula: CaSO4 · 2H2O
Reference: Canadian Mineralogist Vol. 20, pp.91-95 (1982)
Hematite
Formula: Fe2O3
Reference: AmMin 72:137
'Hornblende'
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Jarosite
Formula: KFe3+3(SO4)2(OH)6
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Magnesioferrite
Formula: MgFe3+2O4
Reference: AmMin 72:137
'Melilite Group'
Formula: Ca2M(XSiO7)
Reference: AmMin 72:137
Metatyuyamunite
Formula: Ca(UO2)2(VO4)2 · 3H2O
Reference: USGS: Geological Survey Circular 358
Pyrolusite
Formula: Mn4+O2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: AmMin 72:137
Tridymite
Formula: SiO2
Reference: AmMin 72:137
Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Uraninite
Formula: UO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Group 4 - Oxides and Hydroxides
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Cristobalite4.DA.15SiO2
Cuprite4.AA.10Cu2O
Hematite4.CB.05Fe2O3
Magnesioferrite4.BB.05MgFe3+2O4
Metatyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 3H2O
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
Tridymite4.DA.10SiO2
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Bayleyite5.ED.05Mg2(UO2)(CO3)3 · 18H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Ammoniojarosite7.BC.10(NH4)Fe3+3(SO4)2(OH)6
Gypsum7.CD.40CaSO4 · 2H2O
var. Alabaster7.CD.40CaSO4 · 2H2O
var. Selenite7.CD.40CaSO4 · 2H2O
Jarosite7.BC.10KFe3+3(SO4)2(OH)6
Group 9 - Silicates
Anorthite9.FA.35Ca(Al2Si2O8)
Beryl9.CJ.05Be3Al2(Si6O18)
var. Aquamarine9.CJ.05Be3Al2Si6O18
Coffinite9.AD.30U(SiO4) · nH2O
Dorrite9.DH.40Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36)
Unclassified Minerals, Rocks, etc.
'Clinopyroxene Subgroup'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Melilite Group'-Ca2M(XSiO7)

List of minerals for each chemical element

HHydrogen
H Gypsum var. AlabasterCaSO4 · 2H2O
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H CoffiniteU(SiO4) · nH2O
H JarositeKFe33+(SO4)2(OH)6
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
H MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
H Gypsum var. SeleniteCaSO4 · 2H2O
H Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
H BayleyiteMg2(UO2)(CO3)3 · 18H2O
H GypsumCaSO4 · 2H2O
BeBeryllium
Be Beryl var. AquamarineBe3Al2Si6O18
Be BerylBe3Al2(Si6O18)
CCarbon
C BayleyiteMg2(UO2)(CO3)3 · 18H2O
NNitrogen
N Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
OOxygen
O Melilite GroupCa2M(XSiO7)
O Beryl var. AquamarineBe3Al2Si6O18
O Garnet GroupX3Z2(SiO4)3
O Gypsum var. AlabasterCaSO4 · 2H2O
O CristobaliteSiO2
O TridymiteSiO2
O HematiteFe2O3
O QuartzSiO2
O AnorthiteCa(Al2Si2O8)
O MagnesioferriteMgFe23+O4
O DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O PyrolusiteMn4+O2
O CoffiniteU(SiO4) · nH2O
O JarositeKFe33+(SO4)2(OH)6
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
O UraniniteUO2
O CupriteCu2O
O MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
O Gypsum var. SeleniteCaSO4 · 2H2O
O Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
O BayleyiteMg2(UO2)(CO3)3 · 18H2O
O BerylBe3Al2(Si6O18)
O GypsumCaSO4 · 2H2O
MgMagnesium
Mg MagnesioferriteMgFe23+O4
Mg DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
Mg BayleyiteMg2(UO2)(CO3)3 · 18H2O
AlAluminium
Al Beryl var. AquamarineBe3Al2Si6O18
Al AnorthiteCa(Al2Si2O8)
Al DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
Al BerylBe3Al2(Si6O18)
SiSilicon
Si Melilite GroupCa2M(XSiO7)
Si Beryl var. AquamarineBe3Al2Si6O18
Si Garnet GroupX3Z2(SiO4)3
Si CristobaliteSiO2
Si TridymiteSiO2
Si QuartzSiO2
Si AnorthiteCa(Al2Si2O8)
Si DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
Si CoffiniteU(SiO4) · nH2O
Si BerylBe3Al2(Si6O18)
SSulfur
S Gypsum var. AlabasterCaSO4 · 2H2O
S JarositeKFe33+(SO4)2(OH)6
S ChalcociteCu2S
S Gypsum var. SeleniteCaSO4 · 2H2O
S Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
S GypsumCaSO4 · 2H2O
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
K JarositeKFe33+(SO4)2(OH)6
CaCalcium
Ca Melilite GroupCa2M(XSiO7)
Ca Gypsum var. AlabasterCaSO4 · 2H2O
Ca AnorthiteCa(Al2Si2O8)
Ca DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Ca MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
Ca Gypsum var. SeleniteCaSO4 · 2H2O
Ca GypsumCaSO4 · 2H2O
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
V MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
MnManganese
Mn PyrolusiteMn4+O2
FeIron
Fe HematiteFe2O3
Fe MagnesioferriteMgFe23+O4
Fe DorriteCa4(Mg3Fe93+)O4(Si3Al8Fe3+O36)
Fe JarositeKFe33+(SO4)2(OH)6
Fe Ammoniojarosite(NH4)Fe33+(SO4)2(OH)6
CuCopper
Cu CupriteCu2O
Cu ChalcociteCu2S
AuGold
Au GoldAu
UUranium
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U CoffiniteU(SiO4) · nH2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
U UraniniteUO2
U MetatyuyamuniteCa(UO2)2(VO4)2 · 3H2O
U BayleyiteMg2(UO2)(CO3)3 · 18H2O

Fossils

There are 27 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.

Occurrences518
Youngest Fossil Listed20.4 Ma (Miocene)
Oldest Fossil Listed501 Ma (Cambrian)
Stratigraphic UnitsClick here to view 17 stratigraphic units.
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Favosites
genus
Animalia : Cnidaria : Anthozoa : Favositidae : Favosites449.5 - 443.7 Ma
Paleozoic
Holophragma
genus
Animalia : Cnidaria : Anthozoa : Lykophyllidae : Holophragma449.5 - 443.7 Ma
Paleozoic
Streptelasma
genus
Animalia : Cnidaria : Anthozoa : Streptelasmatidae : Streptelasma449.5 - 443.7 Ma
Paleozoic
Bellerophon
genus
Animalia : Mollusca : Gastropoda : Bellerophontidae : Bellerophon318.1 - 311.45 Ma
Carboniferous
Straparollus
genus
Animalia : Mollusca : Gastropoda : Euomphalidae : Straparollus318.1 - 314.6 Ma
Carboniferous
Baylea
genus
Animalia : Mollusca : Gastropoda : Raphistomatidae : Baylea318.1 - 311.45 Ma
Carboniferous
Borestus
genus
Animalia : Mollusca : Gastropoda : Pleurotomariida : Phymatopleuridae : Borestus318.1 - 311.45 Ma
Carboniferous
Colpites
genus
Animalia : Mollusca : Gastropoda : Sinuopeidae : Colpites318.1 - 311.45 Ma
Carboniferous
Goniasma
genus
Animalia : Mollusca : Gastropoda : Goniasmatidae : Goniasma318.1 - 311.45 Ma
Carboniferous
Mourlonia
genus
Animalia : Mollusca : Gastropoda : Pleurotomariida : Eotomariidae : Mourlonia318.1 - 314.6 Ma
Carboniferous
Shansiella
genus
Animalia : Mollusca : Gastropoda : Pleurotomariida : Portlockiellidae : Shansiella318.1 - 311.45 Ma
Carboniferous
Donaldina
genus
Animalia : Mollusca : Gastropoda : Streptacididae : Donaldina318.1 - 311.45 Ma
Carboniferous
Cephalopoda
class
Animalia : Mollusca : Cephalopoda460.9 - 449.5 Ma
Ordovician
Nuculopsis
genus
Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Nuculopsis318.1 - 314.6 Ma
Carboniferous
Paleyoldia
genus
Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : Paleyoldia318.1 - 314.6 Ma
Carboniferous
Aviculopecten
genus
Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : Aviculopecten318.1 - 314.6 Ma
Carboniferous
Pernopecten
genus
Animalia : Mollusca : Bivalvia : Pectinida : Entoliidae : Pernopecten318.1 - 311.45 Ma
Carboniferous
Pseudomonotis
genus
Animalia : Mollusca : Bivalvia : Pectinida : Pseudomonotidae : Pseudomonotis318.1 - 311.45 Ma
Carboniferous
Edmondia
genus
Animalia : Mollusca : Bivalvia : Adapedonta : Edmondiidae : Edmondia318.1 - 311.45 Ma
Carboniferous
Permophorus
genus
Animalia : Mollusca : Bivalvia : Venerida : Kalenteridae : Permophorus318.1 - 311.45 Ma
Carboniferous
Ptychopariida
order
Animalia : Arthropoda : Trilobita : Ptychopariida501 - 485.4 Ma
Cambrian
Alokistocare
genus
Animalia : Arthropoda : Trilobita : Ptychopariida : Alokistocaridae : Alokistocare501 - 485.4 Ma
Cambrian
Bolaspidella
genus
Animalia : Arthropoda : Trilobita : Ptychopariida : Menomoniidae : Bolaspidella501 - 485.4 Ma
Cambrian
Rawlinsella
genus
Animalia : Arthropoda : Trilobita : Ptychopariida : Bolaspididae : Rawlinsella501 - 485.4 Ma
Cambrian
Paladin
genus
Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Paladin318.1 - 311.45 Ma
Carboniferous
Bryozoa
phylum
Animalia : Bryozoa318.1 - 311.45 Ma
Carboniferous
Batostoma
genus
Animalia : Bryozoa : Stenolaemata : Trepostomatida : Trematoporidae : Batostoma449.5 - 443.7 Ma
Paleozoic
Angulotreta
genus
Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Angulotreta501 - 485.4 Ma
Cambrian
Prototreta
genus
Animalia : Brachiopoda : Lingulata : Acrotretida : Acrotretidae : Prototreta501 - 485.4 Ma
Cambrian
Platystrophia
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Platystrophiidae : Platystrophia449.5 - 443.7 Ma
Paleozoic
Antiquatonia
genus
Animalia : Brachiopoda : Strophomenata : Productida : Productidae : Antiquatonia318.1 - 314.6 Ma
Carboniferous
Juresania
genus
Animalia : Brachiopoda : Strophomenata : Productida : Echinoconchidae : Juresania318.1 - 311.45 Ma
Carboniferous
Linoproductus
genus
Animalia : Brachiopoda : Strophomenata : Productida : Linoproductidae : Linoproductus318.1 - 314.6 Ma
Carboniferous
Orthotetes
genus
Animalia : Brachiopoda : Strophomenata : Orthotetida : Orthotetidae : Orthotetes318.1 - 314.6 Ma
Carboniferous
Pulsia
genus
Animalia : Brachiopoda : Strophomenata : Orthotetida : Pulsiidae : Pulsia318.1 - 311.45 Ma
Carboniferous
Anthracospirifer
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spiriferidae : Anthracospirifer318.1 - 311.45 Ma
Carboniferous
Cyclospira
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Cyclospiridae : Cyclospira449.5 - 443.7 Ma
Paleozoic
Zygospira
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Anazygidae : Zygospira449.5 - 443.7 Ma
Paleozoic
Bryantodina
genus
Animalia : Chordata : Conodonta : Conodontophorida : Bryantodina460.9 - 443.7 Ma
Paleozoic
Chirognathus
genus
Animalia : Chordata : Conodonta : Chirognathus460.9 - 443.7 Ma
Paleozoic
Coleodus
genus
Animalia : Chordata : Conodonta : Conodontophorida : Coleodus460.9 - 443.7 Ma
Paleozoic
Cordylodus
genus
Animalia : Chordata : Conodonta : Conodontophorida : Proconodontidae : Cordylodus460.9 - 443.7 Ma
Paleozoic
Erismodus
genus
Animalia : Chordata : Conodonta : Erismodus460.9 - 443.7 Ma
Paleozoic
Neocoleodus
genus
Animalia : Chordata : Conodonta : Conodontophorida : Neocoleodus460.9 - 443.7 Ma
Paleozoic
Oistodus
genus
Animalia : Chordata : Conodonta : Conodontophorida : Oistodus460.9 - 443.7 Ma
Paleozoic
Oulodus
genus
Animalia : Chordata : Hibbardellidae : Oulodus457.5 - 452.5 Ma
Late/Upper Ordovician
Paltodus
genus
Animalia : Chordata : Conodonta : Protopanderodontida : Paltodus460.9 - 443.7 Ma
Paleozoic
Plectodina
genus
Animalia : Chordata : Plectodinidae : Plectodina457.5 - 452.5 Ma
Late/Upper Ordovician
Stereoconus
genus
Animalia : Chordata : Conodonta : Conodontophorida : Stereoconus457.5 - 452.5 Ma
Late/Upper Ordovician
Theropoda
unranked clade
Animalia : Chordata : Saurischia : Theropoda157.3 - 145 Ma
Jurassic
Elaphrosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Ornithomimidae : Elaphrosaurus157.3 - 152.1 Ma
Jurassic
Allosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Allosauridae : Allosaurus157.3 - 145 Ma
Jurassic
Haplocanthosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Haplocanthosaurus157.3 - 145 Ma
Jurassic
Diplodocidae
family
Animalia : Chordata : Reptilia : Dinosauria : Diplodocidae157.3 - 152.1 Ma
Jurassic
Apatosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Diplodocidae : Apatosaurus157.3 - 145 Ma
Jurassic
Barosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Diplodocidae : Barosaurus157.3 - 152.1 Ma
Jurassic
Diplodocus
genus
Animalia : Chordata : Reptilia : Dinosauria : Diplodocidae : Diplodocus157.3 - 145 Ma
Jurassic
Camarasaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Camarasauridae : Camarasaurus157.3 - 145 Ma
Jurassic
Camptosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Camptosaurus157.3 - 152.1 Ma
Jurassic
Stegosaurus
genus
Animalia : Chordata : Reptilia : Dinosauria : Stegosauridae : Stegosaurus157.3 - 152.1 Ma
Jurassic
Ceratopsia
unranked clade
Animalia : Chordata : Ornithischia : Ceratopsia72.1 - 66 Ma
Late/Upper Cretaceous
Mimoperadectes
genus
Animalia : Chordata : Mammalia : Didelphimorphia : Didelphidae : Mimoperadectes55.8 - 50.3 Ma
Eocene
Pantolestidae
family
Animalia : Chordata : Mammalia : Pantolestidae55.8 - 50.3 Ma
Eocene
Palaeosinopa
genus
Animalia : Chordata : Mammalia : Pantolestidae : Palaeosinopa55.8 - 50.3 Ma
Eocene
Phenacolemur
genus
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Phenacolemur55.8 - 50.3 Ma
Eocene
Simpsonlemur
genus
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Simpsonlemur55.8 - 50.3 Ma
Eocene
Insectivora
order
Animalia : Chordata : Mammalia : Insectivora55.8 - 50.3 Ma
Eocene
Erinaceidae
family
Animalia : Chordata : Mammalia : Erinaceomorpha : Erinaceidae55.8 - 50.3 Ma
Eocene
Nyctitheriidae
family
Animalia : Chordata : Mammalia : Soricomorpha : Nyctitheriidae55.8 - 50.3 Ma
Eocene
Coryphodon
genus
Animalia : Chordata : Mammalia : Coryphodontidae : Coryphodon55.8 - 50.3 Ma
Eocene
Niptomomys
genus
Animalia : Chordata : Mammalia : Primates : Microsyopidae : Niptomomys55.8 - 50.3 Ma
Eocene
Omomyidae
family
Animalia : Chordata : Mammalia : Primates : Omomyidae55.8 - 50.3 Ma
Eocene
Tetonius
genus
Animalia : Chordata : Mammalia : Primates : Anaptomorphidae : Tetonius55.8 - 50.3 Ma
Eocene
Didymictis
genus
Animalia : Chordata : Mammalia : Carnivora : Viverravidae : Didymictis55.8 - 50.3 Ma
Eocene
Rodentia
order
Animalia : Chordata : Mammalia : Rodentia55.8 - 50.3 Ma
Eocene
Paramys
genus
Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Paramys55.8 - 50.3 Ma
Eocene
Sciuravus
genus
Animalia : Chordata : Mammalia : Rodentia : Sciuravidae : Sciuravus55.8 - 50.3 Ma
Eocene
Geomyidae
family
Animalia : Chordata : Mammalia : Rodentia : Geomyidae30.8 - 20.43 Ma
Cenozoic
Ziamys
genus
Animalia : Chordata : Mammalia : Rodentia : Geomyidae : Ziamys30.8 - 20.43 Ma
Cenozoic
Desmatolagus
genus
Animalia : Chordata : Mammalia : Lagomorpha : Ochotonidae : Desmatolagus30.8 - 20.43 Ma
Cenozoic
Apheliscus
genus
Animalia : Chordata : Mammalia : Mioclaenidae : Apheliscus55.8 - 50.3 Ma
Eocene
Hyopsodus
genus
Animalia : Chordata : Mammalia : Hyopsodontidae : Hyopsodus55.8 - 50.3 Ma
Eocene
Phenacodus
genus
Animalia : Chordata : Mammalia : Phenacodontidae : Phenacodus55.8 - 50.3 Ma
Eocene
Diacodexis
genus
Animalia : Chordata : Mammalia : Artiodactyla : Dichobunidae : Diacodexis55.8 - 50.3 Ma
Eocene
Oreodontoides
genus
Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Oreodontoides30.8 - 20.43 Ma
Cenozoic
Equidae
family
Animalia : Chordata : Mammalia : Perissodactyla : Equidae37.2 - 33.9 Ma
Paleogene
Hyracotherium
genus
Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Hyracotherium55.8 - 50.3 Ma
Eocene
Brontotheriidae
family
Animalia : Chordata : Mammalia : Perissodactyla : Brontotheriidae37.2 - 33.9 Ma
Paleogene
Arfia zele
species
Animalia : Chordata : Mammalia : Hyaenodontidae : Arfia : Arfia zele55.8 - 50.3 Ma
Eocene
Cantius torresi
species
Animalia : Chordata : Mammalia : Primates : Notharctidae : Cantius : Cantius torresi55.8 - 50.3 Ma
Eocene
Chriacus gallinae
species
Animalia : Chordata : Mammalia : Oxyclaenidae : Chriacus : Chriacus gallinae55.8 - 50.3 Ma
Eocene
Coryphodon eocaenus
species
Animalia : Chordata : Mammalia : Coryphodontidae : Coryphodon : Coryphodon eocaenus55.8 - 50.3 Ma
Eocene
Didelphodus absarokae
species
Animalia : Chordata : Mammalia : Hyaenodonta : Didelphodus : Didelphodus absarokae55.8 - 50.3 Ma
Eocene
Diacodexis primus
species
Animalia : Chordata : Mammalia : Artiodactyla : Dichobunidae : Diacodexis : Diacodexis primus55.8 - 50.3 Ma
Eocene
Prodiacodon tauricinerei
species
Animalia : Chordata : Mammalia : Leptictidae : Prodiacodon : Prodiacodon tauricinerei55.8 - 50.3 Ma
Eocene
Macrocranion nitens
species
Animalia : Chordata : Mammalia : Macroscelidea : Amphilemuridae : Macrocranion : Macrocranion nitens55.8 - 50.3 Ma
Eocene
Esthonyx spatularius
species
Animalia : Chordata : Mammalia : Tillotheriidae : Esthonyx : Esthonyx spatularius55.8 - 50.3 Ma
Eocene
Neoliotomus ultimus
species
Animalia : Chordata : Mammalia : Multituberculata : Neoliotomus : Neoliotomus ultimus55.8 - 50.3 Ma
Eocene
Haplomylus bozemanensis
species
Animalia : Chordata : Mammalia : Hyopsodontidae : Haplomylus : Haplomylus bozemanensis55.8 - 50.3 Ma
Eocene
Haplomylus speirianus
species
Animalia : Chordata : Mammalia : Macroscelidea : Apheliscidae : Haplomylus : Haplomylus speirianus55.8 - 50.3 Ma
Eocene
Sifrhippus grangeri
species
Animalia : Chordata : Mammalia : Perissodactyla : Equidae : Sifrhippus : Sifrhippus grangeri55.8 - 50.3 Ma
Eocene
Phenacodus vortmani
species
Animalia : Chordata : Mammalia : Ungulata : Phenacodontidae : Phenacodus : Phenacodus vortmani55.8 - 50.3 Ma
Eocene
Ignacius graybullianus
species
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Ignacius : Ignacius graybullianus55.8 - 50.3 Ma
Eocene
Koniaryctes paulus
species
Animalia : Chordata : Mammalia : Apternodontidae : Koniaryctes : Koniaryctes paulus55.8 - 50.3 Ma
Eocene
Leipsanolestes siegfriedti
species
Animalia : Chordata : Mammalia : Erinaceomorpha : Creotarsidae : Leipsanolestes : Leipsanolestes siegfriedti55.8 - 50.3 Ma
Eocene
Miacis exiguus
species
Animalia : Chordata : Mammalia : Carnivora : Miacidae : Miacis : Miacis exiguus55.8 - 50.3 Ma
Eocene
Dryomomys willwoodensis
species
Animalia : Chordata : Mammalia : Primates : Micromomyidae : Dryomomys : Dryomomys willwoodensis55.8 - 50.3 Ma
Eocene
Arctodontomys wilsoni
species
Animalia : Chordata : Mammalia : Primates : Microsyopidae : Arctodontomys : Arctodontomys wilsoni55.8 - 50.3 Ma
Eocene
Ectocion osbornianus
species
Animalia : Chordata : Mammalia : Ungulata : Phenacodontidae : Ectocion : Ectocion osbornianus55.8 - 50.3 Ma
Eocene
Dipsalidictis transiens
species
Oxyaenidae : Dipsalidictis : Dipsalidictis transiens55.8 - 50.3 Ma
Eocene
Miotylopus gibbi
species
Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Miotylopus : Miotylopus gibbi30.8 - 20.43 Ma
Cenozoic
Palaeoryctes punctatus
species
Animalia : Chordata : Mammalia : Palaeoryctidae : Palaeoryctes : Palaeoryctes punctatus55.8 - 50.3 Ma
Eocene
Palaeosinopa incerta
species
Animalia : Chordata : Mammalia : Pantolestidae : Palaeosinopa : Palaeosinopa incerta55.8 - 50.3 Ma
Eocene
Palaeosinopa lutreola
species
Animalia : Chordata : Mammalia : Pantolestidae : Palaeosinopa : Palaeosinopa lutreola55.8 - 50.3 Ma
Eocene
Paramys copei
species
Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Paramys : Paramys copei55.8 - 50.3 Ma
Eocene
Parectypodus lunatus
species
Animalia : Chordata : Mammalia : Ptilodontidae : Parectypodus : Parectypodus lunatus55.8 - 50.3 Ma
Eocene
Ectypodus tardus
species
Animalia : Chordata : Mammalia : Multituberculata : Neoplagiaulacidae : Ectypodus : Ectypodus tardus55.8 - 50.3 Ma
Eocene
Cantius frugivorus
species
Animalia : Chordata : Mammalia : Primates : Notharctidae : Cantius : Cantius frugivorus55.8 - 50.3 Ma
Eocene
Cantius mckennai
species
Animalia : Chordata : Mammalia : Primates : Notharctidae : Cantius : Cantius mckennai55.8 - 50.3 Ma
Eocene
Cantius ralstoni
species
Animalia : Chordata : Mammalia : Primates : Notharctidae : Cantius : Cantius ralstoni55.8 - 50.3 Ma
Eocene
Peradectes protinnominatus
species
Animalia : Chordata : Mammalia : Didelphimorphia : Didelphidae : Peradectes : Peradectes protinnominatus55.8 - 50.3 Ma
Eocene
Copecion brachypternus
species
Animalia : Chordata : Mammalia : Ungulata : Phenacodontidae : Copecion : Copecion brachypternus55.8 - 50.3 Ma
Eocene
Phenacodus intermedius
species
Animalia : Chordata : Mammalia : Phenacodontidae : Phenacodus : Phenacodus intermedius55.8 - 50.3 Ma
Eocene
Phenacodus trilobatus
species
Animalia : Chordata : Mammalia : Phenacodontidae : Phenacodus : Phenacodus trilobatus55.8 - 50.3 Ma
Eocene
Phenacolemur praecox
species
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Phenacolemur : Phenacolemur praecox55.8 - 50.3 Ma
Eocene
Phenacolemur simonsi
species
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Phenacolemur : Phenacolemur simonsi55.8 - 50.3 Ma
Eocene
Prolimnocyon atavus
species
Animalia : Chordata : Mammalia : Hyaenodontidae : Prolimnocyon : Prolimnocyon atavus55.8 - 50.3 Ma
Eocene
Prolimnocyon haematus
species
Animalia : Chordata : Mammalia : Hyaenodontidae : Prolimnocyon : Prolimnocyon haematus55.8 - 50.3 Ma
Eocene
Prototomus robustus
species
Animalia : Chordata : Mammalia : Hyaenodonta : Hyaenodontidae : Prototomus : Prototomus robustus55.8 - 50.3 Ma
Eocene
Proscalops secundus
species
Animalia : Chordata : Mammalia : Proscalopidae : Proscalops : Proscalops secundus30.8 - 20.43 Ma
Cenozoic
Prototomus martis
species
Animalia : Chordata : Mammalia : Hyaenodontidae : Prototomus : Prototomus martis55.8 - 50.3 Ma
Eocene
Pulverflumen magnificum
species
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Pulverflumen : Pulverflumen magnificum55.8 - 50.3 Ma
Eocene
Galecyon mordax
species
Animalia : Chordata : Mammalia : Hyaenodonta : Hyaenodontidae : Galecyon : Galecyon mordax55.8 - 50.3 Ma
Eocene
Homogalax protapirinus
species
Animalia : Chordata : Mammalia : Perissodactyla : Homogalax : Homogalax protapirinus55.8 - 50.3 Ma
Eocene
Talpavoides dartoni
species
Animalia : Chordata : Mammalia : Talpavoides : Talpavoides dartoni55.8 - 50.3 Ma
Eocene
Apatemys chardini
species
Animalia : Chordata : Mammalia : Insectivora : Apatemyidae : Apatemys : Apatemys chardini55.8 - 50.3 Ma
Eocene
Tinimomys graybulliensis
species
Animalia : Chordata : Mammalia : Primates : Micromomyidae : Tinimomys : Tinimomys graybulliensis55.8 - 50.3 Ma
Eocene
Viverravus acutus
species
Animalia : Chordata : Mammalia : Carnivora : Viverravidae : Viverravus : Viverravus acutus55.8 - 50.3 Ma
Eocene
Hamamelidaceae
family
Plantae : Tracheophyta : Magnoliopsida : Saxifragales : Hamamelidaceae55.8 - 50.3 Ma
Eocene
Dryosaurus altus
species
Animalia : Chordata : Ornithischia : Dryosauridae : Dryosaurus : Dryosaurus altus157.3 - 145 Ma
Jurassic
Platanus
genus
Plantae : Tracheophyta : Magnoliopsida : Proteales : Platanaceae : Platanus55.8 - 50.3 Ma
Eocene
Nordenskioldia borealis
species
Nordenskioldia : Nordenskioldia borealis66 - 56 Ma
Paleocene
Juglandaceae
family
Plantae : Tracheophyta : Magnoliopsida : Fagales : Juglandaceae55.8 - 50.3 Ma
Eocene
Alnus
genus
Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : Alnus55.8 - 50.3 Ma
Eocene
Betulaceae
family
Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae55.8 - 50.3 Ma
Eocene
Quercus
genus
Plantae : Tracheophyta : Magnoliopsida : Fagales : Fagaceae : Quercus55.8 - 50.3 Ma
Eocene
Cercidiphyllum
genus
Plantae : Tracheophyta : Magnoliopsida : Saxifragales : Cercidiphyllaceae : Cercidiphyllum66 - 56 Ma
Paleocene
Sapindaceae
family
Plantae : Tracheophyta : Magnoliopsida : Sapindales : Sapindaceae55.8 - 50.3 Ma
Eocene
Calycites
genus
Plantae : Tracheophyta : Magnoliopsida : Asterales : Asteraceae : Calycites55.8 - 50.3 Ma
Eocene
Equisetum
genus
Plantae : Tracheophyta : Polypodiopsida : Equisetales : Equisetaceae : Equisetum55.8 - 50.3 Ma
Eocene
Magnoliopsida
class
Plantae : Tracheophyta : Magnoliopsida55.8 - 50.3 Ma
Eocene
Lygodium kaulfussi
species
Plantae : Tracheophyta : Polypodiopsida : Schizaeales : Lygodiaceae : Lygodium : Lygodium kaulfussi55.8 - 50.3 Ma
Eocene
Salvinia preauriculata
species
Plantae : Tracheophyta : Polypodiopsida : Salviniales : Salviniaceae : Salvinia : Salvinia preauriculata55.8 - 50.3 Ma
Eocene
Glyptostrobus europaeus
species
Plantae : Tracheophyta : Pinopsida : Pinales : Cupressaceae : Glyptostrobus : Glyptostrobus europaeus55.8 - 50.3 Ma
Eocene
Zingiberopsis isonervosa
species
Plantae : Tracheophyta : Liliopsida : Zingiberales : Zingiberaceae : Zingiberopsis : Zingiberopsis isonervosa55.8 - 50.3 Ma
Eocene
Betula
genus
Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : Betula66 - 56 Ma
Paleocene
Cercidiphyllum genetrix
species
Plantae : Spermatophyta : Magnoliopsida : Saxifragales : Cercidiphyllaceae : Cercidiphyllum : Cercidiphyllum genetrix55.8 - 50.3 Ma
Eocene
Menispermites parvareolatus
species
Plantae : Tracheophyta : Magnoliopsida : Ranunculales : Menispermaceae : Menispermites : Menispermites parvareolatus55.8 - 50.3 Ma
Eocene
Averrhoites affinis
species
Plantae : Spermatophyta : Magnoliopsida : Sapindales : Oxalidaceae : Averrhoites : Averrhoites affinis55.8 - 50.3 Ma
Eocene
Meliosma longifolia
species
Plantae : Spermatophyta : Magnoliopsida : Ranunculales : Sabiaceae : Meliosma : Meliosma longifolia55.8 - 50.3 Ma
Eocene
Penosphyllum cordatum
species
Plantae : Spermatophyta : Magnoliopsida : Malvales : Sterculiaceae : Penosphyllum : Penosphyllum cordatum55.8 - 50.3 Ma
Eocene
Ampelopsis acerifolia
species
Plantae : Tracheophyta : Magnoliopsida : Vitales : Vitaceae : Ampelopsis : Ampelopsis acerifolia66 - 56 Ma
Paleocene
Dombeya novimundi
species
Plantae : Tracheophyta : Magnoliopsida : Malvales : Malvaceae : Dombeya : Dombeya novimundi55.8 - 50.3 Ma
Eocene
Alismataceae
family
Plantae : Tracheophyta : Liliopsida : Alismatales : Alismataceae55.8 - 50.3 Ma
Eocene
Populus
genus
Plantae : Tracheophyta : Magnoliopsida : Malpighiales : Salicaceae : Populus55.8 - 50.3 Ma
Eocene
Ginkgo adiantoides
species
Plantae : Tracheophyta : Ginkgoopsida : Ginkgoales : Ginkgoaceae : Ginkgo : Ginkgo adiantoides55.8 - 50.3 Ma
Eocene
Platanus raynoldsii
species
Plantae : Tracheophyta : Magnoliopsida : Proteales : Platanaceae : Platanus : Platanus raynoldsii55.8 - 50.3 Ma
Eocene
Miacinae
subfamily
Animalia : Chordata : Mammalia : Carnivora : Miacidae : Miacinae55.8 - 50.3 Ma
Eocene
Maclurina manitobensis
species
Animalia : Mollusca : Gastropoda : Euomphalina : Macluritidae : Maclurina : Maclurina manitobensis460.9 - 449.5 Ma
Ordovician
Glyptosaurinae
subfamily
Animalia : Chordata : Reptilia : Squamata : Anguidae : Glyptosaurinae55.8 - 50.3 Ma
Eocene
Murchisonioidea
superfamily
Animalia : Mollusca : Gastropoda : Murchisoniina : Murchisonioidea318.1 - 311.45 Ma
Carboniferous
Galeamopus hayi
species
Animalia : Chordata : Saurischia : Diplodocidae : Galeamopus : Galeamopus hayi157.3 - 145 Ma
Jurassic
Hesperosaurus mjosi
species
Animalia : Chordata : Ornithischia : Stegosauridae : Hesperosaurus : Hesperosaurus mjosi157.3 - 152.1 Ma
Jurassic
Waagenella crassus
species
Animalia : Mollusca : Gastropoda : Bellerophontida : Bellerophontidae : Waagenella : Waagenella crassus318.1 - 311.45 Ma
Carboniferous
Euomphalus plummeri
species
Animalia : Mollusca : Gastropoda : Euomphalina : Euomphalidae : Euomphalus : Euomphalus plummeri318.1 - 311.45 Ma
Carboniferous
Sceptropora facula
species
Animalia : Bryozoa : Stenolaemata : Cryptostomida : Arthrostylidae : Sceptropora : Sceptropora facula449.5 - 443.7 Ma
Paleozoic
Acodus
genus
Animalia : Chordata : Acodus460.9 - 443.7 Ma
Paleozoic
Artiodactyla
order
Animalia : Chordata : Mammalia : Artiodactyla37.2 - 33.9 Ma
Paleogene
Astartella concentrica
species
Animalia : Mollusca : Bivalvia : Carditida : Astartidae : Astartella : Astartella concentrica318.1 - 311.45 Ma
Carboniferous
Amphiscapha calix
species
Animalia : Mollusca : Gastropoda : Euomphalina : Euomphalidae : Amphiscapha : Amphiscapha calix326.4 - 318.1 Ma
Carboniferous
Phenacolemurinae
subfamily
Animalia : Chordata : Mammalia : Primates : Paromomyidae : Phenacolemurinae55.8 - 50.3 Ma
Eocene
Hiscobeccus gigas
species
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Hiscobeccus : Hiscobeccus gigas449.5 - 443.7 Ma
Paleozoic
Hypsiptycha anticostiensis
species
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Hypsiptycha : Hypsiptycha anticostiensis449.5 - 443.7 Ma
Paleozoic
Archeognathus
genus
Animalia : Chordata : Conodonta : Archaeognathidae : Archeognathus457.5 - 452.5 Ma
Late/Upper Ordovician
Palmocarpon
genus
Plantae : Angiospermae : Arecales : Palmae : Palmocarpon66 - 56 Ma
Paleocene
Metoicoceras geslinianum
species
Animalia : Mollusca : Cephalopoda : Ammonitida : Acanthoceratidae : Metoicoceras : Metoicoceras geslinianum99.6 - 93.5 Ma
Late/Upper Cretaceous
Astraspis desiderata
species
Animalia : Chordata : Astraspididae : Astraspis : Astraspis desiderata449.5 - 443.7 Ma
Paleozoic
Baptanodon robustus
species
Animalia : Chordata : Reptilia : Ophthalmosauridae : Baptanodon : Baptanodon robustus168.3 - 157.3 Ma
Jurassic
Hyperodapedon sanjuanensis
species
Animalia : Chordata : Reptilia : Eosuchia : Rhynchosauridae : Hyperodapedon : Hyperodapedon sanjuanensis237 - 228 Ma
Late/Upper Triassic
Schizodus alpinus
species
Animalia : Mollusca : Bivalvia : Trigoniida : Schizodidae : Schizodus : Schizodus alpinus318.1 - 314.6 Ma
Carboniferous
Lonchodus
genus
Animalia : Chordata : Conodonta : Conodontophorida : Prioniodidae : Lonchodus460.9 - 443.7 Ma
Paleozoic
Cranea wyomingensis
species
Plantae : Tracheophyta : Magnoliopsida : Fagales : Betulaceae : Cranea : Cranea wyomingensis66 - 33.9 Ma
Paleogene
Hesperorthis pyramidalis
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : Hesperorthis : Hesperorthis pyramidalis449.5 - 443.7 Ma
Paleozoic
Juglandicarya
genus
Juglandicarya66 - 56 Ma
Paleocene
Phoebe
genus
Phoebe55.8 - 50.3 Ma
Eocene
Eriptychius americanus
species
Animalia : Chordata : Pteraspidomorpha : Astraspidiformes : Eriptychius : Eriptychius americanus449.5 - 443.7 Ma
Paleozoic
Nasutimena fluctuosa
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Nasutimena : Nasutimena fluctuosa449.5 - 443.7 Ma
Paleozoic
Megamyonia nitens
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Megamyonia : Megamyonia nitens449.5 - 443.7 Ma
Paleozoic
Gnamptorhynchos prayi
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Platystrophiidae : Gnamptorhynchos : Gnamptorhynchos prayi449.5 - 443.7 Ma
Paleozoic
Isocrinus wyomingensis
species
Animalia : Echinodermata : Crinoidea : Isocrinida : Isocrinidae : Isocrinus : Isocrinus wyomingensis168.3 - 166.1 Ma
Middle Jurassic
Dinorthis occidentalis
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Dinorthis : Dinorthis occidentalis449.5 - 443.7 Ma
Paleozoic
Rhynchotrema iowense
species
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Rhynchotrema : Rhynchotrema iowense449.5 - 443.7 Ma
Paleozoic
Diceromyonia storeya
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Platyorthidae : Diceromyonia : Diceromyonia storeya449.5 - 443.7 Ma
Paleozoic
Plaesiomys rockymontana
species
Animalia : Brachiopoda : Rhynchonellata : Orthida : Plaesiomyidae : Plaesiomys : Plaesiomys rockymontana449.5 - 443.7 Ma
Paleozoic
Rugomena planocorrugata
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Rugomena : Rugomena planocorrugata449.5 - 443.7 Ma
Paleozoic
Belodus
genus
Belodus460.9 - 443.7 Ma
Paleozoic
Eubostrychoceras matsumotoi
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Nostoceratidae : Eubostrychoceras : Eubostrychoceras matsumotoi93.5 - 89.3 Ma
Late/Upper Cretaceous
Neocardioceras uptonense
species
Animalia : Mollusca : Cephalopoda : Ammonoidea : Acanthoceratidae : Neocardioceras : Neocardioceras uptonense99.6 - 93.5 Ma
Late/Upper Cretaceous
Leguminosites coloradensis
species
Plantae : Tracheophyta : Magnoliopsida : Fabales : Fabaceae : Leguminosites : Leguminosites coloradensis66 - 56 Ma
Paleocene
Panderodus equicostatus
species
Animalia : Chordata : Conodonta : Panderodontida : Panderodontidae : Panderodus : Panderodus equicostatus457.5 - 452.5 Ma
Late/Upper Ordovician
Drepanoistodus suberectus
species
Animalia : Chordata : Conodonta : Protopanderodontida : Drepanoistodus : Drepanoistodus suberectus457.5 - 452.5 Ma
Late/Upper Ordovician
Eochonetes maearum
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Sowerbyellidae : Eochonetes : Eochonetes maearum449.5 - 443.7 Ma
Paleozoic
Promylagaulinae
subfamily
Animalia : Chordata : Mammalia : Rodentia : Mylagaulidae : Promylagaulinae30.8 - 20.43 Ma
Cenozoic
Oepikina pergibbosa
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophomenidae : Oepikina : Oepikina pergibbosa449.5 - 443.7 Ma
Paleozoic
Erismodus gracilis
species
Animalia : Chordata : Conodonta : Erismodus : Erismodus gracilis460.9 - 443.7 Ma
Paleozoic
Erismodus asymmetricus
species
Animalia : Chordata : Conodonta : Erismodus : Erismodus asymmetricus460.9 - 443.7 Ma
Paleozoic
Erismodus typus
species
Animalia : Chordata : Conodonta : Erismodus : Erismodus typus460.9 - 443.7 Ma
Paleozoic
Fossil LocalitiesClick to show 27 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Johnson_County,_Wyoming
Wikidata ID:Q484268
GeoNames ID:5828957

Localities in this Region

Other Regions, Features and Areas that Intersect

North America
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.
 
Mineral and/or Locality  
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