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Cook County, Illinois, USAi
Regional Level Types
Cook CountyCounty
IllinoisState
USACountry

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PhotosMapsSearch
Type:
Largest Settlements:
PlacePopulation
Chicago2,720,546 (2017)
West Town86,429 (2017)
Near North Side85,711 (2017)
Cicero83,886 (2017)
Belmont Cragin79,159 (2017)
Arlington Heights75,926 (2017)
Mindat Locality ID:
168994
Long-form identifier:
mindat:1:2:168994:8
GUID (UUID V4):
5bb579a7-f8cb-4ad0-ae68-135f56d933a8
Other Languages:
French:
Comté de Cook, Illinois, États-Unis
German:
Cook County, Illinois, Vereinigte Staaten
Italian:
Contea di Cook, Illinois, Stati Uniti d'America
Russian:
Кук, Иллинойс, Соединённые Штаты Америки
Simplified Chinese:
庫克縣, 伊利诺伊州, 美国
Spanish:
Condado de Cook, Illinois, Estados Unidos
Albanian:
Cook County, Illinois, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة كوك, إلينوي, الولايات المتحدة
Armenian:
Կուկ շրջան, Իլինոյս, Ամերիկայի Միացյալ Նահանգներ
Basque:
Cook konderria, Illinois
Bavarian:
Cook County, Illinois, Vaoanigte Stootn
Bishnupriya Manipuri:
কোক কাউন্টি, ইলিনয়স, তিলপারাষ্ট্র
Bulgarian:
Кук, Илинойс, Съединени американски щати
Catalan:
Comtat de Cook, Illinois, Estats Units d’Amèrica
Cebuano:
Cook County, Illinois
Czech:
Cook County, Illinois, Spojené státy americké
Dutch:
Cook County, Illinois, Verenigde Staten
Estonian:
Cooki maakond, Illinois, Ameerika Ühendriigid
Farsi/Persian:
شهرستان کوک, ایلینوی, ایالات متحده آمریکا
Finnish:
Cookin piirikunta, Illinois, Yhdysvallat
Hebrew:
מחוז קוק, אילינוי, ארצות הברית
Hungarian:
Cook megye, Illinois, Amerikai Egyesült Államok
Indonesian:
Cook County, Illinois, Amerika Serikat
Irish Gaelic:
Contae Cook, Illinois, Stáit Aontaithe Mheiriceá
Japanese:
クック郡, イリノイ州, アメリカ合衆国
Latin:
Cook Comitatus, Illinoesia, Civitates Foederatae Americae
Low Saxon/Low German:
Cook County, Illinois, USA
Norwegian:
Cook County, Illinois, USA
Polish:
Hrabstwo Cook, Illinois, Stany Zjednoczone
Portuguese:
Condado de Cook, Illinois, Estados Unidos
Serbian:
Округ Кук, Илиноис, Сједињене Америчке Државе
Serbo-Croatian:
Cook County, Illinois, Sjedinjene Američke Države
Swedish:
Cook County, Illinois, USA
Traditional Chinese:
曲縣, 伊利諾州, 美國
Turkish:
Cook County, Illinois, Amerika Birleşik Devletleri
Ukrainian:
Кук, Іллінойс, Сполучені Штати Америки
Urdu:
کک کاؤنٹی، الینوائے, الینوائے, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Cook, Illinois, Chủng Quốc Hoa Kỳ
Waray:
Condado han Cook, Illinois, Estados Unidos
Western Punjabi:
کک کاؤنٹی, الینوۓ, امریکہ
Yiddish:
קוק קאונטי, אילינוי, פאראייניקטע שטאטן פון אמעריקע


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

19 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:

Calcite
Formula: CaCO3
'Clay minerals'
Dolomite
Formula: CaMg(CO3)2
'Fayalite-Forsterite Series'
'Garnet Group'
Formula: X3Z2(SiO4)3
Hauerite
Formula: MnS2
Hausmannite
Formula: Mn2+Mn3+2O4
Hematite
Formula: Fe2O3
Larnite
Formula: Ca2SiO4
Mackinawite
Formula: FeS
Magnesioferrite
Formula: MgFe3+2O4
Magnetite
Formula: Fe2+Fe3+2O4
Marcasite
Formula: FeS2
'Maskelynite'
Minrecordite
Formula: CaZn(CO3)2
Portlandite
Formula: Ca(OH)2
Pyrite
Formula: FeS2
'Pyroxene Group'
Formula: ADSi2O6
Quartz
Formula: SiO2
Rankinite
Formula: Ca3Si2O7
Tridymite
Formula: SiO2
Troilite
Formula: FeS
Wollastonite
Formula: Ca3(Si3O9)
Wurtzite
Formula: (Zn,Fe)S

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Wurtzite2.CB.45(Zn,Fe)S
Troilite2.CC.10FeS
Mackinawite2.CC.25FeS
Pyrite2.EB.05aFeS2
Hauerite2.EB.05aMnS2
Marcasite2.EB.10aFeS2
Group 4 - Oxides and Hydroxides
Magnesioferrite4.BB.05MgFe3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Hausmannite4.BB.10Mn2+Mn3+2O4
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Tridymite4.DA.10SiO2
Portlandite4.FE.05Ca(OH)2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Minrecordite5.AB.10CaZn(CO3)2
Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
Larnite9.AD.05Ca2SiO4
Rankinite9.BC.15Ca3Si2O7
Wollastonite9.DG.05Ca3(Si3O9)
Unclassified
'Clay minerals'-
'Maskelynite'-
'Fayalite-Forsterite Series'-
'Pyroxene Group'-ADSi2O6
'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
H PortlanditeCa(OH)2
CCarbon
C CalciteCaCO3
C DolomiteCaMg(CO3)2
C MinrecorditeCaZn(CO3)2
OOxygen
O CalciteCaCO3
O DolomiteCaMg(CO3)2
O HausmanniteMn2+Mn23+O4
O HematiteFe2O3
O LarniteCa2SiO4
O MagnesioferriteMgFe23+O4
O MagnetiteFe2+Fe23+O4
O MinrecorditeCaZn(CO3)2
O PortlanditeCa(OH)2
O QuartzSiO2
O RankiniteCa3Si2O7
O TridymiteSiO2
O WollastoniteCa3(Si3O9)
O Pyroxene GroupADSi2O6
O Garnet GroupX3Z2(SiO4)3
MgMagnesium
Mg DolomiteCaMg(CO3)2
Mg MagnesioferriteMgFe23+O4
SiSilicon
Si LarniteCa2SiO4
Si QuartzSiO2
Si RankiniteCa3Si2O7
Si TridymiteSiO2
Si WollastoniteCa3(Si3O9)
Si Pyroxene GroupADSi2O6
Si Garnet GroupX3Z2(SiO4)3
SSulfur
S HaueriteMnS2
S MackinawiteFeS
S MarcasiteFeS2
S PyriteFeS2
S TroiliteFeS
S Wurtzite(Zn,Fe)S
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca LarniteCa2SiO4
Ca MinrecorditeCaZn(CO3)2
Ca PortlanditeCa(OH)2
Ca RankiniteCa3Si2O7
Ca WollastoniteCa3(Si3O9)
MnManganese
Mn HaueriteMnS2
Mn HausmanniteMn2+Mn23+O4
FeIron
Fe HematiteFe2O3
Fe MagnesioferriteMgFe23+O4
Fe MackinawiteFeS
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe TroiliteFeS
Fe Wurtzite(Zn,Fe)S
ZnZinc
Zn MinrecorditeCaZn(CO3)2
Zn Wurtzite(Zn,Fe)S

Fossils

There are 7 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.

Occurrences329
Youngest Fossil Listed0.01 Ma (Pleistocene)
Oldest Fossil Listed439 Ma (Silurian)
Stratigraphic UnitsClick here to view 6 stratigraphic units.
Fossils from RegionClick here to show the list.
Accepted NameHierarchy Age
Stromatoporoidea
class
Animalia : Porifera : Stromatoporoidea433.4 - 423 Ma
Silurian
Metaconularia
genus
Animalia : Cnidaria : Scyphozoa : Metaconularia427.4 - 423 Ma
Silurian
Favosites
genus
Animalia : Cnidaria : Anthozoa : Favositidae : Favosites433.4 - 423 Ma
Silurian
Halysites
genus
Animalia : Cnidaria : Anthozoa : Favositidae : Halysites433.4 - 423 Ma
Silurian
Heliolites
genus
Animalia : Cnidaria : Anthozoa : Heliolitidae : Heliolites433.4 - 423 Ma
Silurian
Syringopora
genus
Animalia : Cnidaria : Anthozoa : Favositidae : Syringopora433.4 - 423 Ma
Silurian
Rugosa
subclass
Animalia : Cnidaria : Anthozoa : Rugosa433.4 - 423 Ma
Silurian
Cyathaxonia
genus
Animalia : Cnidaria : Anthozoa : Cyathaxoniidae : Cyathaxonia433.4 - 423 Ma
Silurian
Neozaphrentis
genus
Animalia : Cnidaria : Anthozoa : Hapsiphyllidae : Neozaphrentis433.4 - 423 Ma
Silurian
Lecathylus
genus
Animalia : Sipuncula : Lecathylus427.4 - 423 Ma
Silurian
Protoscolex
genus
Animalia : Palaeoscolecida : Protoscolex427.4 - 423 Ma
Silurian
Mollusca
phylum
Animalia : Mollusca433.4 - 423 Ma
Silurian
Gastropoda
class
Animalia : Mollusca : Gastropoda433.4 - 423 Ma
Silurian
Cyclonema
genus
Animalia : Mollusca : Gastropoda : Platyceratidae : Cyclonema433.4 - 423 Ma
Silurian
Straparollus
genus
Animalia : Mollusca : Gastropoda : Euomphalidae : Straparollus433.4 - 423 Ma
Silurian
Phanerotrema
genus
Animalia : Mollusca : Gastropoda : Pleurotomariida : Phanerotrematidae : Phanerotrema433.4 - 423 Ma
Silurian
Platyceras
genus
Animalia : Mollusca : Gastropoda : Platyceratidae : Platyceras433.4 - 423 Ma
Silurian
Dawsonoceras
genus
Animalia : Mollusca : Cephalopoda : Nautilida : Nautilidae : Dawsonoceras433.4 - 423 Ma
Silurian
Kionoceras
genus
Animalia : Mollusca : Cephalopoda : Orthoceratidae : Kionoceras433.4 - 423 Ma
Silurian
Actinoceras
genus
Animalia : Mollusca : Cephalopoda : Actinoceratidae : Actinoceras433.4 - 423 Ma
Silurian
Phragmoceras
genus
Animalia : Mollusca : Cephalopoda : Phragmoceratidae : Phragmoceras433.4 - 423 Ma
Silurian
Cyrtoceras
genus
Animalia : Mollusca : Cephalopoda : Nautilida : Nautilidae : Cyrtoceras433.4 - 423 Ma
Silurian
Bivalvia
class
Animalia : Mollusca : Bivalvia433.4 - 423 Ma
Silurian
Pterinea
genus
Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : Pterinea433.4 - 423 Ma
Silurian
Modiolopsis
genus
Animalia : Mollusca : Bivalvia : Unionida : Iridinidae : Modiolopsis433.4 - 423 Ma
Silurian
Trilobita
class
Animalia : Arthropoda : Trilobita433.4 - 423 Ma
Silurian
Bumastus
genus
Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : Bumastus433.4 - 423 Ma
Silurian
Illaenoides
genus
Animalia : Arthropoda : Trilobita : Corynexochida : Styginidae : Illaenoides433.4 - 423 Ma
Silurian
Arctinurus
genus
Animalia : Arthropoda : Trilobita : Lichida : Lichidae : Arctinurus433.4 - 423 Ma
Silurian
Dicranopeltis
genus
Animalia : Arthropoda : Trilobita : Lichida : Lichidae : Dicranopeltis433.4 - 423 Ma
Silurian
Lichas
genus
Animalia : Arthropoda : Trilobita : Lichida : Lichidae : Lichas433.4 - 423 Ma
Silurian
Trochurus
genus
Animalia : Arthropoda : Trilobita : Lichida : Lichidae : Trochurus433.4 - 423 Ma
Silurian
Dudleyaspis
genus
Animalia : Arthropoda : Trilobita : Lichida : Selenopeltidae : Dudleyaspis433.4 - 423 Ma
Silurian
Kosovopeltis
genus
Animalia : Arthropoda : Trilobita : Corynexochida : Styginidae : Kosovopeltis433.4 - 423 Ma
Silurian
Decoroproetus
genus
Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Decoroproetus433.4 - 423 Ma
Silurian
Proetus
genus
Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Proetus433.4 - 423 Ma
Silurian
Calymene
genus
Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Calymene433.4 - 423 Ma
Silurian
Dalmanites
genus
Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Dalmanites433.4 - 423 Ma
Silurian
Deiphon
genus
Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Deiphon433.4 - 423 Ma
Silurian
Encrinurus
genus
Animalia : Arthropoda : Trilobita : Phacopida : Encrinuridae : Encrinurus433.4 - 423 Ma
Silurian
Eophacops
genus
Animalia : Arthropoda : Trilobita : Phacopida : Pterygometopidae : Eophacops433.4 - 423 Ma
Silurian
Lygdozoon
genus
Animalia : Arthropoda : Trilobita : Phacopida : Synphoriidae : Lygdozoon433.4 - 423 Ma
Silurian
Sphaerexochus
genus
Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Sphaerexochus433.4 - 423 Ma
Silurian
Staurocephalus
genus
Animalia : Arthropoda : Trilobita : Phacopida : Encrinuridae : Staurocephalus433.4 - 423 Ma
Silurian
Ceratiocaris
genus
Animalia : Arthropoda : Malacostraca : Ceratiocarididae : Ceratiocaris427.4 - 423 Ma
Silurian
Bryozoa
phylum
Animalia : Bryozoa433.4 - 423 Ma
Silurian
Brachiopoda
phylum
Animalia : Brachiopoda433.4 - 423 Ma
Silurian
Orbiculoidea
genus
Animalia : Brachiopoda : Lingulata : Lingulida : Discinidae : Orbiculoidea427.4 - 423 Ma
Silurian
Schizotreta
genus
Animalia : Brachiopoda : Lingulata : Lingulida : Discinidae : Schizotreta427.4 - 423 Ma
Silurian
Dinobolus
genus
Animalia : Brachiopoda : Craniata : Trimerellidae : Dinobolus433.4 - 423 Ma
Silurian
Orthida
order
Animalia : Brachiopoda : Rhynchonellata : Orthida433.4 - 423 Ma
Silurian
Dalejina
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Rhipidomellidae : Dalejina433.4 - 423 Ma
Silurian
Isorthis
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Isorthis433.4 - 423 Ma
Silurian
Resserella
genus
Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : Resserella433.4 - 423 Ma
Silurian
Strophomenida
order
Animalia : Brachiopoda : Strophomenata : Strophomenida433.4 - 423 Ma
Silurian
Leptaena
genus
Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Leptaena433.4 - 423 Ma
Silurian
Protomegastrophia
genus
Animalia : Brachiopoda : Strophomenata : Strophomenida : Leptostrophiidae : Protomegastrophia433.4 - 423 Ma
Silurian
Pentamerida
order
Animalia : Brachiopoda : Rhynchonellata : Pentamerida433.4 - 423 Ma
Silurian
Anastrophia
genus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Parastrophinidae : Anastrophia433.4 - 423 Ma
Silurian
Camerella
genus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Camerellidae : Camerella433.4 - 423 Ma
Silurian
Harpidium
genus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Harpidium433.4 - 423 Ma
Silurian
Harpidium (Isovella)
subgenus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Harpidium : Harpidium (Isovella)433.4 - 423 Ma
Silurian
Kirkidium
genus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Kirkidium433.4 - 423 Ma
Silurian
Pentameroides
genus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Pentameroides433.4 - 423 Ma
Silurian
Rhipidium
genus
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Rhipidium433.4 - 423 Ma
Silurian
Rhynchonellida
order
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida433.4 - 423 Ma
Silurian
Ferganella
genus
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Machaerariidae : Ferganella433.4 - 423 Ma
Silurian
Rhynchotreta
genus
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Trigonirhynchiidae : Rhynchotreta433.4 - 423 Ma
Silurian
Stegerhynchus
genus
Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchotrematidae : Stegerhynchus433.4 - 423 Ma
Silurian
Eospirifer
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : Eospirifer433.4 - 423 Ma
Silurian
Hedeina
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : Hedeina433.4 - 423 Ma
Silurian
Homoeospira
genus
Animalia : Brachiopoda : Rhynchonellata : Athyridida : Rhynchospirinidae : Homoeospira433.4 - 423 Ma
Silurian
Howellella
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Delthyrididae : Howellella433.4 - 423 Ma
Silurian
Merista
genus
Animalia : Brachiopoda : Rhynchonellata : Athyridida : Meristidae : Merista433.4 - 423 Ma
Silurian
Meristina
genus
Animalia : Brachiopoda : Rhynchonellata : Athyridida : Meristellidae : Meristina433.4 - 423 Ma
Silurian
Striispirifer
genus
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : Striispirifer433.4 - 423 Ma
Silurian
Whitfieldella
genus
Animalia : Brachiopoda : Rhynchonellata : Athyridida : Meristellidae : Whitfieldella433.4 - 423 Ma
Silurian
Atrypa
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Atrypa433.4 - 423 Ma
Silurian
Lissatrypa
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Lissatrypidae : Lissatrypa433.4 - 423 Ma
Silurian
Plectatrypa
genus
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Plectatrypa433.4 - 423 Ma
Silurian
Caryocrinites
genus
Animalia : Echinodermata : Rhombifera : Caryocrinitidae : Caryocrinites433.4 - 423 Ma
Silurian
Coelocystis
genus
Animalia : Echinodermata : Rhombifera : Callocystitidae : Coelocystis433.4 - 423 Ma
Silurian
Hallicystis
genus
Animalia : Echinodermata : Rhombifera : Callocystitidae : Hallicystis433.4 - 423 Ma
Silurian
Gomphocystites
genus
Animalia : Echinodermata : Diploporita : Gomphocystitidae : Gomphocystites433.4 - 423 Ma
Silurian
Holocystites
genus
Animalia : Echinodermata : Diploporita : Holocystitidae : Holocystites433.4 - 427.4 Ma
Silurian
Crinoidea
class
Animalia : Echinodermata : Crinoidea433.4 - 423 Ma
Silurian
Cyphocrinus
genus
Animalia : Echinodermata : Crinoidea : Cyphocrinus433.4 - 423 Ma
Silurian
Dimerocrinites
genus
Animalia : Echinodermata : Crinoidea : Dimerocrinitidae : Dimerocrinites433.4 - 423 Ma
Silurian
Gazacrinus
genus
Animalia : Echinodermata : Crinoidea : Gazacrinus433.4 - 423 Ma
Silurian
Hagnocrinus
genus
Animalia : Echinodermata : Crinoidea : Hagnocrinus433.4 - 423 Ma
Silurian
Lampterocrinus
genus
Animalia : Echinodermata : Crinoidea : Lampterocrinidae : Lampterocrinus433.4 - 423 Ma
Silurian
Lyriocrinus
genus
Animalia : Echinodermata : Crinoidea : Rhodocrinitidae : Lyriocrinus433.4 - 423 Ma
Silurian
Siphonocrinus
genus
Animalia : Echinodermata : Crinoidea : Lampterocrinidae : Siphonocrinus433.4 - 423 Ma
Silurian
Archaeocalyptocrinus
genus
Animalia : Echinodermata : Crinoidea : Archaeocalyptocrinus433.4 - 423 Ma
Silurian
Calliocrinus
genus
Animalia : Echinodermata : Crinoidea : Eucalyptocrinitidae : Calliocrinus433.4 - 423 Ma
Silurian
Carpocrinus
genus
Animalia : Echinodermata : Crinoidea : Carpocrinidae : Carpocrinus433.4 - 423 Ma
Silurian
Clonocrinus
genus
Animalia : Echinodermata : Crinoidea : Clonocrinus433.4 - 423 Ma
Silurian
Cytocrinus
genus
Animalia : Echinodermata : Crinoidea : Cytocrinus433.4 - 423 Ma
Silurian
Eucalyptocrinites
genus
Animalia : Echinodermata : Crinoidea : Eucalyptocrinitidae : Eucalyptocrinites433.4 - 423 Ma
Silurian
Macrostylocrinus
genus
Animalia : Echinodermata : Crinoidea : Patelliocrinidae : Macrostylocrinus433.4 - 423 Ma
Silurian
Marsupiocrinus
genus
Animalia : Echinodermata : Crinoidea : Marsupiocrinidae : Marsupiocrinus433.4 - 423 Ma
Silurian
Melocrinites
genus
Animalia : Echinodermata : Crinoidea : Melocrinitidae : Melocrinites433.4 - 423 Ma
Silurian
Periechocrinus
genus
Animalia : Echinodermata : Crinoidea : Periechocrinidae : Periechocrinus433.4 - 423 Ma
Silurian
Homocrinus
genus
Animalia : Echinodermata : Crinoidea : Homocrinidae : Homocrinus427.4 - 423 Ma
Silurian
Crotalocrinites
genus
Animalia : Echinodermata : Crinoidea : Crotalocrinitidae : Crotalocrinites433.4 - 423 Ma
Silurian
Cyathocrinites
genus
Animalia : Echinodermata : Crinoidea : Cyathocrinitidae : Cyathocrinites433.4 - 423 Ma
Silurian
Icthyocrinus
genus
Animalia : Echinodermata : Crinoidea : Icthyocrinus433.4 - 423 Ma
Silurian
Lecanocrinus
genus
Animalia : Echinodermata : Crinoidea : Lecanocrinidae : Lecanocrinus433.4 - 423 Ma
Silurian
Nummicrinus
genus
Animalia : Echinodermata : Crinoidea : Nummicrinus433.4 - 423 Ma
Silurian
Graptolithina
class
Animalia : Hemichordata : Graptolithina427.4 - 423 Ma
Silurian
Desmograptus
genus
Animalia : Hemichordata : Pterobranchia : Dendrograptidae : Desmograptus427.4 - 423 Ma
Silurian
Dictyonema
genus
Animalia : Hemichordata : Pterobranchia : Dendrograptidae : Dictyonema427.4 - 423 Ma
Silurian
Reticulograptus
genus
Animalia : Hemichordata : Graptolithina : Tuboidea : Reticulograptus427.4 - 423 Ma
Silurian
Monograptus
genus
Animalia : Hemichordata : Pterobranchia : Monograptidae : Monograptus427.4 - 423 Ma
Silurian
Saetograptus
genus
Animalia : Hemichordata : Graptolithina : Saetograptus427.4 - 423 Ma
Silurian
Plantae
kingdom
Plantae427.4 - 423 Ma
Silurian
Platyceratidae
family
Animalia : Mollusca : Gastropoda : Platyceratidae433.4 - 423 Ma
Silurian
Lophospiridae
family
Animalia : Mollusca : Gastropoda : Lophospiridae433.4 - 423 Ma
Silurian
Styginidae
family
Animalia : Arthropoda : Trilobita : Corynexochida : Styginidae433.4 - 423 Ma
Silurian
Eotomarioidea
superfamily
Animalia : Mollusca : Gastropoda : Murchisoniina : Eotomarioidea433.4 - 423 Ma
Silurian
Nautiloidea
subclass
Animalia : Mollusca : Cephalopoda : Nautiloidea433.4 - 423 Ma
Silurian
Euomphalidae
family
Animalia : Mollusca : Gastropoda : Euomphalidae433.4 - 423 Ma
Silurian
Tabulata
subclass
Animalia : Cnidaria : Anthozoa : Tabulata433.4 - 423 Ma
Silurian
Ectopistes migratorius
species
Animalia : Chordata : Aves : Columbiformes : Columbidae : Ectopistes : Ectopistes migratorius0.0117 - 0 Ma
Quaternary
Calymenidae
family
Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae433.4 - 423 Ma
Silurian
Encrinuridae
family
Animalia : Arthropoda : Trilobita : Phacopida : Encrinuridae433.4 - 423 Ma
Silurian
Ischadites
genus
Plantae : Chlorophyta : Ischadites433.4 - 423 Ma
Silurian
Fenestellidae
family
Animalia : Bryozoa : Stenolaemata : Fenestrida : Fenestellidae433.4 - 423 Ma
Silurian
Blastozoa
subphylum
Animalia : Echinodermata : Blastozoa433.4 - 423 Ma
Silurian
Stricklandiidae
family
Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Stricklandiidae433.4 - 423 Ma
Silurian
Conulariida
order
Animalia : Cnidaria : Scyphozoa : Conulariida427.4 - 423 Ma
Silurian
Eodictyonella
genus
Animalia : Brachiopoda : Chileata : Dictyonellida : Eichwaldiidae : Eodictyonella433.4 - 423 Ma
Silurian
Lingula lamellata
species
Animalia : Brachiopoda : Lingulata : Lingulida : Lingulidae : Lingula : Lingula lamellata427.4 - 423 Ma
Silurian
Atrypa reticularis
species
Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Atrypa : Atrypa reticularis433.4 - 423 Ma
Silurian
Bumastus insignis
species
Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : Bumastus : Bumastus insignis433.4 - 423 Ma
Silurian
Ceratocephala goniata
species
Animalia : Arthropoda : Trilobita : Lichida : Odontopleuridae : Ceratocephala : Ceratocephala goniata433.4 - 423 Ma
Silurian
Calymene celebra
species
Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Calymene : Calymene celebra433.4 - 423 Ma
Silurian
Cheirurus niagarensis
species
Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Cheirurus : Cheirurus niagarensis433.4 - 423 Ma
Silurian
Cheirurus patens
species
Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Cheirurus : Cheirurus patens433.4 - 423 Ma
Silurian
Sphaerexochus romingeri
species
Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Sphaerexochus : Sphaerexochus romingeri433.4 - 423 Ma
Silurian
Tremanotus
genus
Animalia : Mollusca : Gastropoda : Bellerophontida : Bucaniidae : Tremanotus433.4 - 423 Ma
Silurian
Eucalyptocrinitidae
family
Animalia : Echinodermata : Crinoidea : Eucalyptocrinitidae433.4 - 423 Ma
Silurian
Caryocrinites ornatus
species
Animalia : Echinodermata : Rhombifera : Caryocrinitidae : Caryocrinites : Caryocrinites ornatus433.4 - 423 Ma
Silurian
Leptaena rhomboidalis
species
Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : Leptaena : Leptaena rhomboidalis433.4 - 423 Ma
Silurian
Eospirifer radiatus
species
Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : Eospirifer : Eospirifer radiatus433.4 - 423 Ma
Silurian
Platylichas
genus
Animalia : Arthropoda : Trilobita : Lichida : Lichidae : Platylichas433.4 - 423 Ma
Silurian
Pseudotupolichas chicagoensis
species
Animalia : Arthropoda : Trilobita : Lichida : Lichidae : Pseudotupolichas : Pseudotupolichas chicagoensis433.4 - 423 Ma
Silurian
Bumastus (Bumastus)
subgenus
Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : Bumastus : Bumastus (Bumastus)433.4 - 423 Ma
Silurian
Holocystites (Holocystites) alternatus
species
Animalia : Echinodermata : Diploporita : Holocystitidae : Holocystites : Holocystites (Holocystites) alternatus433.4 - 423 Ma
Silurian
Holocystites (Sepulticystis) spangleri
species
Animalia : Echinodermata : Diploporita : Holocystitidae : Holocystites : Holocystites (Sepulticystis) spangleri433.4 - 427.4 Ma
Silurian
Holocystites cylindricus
species
Animalia : Echinodermata : Diploporita : Holocystitidae : Holocystites : Holocystites cylindricus439 - 426.2 Ma
Silurian
Fossil LocalitiesClick to show 7 fossil localities

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Cook_County,_Illinois
Wikidata ID:Q108418
GeoNames ID:4888671

Localities in this Region

Other Regions, Features and Areas that Intersect


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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