Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O
Group 5 - Nitrates and Carbonates
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Opal	SiO₂ · nH₂O
C	Carbon
C	ⓘ Dolomite	CaMg(CO₃)₂
O	Oxygen
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Opal	SiO₂ · nH₂O
F	Fluorine
F	ⓘ Fluorite	CaF₂
Mg	Magnesium
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Si	Silicon
Si	ⓘ Opal	SiO₂ · nH₂O
Ca	Calcium
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Fluorite	CaF₂

Fossils

There are 10 fossil localities from the PaleoBioDB database within this region.

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

Occurrences

Youngest Fossil Listed

299 Ma (Carboniferous)

Oldest Fossil Listed

388 Ma (Middle Devonian)

Stratigraphic Units

Click here to view 11 stratigraphic units.

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
Chaetetes genus	Animalia : Porifera : Chaetetidae : *Chaetetes*	339.4 - 326.4 Ma Carboniferous
Syringopora genus	Animalia : Cnidaria : Anthozoa : Favositidae : *Syringopora*	339.4 - 326.4 Ma Carboniferous
Amplexizaphrentis genus	Animalia : Cnidaria : Anthozoa : Hapsiphyllidae : *Amplexizaphrentis*	326.4 - 318.1 Ma Carboniferous
Hyolithes genus	Animalia : Hyolitha : Hyolithida : Hyolithidae : *Hyolithes*	387.7 - 382.7 Ma Devonian
Tentaculites genus	Animalia : Mollusca : Tentaculitidae : *Tentaculites*	387.7 - 382.7 Ma Devonian
Gastropoda class	Animalia : Mollusca : Gastropoda	339.4 - 326.4 Ma Carboniferous
Aviculopecten genus	Animalia : Mollusca : Bivalvia : Myalinida : Myalinidae : *Aviculopecten*	387.7 - 382.7 Ma Devonian
Leptodesma (Leiopteria) subgenus	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : Leptodesma : *Leptodesma (Leiopteria)*	387.7 - 382.7 Ma Devonian
Pseudaviculopecten genus	Animalia : Mollusca : Bivalvia : Pectinida : Pterinopectinidae : *Pseudaviculopecten*	387.7 - 382.7 Ma Devonian
Goniophora genus	Animalia : Mollusca : Bivalvia : Modiomorphida : Modiomorphidae : *Goniophora*	387.7 - 382.7 Ma Devonian
Cytherodon genus	Animalia : Mollusca : Bivalvia : Trigoniida : *Cytherodon*	387.7 - 382.7 Ma Devonian
Cypricardella genus	Animalia : Mollusca : Bivalvia : Carditida : Astartidae : *Cypricardella*	387.7 - 382.7 Ma Devonian
Bryozoa phylum	Animalia : Bryozoa	339.4 - 326.4 Ma Carboniferous
Archimedes genus	Animalia : Bryozoa : Stenolaemata : Fenestrida : Fenestellidae : *Archimedes*	326.4 - 318.1 Ma Carboniferous
Brachiopoda phylum	Animalia : Brachiopoda	339.4 - 326.4 Ma Carboniferous
Dictyoclostus genus	Animalia : Brachiopoda : Strophomenata : Productida : Productidae : *Dictyoclostus*	326.4 - 318.1 Ma Carboniferous
Cleiothyridina genus	Animalia : Brachiopoda : Rhynchonellata : Athyridida : Athyrididae : *Cleiothyridina*	326.4 - 318.1 Ma Carboniferous
Torynifer genus	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Elythidae : *Torynifer*	326.4 - 318.1 Ma Carboniferous
Beecheria genus	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Beecheriidae : *Beecheria*	326.4 - 318.1 Ma Carboniferous
Echinodermata phylum	Animalia : Echinodermata	339.4 - 326.4 Ma Carboniferous
Pentremites genus	Animalia : Echinodermata : Pentremitidae : *Pentremites*	326.4 - 318.1 Ma Carboniferous
Dasciocrinus genus	Animalia : Echinodermata : Crinoidea : *Dasciocrinus*	326.4 - 318.1 Ma Carboniferous
Harmostocrinus genus	Animalia : Echinodermata : Crinoidea : *Harmostocrinus*	326.4 - 318.1 Ma Carboniferous
Tholocrinus genus	Animalia : Echinodermata : Crinoidea : *Tholocrinus*	326.4 - 318.1 Ma Carboniferous
Diplothmema genus	Plantae : Tracheophyta : Polypodiopsida : Polypodiales : Pteridaceae : *Diplothmema*	323.2 - 298.9 Ma Carboniferous
Serpulidae family	Animalia : Annelida : Polychaeta : Sabellida : Serpulidae	339.4 - 326.4 Ma Carboniferous
Parachaetetes genus	Plantae : Rhodophyta : Florideophyceae : Gigartinales : *Parachaetetes*	339.4 - 326.4 Ma Carboniferous
Devononema typicum species	Animalia : Mollusca : Gastropoda : Platyceratidae : Devononema : *Devononema typicum*	387.7 - 382.7 Ma Devonian
Spinyplatyceras fornicatum species	Animalia : Mollusca : Gastropoda : Euomphalina : Platyceratidae : Spinyplatyceras : *Spinyplatyceras fornicatum*	387.7 - 382.7 Ma Devonian
Platyostoma lineata species	Animalia : Mollusca : Gastropoda : Euomphalina : Platyceratidae : Platyceras : *Platyostoma lineata*	387.7 - 382.7 Ma Devonian
Denayella rotalia species	Animalia : Mollusca : Gastropoda : Murchisoniina : Eotomariidae : Denayella : *Denayella rotalia*	387.7 - 382.7 Ma Devonian
Compsaster formosus species	Animalia : Echinodermata : Asteroidea : Forcipulatida : Compsasteridae : Compsaster : *Compsaster formosus*	326.4 - 318.1 Ma Carboniferous
Schondorfia fungosa species	Animalia : Echinodermata : Asteroidea : Schondorfia : *Schondorfia fungosa*	326.4 - 318.1 Ma Carboniferous
Modiomorpha concentrica species	Animalia : Mollusca : Bivalvia : Modiomorphida : Modiomorphidae : Modiomorpha : *Modiomorpha concentrica*	387.7 - 382.7 Ma Devonian
Lepidophyllum genus	*Lepidophyllum*	323.2 - 298.9 Ma Carboniferous
Alethopteris genus	Plantae : Tracheophyta : Pachytestaceae : *Alethopteris*	323.2 - 298.9 Ma Carboniferous
Cordaites genus	Plantae : Tracheophyta : Pinopsida : Cordaitaceae : *Cordaites*	358.9 - 298.9 Ma Paleozoic
Reticulariina spinosa species	Animalia : Brachiopoda : Rhynchonellata : Spiriferinida : Reticulariinidae : Reticulariina : *Reticulariina spinosa*	326.4 - 318.1 Ma Carboniferous
Eremopteris genus	Plantae : Ginkgophyta : Ginkgoopsida : Callistophytales : *Eremopteris*	323.2 - 298.9 Ma Carboniferous
Sigillaria genus	Plantae : Sigillariaceae : *Sigillaria*	358.9 - 298.9 Ma Paleozoic
Neuropteris genus	Plantae : Tracheophyta : Pachytestaceae : *Neuropteris*	323.2 - 298.9 Ma Carboniferous
Mariopteris genus	Plantae : Tracheophyta : Callistophytaceae : *Mariopteris*	323.2 - 298.9 Ma Carboniferous
Pecopteris genus	Plantae : Tracheophyta : Polypodiopsida : Marattiales : Asterothecaceae : *Pecopteris*	323.2 - 298.9 Ma Carboniferous
Punctospirifer transversus species	Animalia : Brachiopoda : Rhynchonellata : Spiriferinida : Punctospiriferidae : Punctospirifer : *Punctospirifer transversus*	326.4 - 318.1 Ma Carboniferous
Sphenophyllum genus	Plantae : Tracheophyta : Polypodiopsida : Sphenophyllaceae : *Sphenophyllum*	323.2 - 298.9 Ma Carboniferous
Cardiocarpon genus	*Cardiocarpon*	323.2 - 298.9 Ma Carboniferous
Echinoconchus alternatus species	Animalia : Brachiopoda : Strophomenata : Productida : Echinoconchidae : Echinoconchus : *Echinoconchus alternatus*	326.4 - 318.1 Ma Carboniferous
Composita trinuclea species	Animalia : Brachiopoda : Rhynchonellata : Athyridida : Athyrididae : Composita : *Composita trinuclea*	326.4 - 318.1 Ma Carboniferous
Griffithidella doris species	Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Griffithidella : *Griffithidella doris*	358.9 - 342.8 Ma Paleozoic
Thigriffides roundyi species	Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Thigriffides : *Thigriffides roundyi*	358.9 - 342.8 Ma Paleozoic
Carbonocoryphe planucauda species	Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Carbonocoryphe : *Carbonocoryphe planucauda*	358.9 - 342.8 Ma Paleozoic
Griffithidella alternata species	Animalia : Arthropoda : Trilobita : Proetida : Proetidae : Griffithidella : *Griffithidella alternata*	358.9 - 342.8 Ma Paleozoic
Actinopteria boydi species	Animalia : Mollusca : Bivalvia : Ostreida : Pterineidae : Actinopteria : *Actinopteria boydi*	387.7 - 382.7 Ma Devonian

Fossil Localities

Click to show 10 fossil localities

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Union_County,_Illinois
Wikidata ID:	Q486458
GeoNames ID:	4251707

Localities in this Region

Other Regions, Features and Areas that Intersect

North AmericaContinent

North America PlateTectonic Plate

Granite-Rhyolite ProvinceMagmatic Province
Illinois BasinBasin
Shawnee DomainDomain

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