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Black River - Platteville - Beloit, Rock County, Wisconsin, USA

Group	Black River
Formation	Platteville
Member	Beloit
Age:	461 - 450 Ma Ordovician
Interval	Turinian
Tectonic Setting	Cratonic basin
Lithology	limestone/dolomite
Number of Collections	1
Number of Occurrences	13

Recorded Sample Locations

Location	Region	Stratigraphic Name
Beloit	Rock County, Wisconsin, USA	Black River - Platteville - Beloit

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Cyrtocerina crenulata species	7	Cyrtocerinida : Cyrtocerinidae : Cyrtocerina : *Cyrtocerina crenulata*	460.9 - 449.5 Ma Ordovician
Phragmolites triangularis species	7	Animalia : Mollusca : Gastropoda : Bellerophontida : Bucaniidae : Phragmolites : *Phragmolites triangularis*	460.9 - 449.5 Ma Ordovician
Clathrospira subconica species	7	Animalia : Mollusca : Gastropoda : Murchisoniina : Eotomariidae : Clathrospira : *Clathrospira subconica*	460.9 - 449.5 Ma Ordovician
Liospira obtusa species	7	Animalia : Mollusca : Gastropoda : Pleurotomariida : Eotomariidae : Liospira : *Liospira obtusa*	460.9 - 449.5 Ma Ordovician
Hormotoma gracilis angustatus subspecies	7.3	Animalia : Mollusca : Gastropoda : Murchisoniina : Hormotomidae : Hormotoma : *Hormotoma gracilis angustatus*	460.9 - 449.5 Ma Ordovician
Lophospira centralis species	7	Animalia : Mollusca : Gastropoda : Lophospiridae : Eunema : *Lophospira centralis*	460.9 - 449.5 Ma Ordovician
Murchisonia helicteres species	7	Animalia : Mollusca : Gastropoda : Lophospiridae : Eunema : *Murchisonia helicteres*	460.9 - 449.5 Ma Ordovician
Murchisonia serrulata species	7	Animalia : Mollusca : Gastropoda : Lophospiridae : Lophospira : *Murchisonia serrulata*	460.9 - 449.5 Ma Ordovician
Murchisonia ventricosa species	7	Animalia : Mollusca : Gastropoda : Lophospiridae : Lophospira : *Murchisonia ventricosa*	460.9 - 449.5 Ma Ordovician
Trochonema rugosa species	7	Animalia : Mollusca : Gastropoda : Trochonematidae : Trochonema : *Trochonema rugosa*	460.9 - 449.5 Ma Ordovician
Archinacella beloitensis species	7	Animalia : Mollusca : Tergomya : Archinacellida : Archinacellidae : Archinacella : *Archinacella beloitensis*	460.9 - 449.5 Ma Ordovician
Archinacella powersi species	7	Animalia : Mollusca : Tergomya : Archinacellida : Archinacellidae : Archinacella : *Archinacella powersi*	460.9 - 449.5 Ma Ordovician
Tryblidium exserta species	7	Animalia : Mollusca : Tergomya : Tryblidiida : Tryblidiidae : Tryblidium : *Tryblidium exserta*	460.9 - 449.5 Ma Ordovician

References

Ulrich E. O., Scofield W. H. The Lower Silurian Gastropoda of Minnesota, The Paleontology of Minnesota 39 2, 813-1081

Flower R. H. (1952) New Ordovician Cephalopods from Eastern North America, Journal of Paleontology 26 1, 24-59

Ebbestad J.O.R., Yochelson E. L. (2000) Isostrophic molluscs (Tergomya and Gastropoda) from the Upper Ordovician of Norway, Norsk Geologisk Tidsskrift 80 2, 187-202

Wagner P. J. (2017) Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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