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Gower - LeClaire, Rock Island County, Illinois, USA

Formation	Gower
Member	LeClaire
Age:	443 - 427 Ma Silurian
Interval	Silurian - Wenlock
Tectonic Setting	Cratonic basin
Lithology	wackestone
Number of Collections	1
Number of Occurrences	32

Recorded Sample Locations

Location	Region	Stratigraphic Name
Crotalocrinites-Eucalyptocrinites Association of the Gower Formation	Rock Island County, Illinois, USA	Gower - LeClaire

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Bumastus sp. genus	6	Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : *Bumastus*	443.4 - 427.4 Ma Silurian
Rhynchonellidae family	5	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Rhynchonellidae	443.4 - 427.4 Ma Silurian
Eospirifer sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : *Eospirifer*	443.4 - 427.4 Ma Silurian
Hedeina sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : *Hedeina*	443.4 - 427.4 Ma Silurian
Leptaena sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : *Leptaena*	443.4 - 427.4 Ma Silurian
Rugosa subclass	3.3	Animalia : Cnidaria : Anthozoa : Rugosa	443.4 - 427.4 Ma Silurian
Fletcheria sp. genus	6	Animalia : Cnidaria : Anthozoa : Fletcheriidae : *Fletcheria*	443.4 - 427.4 Ma Silurian
Favosites sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Favosites*	443.4 - 427.4 Ma Silurian
Halysites sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Halysites*	443.4 - 427.4 Ma Silurian
Crinoidea class	3	Animalia : Echinodermata : Crinoidea	443.4 - 427.4 Ma Silurian
Crotalocrinites sp. genus	6	Animalia : Echinodermata : Crinoidea : Crotalocrinitidae : *Crotalocrinites*	443.4 - 427.4 Ma Silurian
Dimerocrinites sp. genus	6	Animalia : Echinodermata : Crinoidea : Dimerocrinitidae : *Dimerocrinites*	443.4 - 427.4 Ma Silurian
Siphonocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Lampterocrinidae : *Siphonocrinus*	443.4 - 427.4 Ma Silurian
Eucalyptocrinites sp. genus	6	Animalia : Echinodermata : Crinoidea : Eucalyptocrinitidae : *Eucalyptocrinites*	443.4 - 427.4 Ma Silurian
Calliocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Eucalyptocrinitidae : *Calliocrinus*	443.4 - 427.4 Ma Silurian
Periechocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Periechocrinidae : *Periechocrinus*	443.4 - 427.4 Ma Silurian
Icthyocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : *Icthyocrinus*	443.4 - 427.4 Ma Silurian
Caryocrinites sp. genus	6	Animalia : Echinodermata : Rhombifera : Caryocrinitidae : *Caryocrinites*	443.4 - 427.4 Ma Silurian
Bivalvia class	3	Animalia : Mollusca : Bivalvia	443.4 - 427.4 Ma Silurian
Amphicoelia sp. genus	6	Animalia : Mollusca : Bivalvia : Myalinida : Ambonychiidae : *Amphicoelia*	443.4 - 427.4 Ma Silurian
Nautiloidea subclass	3.3	Animalia : Mollusca : Cephalopoda : Nautiloidea	443.4 - 427.4 Ma Silurian
Gastropoda class	3	Animalia : Mollusca : Gastropoda	443.4 - 427.4 Ma Silurian
Tremanotus sp. genus	6	Animalia : Mollusca : Gastropoda : Bellerophontida : Bucaniidae : *Tremanotus*	443.4 - 427.4 Ma Silurian
Euomphalidae family	5	Animalia : Mollusca : Gastropoda : Euomphalina : Euomphalidae	443.4 - 427.4 Ma Silurian
Pachystrophia sp. genus	6	Animalia : Mollusca : Gastropoda : Holopeidae : *Pachystrophia*	443.4 - 427.4 Ma Silurian
Cyclonema sp. genus	6	Animalia : Mollusca : Gastropoda : Platyceratidae : *Cyclonema*	443.4 - 427.4 Ma Silurian
Naticonema sp. genus	6	Animalia : Mollusca : Gastropoda : Platyceratidae : *Naticonema*	443.4 - 427.4 Ma Silurian
Murchisonioidea superfamily	4.7	Animalia : Mollusca : Gastropoda : Murchisoniina : Murchisonioidea	443.4 - 427.4 Ma Silurian
Loxonematidae family	5	Animalia : Mollusca : Gastropoda : Loxonematidae	443.4 - 427.4 Ma Silurian

References

Frest T. J., Brett C. E., et al (1999) Caradocian-Gedinnian echinoderm associations of Central and Eastern North America, Paleocommunities--a case study from the Silurian and Lower Devonian, 638-783

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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