Crotalocrinites-Eucalyptocrinites Association of the Gower Formation is a fossil collection site in Rock Island County, Illinois, cataloged in the Paleobiology Database. Fossils here come from the Gower Formation, dated to the Silurian to Wenlock (443.1–426.7 million years ago). The depositional environment is recorded as reef, buildup or bioherm and the tectonic setting is cratonic basin. Documented finds include Crotalocrinites, Siphonocrinus, Eucalyptocrinites, Calliocrinus, Dimerocrinites, Periechocrinus.

Geologic setting

Formation: Gower
Geologic interval: Silurian to Wenlock
Age: 443.1–426.7 Ma
Depositional environment: reef, buildup or bioherm
Tectonic setting: cratonic basin
Recorded occurrences: 32

Geology notes

SEP environmental call based on given description and same vol. page 807.

Fossils found here

Crotalocrinites

Crinoidea · Crotalocrinitidae

Siphonocrinus

Crinoidea · Lampterocrinidae

Eucalyptocrinites

Crinoidea · Eucalyptocrinitidae

Calliocrinus

Crinoidea · Eucalyptocrinitidae

Dimerocrinites

Crinoidea · Dimerocrinitidae

Periechocrinus

Crinoidea · Periechocrinidae

Icthyocrinus

Crinoidea · NO_FAMILY_SPECIFIED

Crinoidea

Caryocrinites

Rhombifera · Caryocrinitidae

Rhynchonellidae

Rhynchonellata · Rhynchonellidae

Hedeina

Rhynchonellata · Cyrtiidae

Eospirifer

Rhynchonellata · Cyrtiidae

Leptaena

Strophomenata · Rafinesquinidae

Naticonema

Gastropoda · Platyceratidae

Euomphalidae

Gastropoda · Euomphalidae

Cyclonema

Gastropoda · Platyceratidae

Pachystrophia

Gastropoda · Holopeidae

Loxonematidae

Gastropoda · Loxonematidae

Murchisonioidea

Gastropoda

Tremanotus

Gastropoda · Bucaniidae

Gastropoda

Amphicoelia

Bivalvia · Ambonychiidae

Bivalvia

Nautiloidea

Cephalopoda

Bumastus

Trilobita · Styginidae

Favosites

Anthozoa · Favositidae

Halysites

Anthozoa · Halysitidae

Fletcheria

Anthozoa · Fletcheriidae

Rugosa

Anthozoa

Records and references

Data: Paleobiology Database collection 13355 (CC BY 4.0) — view the source record

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Questions about Crotalocrinites-Eucalyptocrinites Association of the Gower Formation

Can you collect at Crotalocrinites-Eucalyptocrinites Association of the Gower Formation?

It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.

What minerals are found at Crotalocrinites-Eucalyptocrinites Association of the Gower Formation?

Fossil.

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What to bring

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Source: Paleobiology Database.