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Scotch Grove - Buck Creek Quarry, Iowa, USA

Formation	Scotch Grove
Member	Buck Creek Quarry
Age:	433 - 427 Ma Silurian
Interval	Telychian - Homerian
Tectonic Setting	Cratonic basin
Lithology	lime mudstone/wackestone, wackestone/packstone, packstone/grainstone, dolomite
Number of Collections	10
Number of Occurrences	138

Recorded Sample Locations

Location	Region	Stratigraphic Name
Bryozoan-Dicoelosia Community	Jones County, Iowa, USA	Scotch Grove - Buck Creek Quarry
Porpites Community	Benton County, Iowa, USA	Scotch Grove - Buck Creek Quarry
Petalocrinus mirabilis-Pentameroides-Coral Assoc.	Jones County, Iowa, USA	Scotch Grove - Buck Creek Quarry
FF	Johnson County, Iowa, USA	Scotch Grove - Buck Creek Quarry

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Blanding	441 - 433 Ma Silurian	lime mudstone/wackestone, lime mudstone/packstone, wackestone/grainstone, dolomite	56
Hopkinton - Farmers Creek	439 - 433 Ma Silurian	wackestone/packstone, packstone, packstone/grainstone, grainstone/packstone, dolomite	219
Hopkinton - Marcus	441 - 439 Ma Silurian	carbonate	13
Hopkinton - Picture Rock	439 - 433 Ma Silurian	carbonate, dolomite	19
Little Cedar - Rapid	388 - 383 Ma Devonian	wackestone	40
Scotch Grove	433 - 427 Ma Silurian	lime mudstone/wackestone, wackestone, wackestone/lime mudstone, packstone/grainstone	232
Scotch Grove - John Creek Quarry	443 - 433 Ma Silurian	dolomite	6
Scotch Grove - Johns Creek Quarry	439 - 433 Ma Silurian	lime mudstone/wackestone, wackestone	21
Scotch Grove - Welton	433 - 427 Ma Silurian	wackestone, wackestone/packstone, packstone/wackestone, dolomite	294

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Trilobita class	3	Animalia : Arthropoda : Trilobita	433.4 - 427.4 Ma Silurian
Stenopareia sp. genus	6	Animalia : Arthropoda : Trilobita : Corynexochida : Illaenidae : *Stenopareia*	438.5 - 427.4 Ma Silurian
Odontopleuridae family	5	Animalia : Arthropoda : Trilobita : Lichida : Odontopleuridae	433.4 - 427.4 Ma Silurian
Calymene sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : *Calymene*	438.5 - 427.4 Ma Silurian
Cheirurus sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : *Cheirurus*	433.4 - 427.4 Ma Silurian
Encrinurus sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Encrinuridae : *Encrinurus*	433.4 - 427.4 Ma Silurian
Eophacops sp. genus	6	Animalia : Arthropoda : Trilobita : Phacopida : Pterygometopidae : *Eophacops*	433.4 - 427.4 Ma Silurian
Brachiopoda phylum	2	Animalia : Brachiopoda	433.4 - 427.4 Ma Silurian
Atrypa sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : *Atrypa*	433.4 - 427.4 Ma Silurian
Atrypa reticularis species	7	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Atrypa : *Atrypa reticularis*	438.5 - 427.4 Ma Silurian
Orthida order	4	Animalia : Brachiopoda : Rhynchonellata : Orthida	438.5 - 427.4 Ma Silurian
Resserella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dalmanellidae : *Resserella*	438.5 - 427.4 Ma Silurian
Dicoelosia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Dicoelosiidae : *Dicoelosia*	438.5 - 427.4 Ma Silurian
Dolerorthis sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : *Dolerorthis*	438.5 - 427.4 Ma Silurian
Ptychopleurella bouchardi species	7	Animalia : Brachiopoda : Rhynchonellata : Orthida : Hesperorthidae : Ptychopleurella : *Ptychopleurella bouchardi*	433.4 - 427.4 Ma Silurian
Gypidulidae family	5	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Gypidulidae	433.4 - 427.4 Ma Silurian
Pentameroides (Callipentamerus) sp. subgenus	6.3	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Pentameroides : *Pentameroides (Callipentamerus)*	433.4 - 427.4 Ma Silurian
Pentameroides subrectus species	7	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Pentameridae : Pentameroides : *Pentameroides subrectus*	438.5 - 427.4 Ma Silurian
Costistricklandia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Stricklandiidae : *Costistricklandia*	438.5 - 427.4 Ma Silurian
Rhynchonellida order	4	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida	433.4 - 427.4 Ma Silurian
Ferganella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Machaerariidae : *Ferganella*	433.4 - 427.4 Ma Silurian
Spiriferida order	4	Animalia : Brachiopoda : Rhynchonellata : Spiriferida	433.4 - 427.4 Ma Silurian
Eospirifer sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : *Eospirifer*	433.4 - 427.4 Ma Silurian
Hedeina sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Cyrtiidae : *Hedeina*	433.4 - 427.4 Ma Silurian
Strophomenida order	4	Animalia : Brachiopoda : Strophomenata : Strophomenida	433.4 - 427.4 Ma Silurian
Protomegastrophia sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Leptostrophiidae : *Protomegastrophia*	433.4 - 427.4 Ma Silurian
Leptaena sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : *Leptaena*	433.4 - 427.4 Ma Silurian
Brachyprion (Protomegastrophia) profunda species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophodontidae : Megastrophia : *Brachyprion (Protomegastrophia) profunda*	438.5 - 427.4 Ma Silurian
Bryozoa phylum	2	Animalia : Bryozoa	438.5 - 430.5 Ma Silurian
Cryptostomata order	4	Animalia : Bryozoa : Stenolaemata : Cryptostomata	438.5 - 427.4 Ma Silurian
Fenestellidae family	5	Animalia : Bryozoa : Stenolaemata : Fenestrida : Fenestellidae	438.5 - 427.4 Ma Silurian
Trepostomatida order	4	Animalia : Bryozoa : Stenolaemata : Trepostomatida	433.4 - 427.4 Ma Silurian
Paltodus equicostatus species	7	Animalia : Chordata : Distacodontidae : Panderodus : *Paltodus equicostatus*	443.4 - 433.4 Ma Silurian
Paltodus panderi species	7	Animalia : Chordata : Distacodontidae : Panderodus : *Paltodus panderi*	443.4 - 433.4 Ma Silurian
Panderodus unicostatus species	7	Animalia : Chordata : Distacodontidae : Panderodus : *Panderodus unicostatus*	443.4 - 433.4 Ma Silurian
Anthozoa class	3	Animalia : Cnidaria : Anthozoa	438.5 - 430.5 Ma Silurian
Rugosa subclass	3.3	Animalia : Cnidaria : Anthozoa : Rugosa	433.4 - 427.4 Ma Silurian
Tabulata subclass	3.3	Animalia : Cnidaria : Anthozoa : Tabulata	433.4 - 427.4 Ma Silurian
Auloporidae family	5	Animalia : Cnidaria : Anthozoa : Auloporidae	433.4 - 427.4 Ma Silurian
Syringopora sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Syringopora*	433.4 - 427.4 Ma Silurian
Cystiphyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Cystiphyllidae : *Cystiphyllum*	433.4 - 427.4 Ma Silurian
Goniophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Goniophyllidae : *Goniophyllum*	433.4 - 427.4 Ma Silurian
Porpites sp. genus	6	Animalia : Cnidaria : Anthozoa : Tryplasmatidae : *Porpites*	438.5 - 427.4 Ma Silurian
Alveolites sp. genus	6	Animalia : Cnidaria : Anthozoa : Alveolitidae : *Alveolites*	433.4 - 427.4 Ma Silurian
Coenites sp. genus	6	Animalia : Cnidaria : Anthozoa : Coenitidae : *Coenites*	433.4 - 427.4 Ma Silurian
Favosites sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Favosites*	438.5 - 427.4 Ma Silurian
Striatopora sp. genus	6	Animalia : Cnidaria : Anthozoa : Pachyporidae : *Striatopora*	433.4 - 427.4 Ma Silurian
Catenipora sp. genus	6	Animalia : Cnidaria : Anthozoa : Halysitidae : *Catenipora*	433.4 - 427.4 Ma Silurian
Halysites sp. genus	6	Animalia : Cnidaria : Anthozoa : Favositidae : *Halysites*	438.5 - 427.4 Ma Silurian
Heliolites sp. genus	6	Animalia : Cnidaria : Anthozoa : Heliolitidae : *Heliolites*	433.4 - 427.4 Ma Silurian
Plasmopora sp. genus	6	Animalia : Cnidaria : Anthozoa : Plasmoporidae : *Plasmopora*	433.4 - 427.4 Ma Silurian
Streptelasmidae family	5	Animalia : Cnidaria : Anthozoa : Streptelasmidae	438.5 - 427.4 Ma Silurian
Diplophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : *Diplophyllum*	433.4 - 427.4 Ma Silurian
Arachnophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Arachnophyllidae : *Arachnophyllum*	433.4 - 427.4 Ma Silurian
Chonophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Chonophyllidae : *Chonophyllum*	433.4 - 427.4 Ma Silurian
Cyathophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Cyathophyllidae : *Cyathophyllum*	433.4 - 427.4 Ma Silurian
Entelophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Entelophyllidae : *Entelophyllum*	433.4 - 427.4 Ma Silurian
Neozaphrentis sp. genus	6	Animalia : Cnidaria : Anthozoa : Hapsiphyllidae : *Neozaphrentis*	433.4 - 427.4 Ma Silurian
Diphyphyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Lithostrotionidae : *Diphyphyllum*	433.4 - 427.4 Ma Silurian
Ptychophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Arachnophyllidae : *Ptychophyllum*	433.4 - 427.4 Ma Silurian
Pycnostylus sp. genus	6	Animalia : Cnidaria : Anthozoa : Pycnostylidae : *Pycnostylus*	433.4 - 427.4 Ma Silurian
Asthenophyllum sp. genus	6	Animalia : Cnidaria : Anthozoa : Streptelasmatidae : *Asthenophyllum*	433.4 - 427.4 Ma Silurian
Streptelasmatidae family	5	Animalia : Cnidaria : Anthozoa : Streptelasmatidae	433.4 - 427.4 Ma Silurian
Echinozoa subphylum	2.3	Animalia : Echinodermata : Echinozoa	438.5 - 430.5 Ma Silurian
Crinoidea class	3	Animalia : Echinodermata : Crinoidea	438.5 - 427.4 Ma Silurian
Inadunata infraclass	3.5	Animalia : Echinodermata : Crinoidea : Inadunata	438.5 - 430.5 Ma Silurian
Petalocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : *Petalocrinus*	438.5 - 427.4 Ma Silurian
Thalamocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : *Thalamocrinus*	433.4 - 427.4 Ma Silurian
Dimerocrinites sp. genus	6	Animalia : Echinodermata : Crinoidea : Dimerocrinitidae : *Dimerocrinites*	438.5 - 430.5 Ma Silurian
Calliocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Eucalyptocrinitidae : *Calliocrinus*	438.5 - 427.4 Ma Silurian
Macrostylocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Patelliocrinidae : *Macrostylocrinus*	438.5 - 430.5 Ma Silurian
Myelodactylus sp. genus	6	Animalia : Echinodermata : Crinoidea : Myelodactylidae : *Myelodactylus*	433.4 - 427.4 Ma Silurian
Pisocrinus sp. genus	6	Animalia : Echinodermata : Crinoidea : Pisocrinidae : *Pisocrinus*	433.4 - 427.4 Ma Silurian
Bivalvia class	3	Animalia : Mollusca : Bivalvia	433.4 - 427.4 Ma Silurian
Nautiloidea subclass	3.3	Animalia : Mollusca : Cephalopoda : Nautiloidea	433.4 - 427.4 Ma Silurian
Gastropoda class	3	Animalia : Mollusca : Gastropoda	433.4 - 427.4 Ma Silurian
Porifera phylum	2	Animalia : Porifera	433.4 - 427.4 Ma Silurian
Stromatoporoidea class	3	Animalia : Porifera : Stromatoporoidea	433.4 - 427.4 Ma Silurian
Clathrodictyon sp. genus	6	Animalia : Porifera : Clathrodictyidae : *Clathrodictyon*	433.4 - 427.4 Ma Silurian
Stromatopora sp. genus	6	Animalia : Porifera : Stromatoporoidea : Stromatoporida : Stromatoporidae : *Stromatopora*	433.4 - 427.4 Ma Silurian

References

Witzke B. J., Johnson M. E. (1999) Silurian brachiopod and related benthic communities from carbonate platform and mound environments of Iowa and surrounding areas, Paleocommunities--a case study from the Silurian and Lower Devonian, 806-840

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

McAdams N. E. B., Bancroft A. M., et al (2017) Integrated carbon isotope and conodont biochemostratigraphy of the Silurian (Aeronian–Telychian) of the East-Central Iowa Basin, Iowa, USA, Newsletters on Stratigraphy doi:10.1127/nos/2017/0375

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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