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Cedar Valley, USA

Formation	Cedar Valley
Member(s)	Iowa City Rapid Solon
Age:	388 - 372 Ma Devonian
Interval	Eifelian - Givetian
Number of Collections	3
Number of Occurrences	55

Recorded Sample Locations

Location	Region	Stratigraphic Name
Rockford	Mower County, Minnesota, USA	Cedar Valley
Vogel Quarry [Rapid Mbr	Johnson County, Iowa, USA	Cedar Valley - Rapid
quarry 2 miles south of Urbana	Benton County, Iowa, USA	Cedar Valley - Solon
FI 4 Brachiopods C MO	Callaway County, Missouri, USA	Cedar Valley
Sweetland Creek Quarry	Muscatine County, Iowa, USA	Cedar Valley - Iowa City
Pint's Quarry	Black Hawk County, Iowa, USA	Cedar Valley - Rapid

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Cedar Valley - Iowa City	388 - 383 Ma Devonian	limestone	1
Cedar Valley - Rapid	388 - 383 Ma Devonian	limestone, dolomite	12
Cedar Valley - Solon	388 - 384 Ma Middle Devonian	limestone	5
Lime Creek	383 - 372 Ma Late/Upper Devonian		22
Lime Creek - Cerro Gordo	383 - 372 Ma Late/Upper Devonian	shale, "shale"/"limestone"	428
Lime Creek - Cerro Gordo subst.	383 - 372 Ma Late/Upper Devonian		23
Cedar Valley - Shell Rock	383 - 372 Ma Late/Upper Devonian		30
Cedar Valley - Shell Rock - Rock Grove	383 - 372 Ma Late/Upper Devonian	limestone/dolomite	34

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Arabellites sp. genus	6	Animalia : Annelida : Polychaeta : *Arabellites*	387.7 - 382.7 Ma Devonian
Diopatraites sp. genus	6	Animalia : Annelida : Polychaeta : *Diopatraites*	387.7 - 382.7 Ma Devonian
Lumbriconereites sp. genus	6	Animalia : Annelida : Polychaeta : *Lumbriconereites*	387.7 - 382.7 Ma Devonian
Petrocrania sp. genus	6	Animalia : Brachiopoda : Craniata : Craniida : Craniidae : *Petrocrania*	387.7 - 382.7 Ma Devonian
Athyris sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Athyridida : Athyrididae : *Athyris*	387.7 - 382.7 Ma Devonian
Meristella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Athyridida : Meristellidae : *Meristella*	387.7 - 382.7 Ma Devonian
Desquamatia (Independatrypa) sp. subgenus	6.3	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : Desquamatia : *Desquamatia (Independatrypa)*	387.7 - 382.7 Ma Devonian
Pseudoatrypa sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : *Pseudoatrypa*	387.7 - 382.7 Ma Devonian
Spinatrypa sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Atrypida : Atrypidae : *Spinatrypa*	387.7 - 382.7 Ma Devonian
Rhipidomella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Rhipidomellidae : *Rhipidomella*	387.7 - 382.7 Ma Devonian
Schizophoria sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Orthida : Schizophoriidae : *Schizophoria*	387.7 - 382.7 Ma Devonian
Pentamerella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Clorindidae : *Pentamerella*	387.7 - 382.7 Ma Devonian
Gypidula sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Pentamerida : Gypidulidae : *Gypidula*	387.7 - 382.7 Ma Devonian
Hadrorhynchia sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Hadrorhynchiidae : *Hadrorhynchia*	387.7 - 372.2 Ma Devonian
Lorangerella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Hypothyridinidae : *Lorangerella*	387.7 - 372.2 Ma Devonian
Atribonium sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Rhynchonellida : Stenoscismatidae : *Atribonium*	387.7 - 382.7 Ma Devonian
Allanella sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Adolfiidae : *Allanella*	387.7 - 372.2 Ma Devonian
Elita sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Elythidae : *Elita*	387.7 - 382.7 Ma Devonian
Tylothyris sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Mucrospiriferidae : *Tylothyris*	387.7 - 382.7 Ma Devonian
Eosyringothyris sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : *Eosyringothyris*	387.7 - 382.7 Ma Devonian
Orthospirifer sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferida : Spinocyrtiidae : *Orthospirifer*	387.7 - 382.7 Ma Devonian
Cyrtina sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Spiriferinida : Cyrtinidae : *Cyrtina*	387.7 - 382.7 Ma Devonian
Cranaena sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Cranaenidae : *Cranaena*	387.7 - 382.7 Ma Devonian
Cranaena romingeri species	7	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Cranaenidae : Cranaena : *Cranaena romingeri*	387.7 - 382.7 Ma Devonian
Newberria sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Stringocephalidae : *Newberria*	387.7 - 382.7 Ma Devonian
Schuchertella sp. genus	6	Animalia : Brachiopoda : Strophomenata : Orthotetida : Schuchertellidae : *Schuchertella*	387.7 - 382.7 Ma Devonian
Productella sp. genus	6	Animalia : Brachiopoda : Strophomenata : Productida : Productellidae : *Productella*	387.7 - 382.7 Ma Devonian
Douvillina arcuata species	7	Animalia : Brachiopoda : Strophomenata : Strophomenida : Douvillinidae : Douvillina : *Douvillina arcuata*	393.3 - 382.7 Ma Devonian
Nervostrophia sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Leptostrophiidae : *Nervostrophia*	387.7 - 382.7 Ma Devonian
Leptaena sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Rafinesquinidae : *Leptaena*	387.7 - 382.7 Ma Devonian
Pholidostrophia sp. genus	6	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophodontidae : *Pholidostrophia*	387.7 - 382.7 Ma Devonian
Strophomena (Strophodonta) sp. subgenus	6.3	Animalia : Brachiopoda : Strophomenata : Strophomenida : Strophodontidae : *Strophomena (Strophodonta)*	387.7 - 382.7 Ma Devonian
Icriodus sp. genus	6	Animalia : Chordata : Icriodontidae : *Icriodus*	387.7 - 382.7 Ma Devonian
Icriodus latericrescens species	7	Animalia : Chordata : Icriodontidae : Icriodus : *Icriodus latericrescens*	388.1 - 383.7 Ma Middle Devonian
Icriodus subterminus species	7	Animalia : Chordata : Conodonta : Conodontophorida : Icriodontidae : Icriodus : *Icriodus subterminus*	387.7 - 382.7 Ma Devonian
Polygnathus decorosus species	7	Animalia : Chordata : Conodonta : Ozarkodinida : Polygnathidae : Polygnathus : *Polygnathus decorosus*	387.7 - 382.7 Ma Devonian
Polygnathus xylus species	7	Animalia : Chordata : Conodonta : Ozarkodinida : Polygnathidae : Polygnathus : *Polygnathus xylus*	387.7 - 382.7 Ma Devonian
Dinichthyidae family	5	Animalia : Chordata : Osteichthyes : Arthrodira : Dinichthyidae	387.7 - 382.7 Ma Devonian
Onychodus sp. genus	6	Animalia : Chordata : Osteichthyes : Onychodontiformes : Onychodontidae : *Onychodus*	387.7 - 382.7 Ma Devonian
Ptyctodopsis menzeli species	7	Animalia : Chordata : Osteichthyes : Ptyctodontida : Ptyctodontidae : Ptyctodopsis : *Ptyctodopsis menzeli*	387.7 - 382.7 Ma Devonian
Ptyctodus sp. genus	6	Animalia : Chordata : Osteichthyes : Ptyctodontida : Ptyctodontidae : *Ptyctodus*	387.7 - 382.7 Ma Devonian
Rhynchodus sp. genus	6	Animalia : Chordata : Osteichthyes : Ptyctodontida : Ptyctodontidae : *Rhynchodus*	387.7 - 382.7 Ma Devonian
Eocaudina septaforaminalis species	7	Animalia : Echinodermata : Holothuroidea : Dendrochirotida : Calclamnidae : Eocaudina : *Eocaudina septaforaminalis*	388.1 - 383.7 Ma Middle Devonian
Euomphalus cyclostomus species	7	Animalia : Mollusca : Gastropoda : Euomphalidae : Philoxene : *Euomphalus cyclostomus*	387.7 - 382.7 Ma Devonian
Pseudopalmula sp. genus	6	Chromista : Foraminifera : Pseudopalmulidae : *Pseudopalmula*	388.1 - 383.7 Ma Middle Devonian
Semitextularia sp. genus	6	Chromista : Foraminifera : Globothalamea : Textulariida : Semitextulariidae : *Semitextularia*	388.1 - 383.7 Ma Middle Devonian

References

Martin W. R. (1952) Holothuroidea of the Iowa Devonian, Journal of Paleontology 26 5, 728-729

Straka II J. J., Semken Jr H. A. (1969) A dinichthyid in Middle Devonian of Iowa, Journal of Paleontology 43 6, 1423-1428

Gutschick R. C., Canis W. F. (1971) The Holothurian Sclerite Genera Cucumarites, Eocaudina, and Thuroholia: Re-Study of Eocaudina and Protocaudina from the Devonian of Iowa, Journal of Paleontology 45 2, 327-337

Linsley R. M., Yochelson E. L. (1973) Devonian carrier shells (Euomphalidae) from North America and Germany, United States Geological Survey Professional Paper 824, 1-23

Denison R. H. (1985) A new ptyctodont placoderm, Ptyctodopsis, from the Middle Devonian of Iowa, Journal of Paleontology 59 3, 511-522

Day J. (1996) Faunal signatures of Middle-Upper Devonian depositional sequences and sea level fluctuations in the Iowa Basin: US Midcontinent, Paleozoic Sequence Stratigraphy: Views from the North America Craton: Boulder, Colorado, Geological Society of America Special Paper 306 306, 277-300

Rode A. L., Lieberman B. S. (2004) Using GIS to unlock the interactions between biogeography, environment, and evolution in middle and Late Devonian brachiopods and bivalves, Palaeogeography, Palaeoclimatology, Palaeoecology 211 3-4, 345-359

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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