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Data sets Publications Expeditions Thesaurus
Cedar Valley Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Middle Devonian
 .....Cedar Valley Formation
RTIowa
 Illinois
 Minnesota
SNIncludes Linwood, Littleton, Coralville, Solon and Rapid members. E Iowa, SW Illinois, and SE Minnesota.