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Carboniferous - Minnekahta limestone; Opeche formation; Minnelusa sandstone; Pahasapa limestone (2) |
Geology -- United States --Maps (2) |
Jurassic - Sundance formation (2) |
Neogene - unnamed strata (2) |
Triassic - Spearfish formation (2) |
Cambrian - Deadwood formation (1) |
Carboniferous - Minnekahta limestone; Opeche formation; Minnelusa sandstone (1) |
Cretaceous - Laramie formation; Fox Hills formation; Pierre shale; Niobrara formation; Carlile formation; Greenhorn limestone; Graneros formation; Dakota sandstone; Fuson formation; Lakota sandstone; Morrison shale (1) |
Cretaceous - Pierre shale; Niobrara formation; Carlile formation; Greenhorn limestone; Graneros shale; Dakota sandstone; Fuson formation; Lakota formation; Morrison formation (1) |
Cretaceous - Pierre shale; Niobrara formation; Carlile formation; Greenhorn limestone; Graneros shale; Dakota sandstone; Fuson formation; Minnewaste formation; Lakota formation; Morrison formation (1) |