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Appalachian Valley Arbuckle Caney Arbuckle limestone Arbuckle Mountains Arbuckle region ARBUCKLE UPLIFT Arkansas Arkansas novaculite Arkansas Valley Atoka formation beds black shale boulder zone Bromide Brushy Creek Canadian Caney fauna Caney fossils Caney shale Caneyella Carboniferous chert collections Compton Cut conclusion correlation crinoid deposits Devonian evidence exposures feet fossiliferous boulders fossils fossils found fragments Geological Survey geologists Honess Hot Springs sandstone J. A. Taff Jackfork and Stanley Jackfork sandstone Johns Valley shale lithologic localities Lower Jackfork McAlester McCurtain County Mississippian Mississippian age Moorefield Morrow fauna Morrow group Mountains of Oklahoma novaculite occur Okla oolitic Ordovician Ouachita area Ouachita basin Ouachita Caney boulders Ouachita Caney shale Ouachita Mountains outcrops Paleozoic Pottsville probably scratches shaly Silurian species Sphenopteris Sphenopteris cf Stanley and Jackfork STANLEY FORMATIONS Stanley shale stratigraphic Survey Bull Sycamore limestone Taff and Ulrich Taff's Tennessee thickness tion Trizonoceras Tuskahoma Upper Jackfork Viola Wapanucka Wapanucka limestone Woodford chert