%0 Journal Article %J Northeastern Geology and Environmental Science %D 2006 %T Pragian to Eifelian Strata (Mid Lower to Lower Middle Devonian), Northern Appalachian Basin -- A Stratigraphic Revision %A C. A. Ver Straeten %A C. Brett %K geology %B Northeastern Geology and Environmental Science %V 28 %P 80-95 %G eng