. "Burgoon Sandstone" . . . . . "Burgoon Formation" . . . . . "Purslane Sandstone" . "Pocono sandstone" . . . . "Pocono Formation" . . . . . "Purslane Sandstone of the Pocono Formation" . . . . . . . . . "Burgoon" . . "Pocono Formation" . . . "Burgoon sandstone" . "Pocono" .