Conodont-based determination of the Silurian-Devonian boundary in the Valley and Ridge province, northern and central AppalachiansKirk Endres Denkler · First published 1988Open the Tome
Homeognathodus peniculus (Conodonta), a new earliest Pridolian index species, and the Ludlovian-Pridolian boundary in the central Appalachian basinKirk Endres Denkler · First published 1988Open the Tome
