Calibration of a conodont apatite-based Ordovician 87Sr/86Sr curve to biostratigraphy and geochronology: Implications for stratigraphic resolution - Saltzman, M.; Edwards, C.; Leslie, S.; Dwyer, Gary S.; Bauer, J.; Repetski, John; Harris, A.; Bergstrom, S. (GSA Bulletin, 2014)