“…fossil report, 1974;Till and Dumoulin, 1994). DSl has also yielded corals thought to be of probable Middle or Late Devonian age (Oliver and others, 1975); the age of this collection was later revised to late Silurian (late Ludlow)-early Late Devonian (Frasnian), probably late Silurian to Early Devonian, by A. Pedder (Dumoulin and Harris, 1994;Till and Dumoulin, 1994 Harris, 1994), corals (Oliver and others, 1975; R.J. Elias in Blodgett and others, 2002, p. 283), trilobites (Ormiston, 1978;Ormiston and Ross, 1979), and brachiopods, cephalopods, gastropods, ostracodes, pelecypods, and stromatoporoids (Sainsbury, 1969a;Sainsbury and others, 1971;Rohr, 1979Rohr, , 1988Potter, 1984;Rohr and Potter, 1987;Rohr and others, 2003). Rugose corals (Bighornia) indicate a possibly Richmondian age (Dumoulin and Harris, 1994).…”