Scolecodonts from the Erindale, Upper Ordovician, at Streetsville, Ontario

Abstract

[From introduction:] Close to the water’s edge at Streetsville, Ontario, on the Credit River, occur sandstone layers of the Erindale member of the Meaford formation (Cincinnatian series of Ordovician age), which are extremely rich in scolecodonts, or the fossil jaws of polychaete worms. The surface of some of the layers is darkened by their presence and more than five hundred jaws or fragments of jaws were counted from a single square inch (plate IV). It is surprising that this locality is not better known since it is situated within a few miles of Toronto.