Ediacaran fossils from the Miette Group, Rocky Mountains, British Columbia, Canada

The discovery of metazoan fossils in the upper part of the Hadrynian Miette Group (Windermere Supergroup) extends the range of the cosmopolitan Ediacara fauna (late Vendian) to a new region, and brings to six the number of genera now known in western North America. The fossils, provisionally identified as Cyclomedusa davidi?, Irridinitus sp., and Protodipleurosoma sp., occur in a greenish-gray, shallow-water siltstone that surrounds stromatolite mounds established on the Yellowhead Platform in the Mount Robson Provincial Park. The locality is stratigraphically about 330 m below the unconformably overlying McNaughton Formation (Gog Group) of probable Cambrian age.