Figure 2: The Stephen Formation in the vicinity of Marble Canyon.
From: A new phyllopod bed-like assemblage from the Burgess Shale of the Canadian Rockies
(a) Idealized stratigraphic section of the Stephen Formation at Marble Canyon, based on detailed measurements at Marble Canyon and observations at Mount Whymper, showing the location of the Marble Canyon fossil assemblage and quarry. (b) Photograph of the main quarry interval, comprising calcareous claystones. Mic, micrite; Sh, shale; Wac, wackestone. Scale bars, 10 m (a); 50 cm (b).
