...Figure 1 —Geological context of the Elk Mound Group and St. Lawrence Formation of Wisconsin and the Potsdam Group of New York, Quebec, and Ontario. 1 , Laurentia in the late Cambrian (Furongian) with the locations of field sites starred along the shoreline; 2 , outcrop map of the Potsdam Group...

...Figure 1. Elk Mound Group channel deposits where traces and body fossils of their producers co-occur. A) Large channel cutting through an Elk Mound Group tidal flat. Rock hammer (arrowed) is 28 cm long. B) Part of a large phyllocarid-bearing slab from the horizon that infills the surface visible...

...F igure 1 Protichnites eremita Form 2, Trackways A and B, Elk Mound Group, Blackberry Hill, Wisconsin, PRI Station 3421. 1 , PRI 10143, both trackways shown, Trackway B exhibits a sharp right turn whereas Trackway A exhibits a gentle turn; segmentation present in the intermittent medial...

..., trace fossils from the Late Cambrian Elk Mound Group of Wisconsin illustrate how some arthropods might have managed to withstand the vicissitudes of subaerial exposure—by using foreign shells like hermit crabs. This behavior is suggested by trackways (Protichnites eremita isp. nov.), which have “tail...

... and morphologically to coeval scyphomedusae from the Elk Mound Group of Wisconsin and were likely stranded on a sand flat. Soft-tissue preservation in such sandstones is rare, except in Ediacaran Konservat-Lagerstätten. Although subtidal facies are abundant and continental facies are present in the Potsdam, soft...