The Proceedings of the Eighth International Conference on Creationism (2018)

laterally or vertically bound the Coconino, are thought by most to be partly or completely marine. Below the Coconino, Blakey (1984) has reported marine sand waves within the Schnebly Hill Formation that in turn grade into typical Coconino lithologies. In the Grand Canyon region, a transitional contact between the water- laid Hermit and the Coconino occurs along Tanner Trail (McKee, 1934) and in some places in Parashant Canyon (Fisher, 1961). Laterally , the Coconino grades into water-deposited sediments. Peirce et al. (1977) describe what they think is an west to east transition of mostly eolian to mostly water-deposited Coconino along the Mogollon Rim. They report that nearly all of the 90 m of Coconino exposed near Show Low, in east central Arizona, was water deposited. West of a line from about Sedona to Page, the Coconino “intertongues with and is overlain by the Toroweap” Whitmore and Strom ◀ Angular K-feldspars in ancient sandstones ▶ 2018 ICC 642 Figure 13. Areal extent of the Pennsylvanian-Permian sandstone sheet that can be correlated as a more or less continuous unit in the western United States that includes the Coconino Sandstone (in Arizona). In general, formations to the north are Pennsylvanian and those to the south are Permian. Preliminary work by Whitmore (2016).