Bell Shale of Traverse Group (MI*)
Middle Devonian*
Type locality not mentioned by Grabau (1902) but he probably named formation from claypits (now abandoned) near former settlement of Bell. Workings still visible along country road in SE/4 sec. 11, T. 33 N., R. 8 E., Presque Isle Co., northeastern MI. Bell was situated on False Presque Isle Harbor, in sec. 13, T. 33 N., R. 8 E., Bell Post Office was in southeast corner NE/4 sec. 34, same township (Warthin and Cooper, 1943).
Michigan basin*
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Asterisk (*) indicates published by U.S. Geological Survey authors.
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