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Figure 42
Figure 42--Chart showing Permian rock classifications used in Kansas during the last 25 years. Even more changes are being considered. A, Moore and Landes (1937); B, Moore, Frye, and Jewett (1944); C, Moore and others (1951a); D, Moore and others (1952); E, Jewett (1959); F, Dunbar and others (1960).
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Kansas Geological Survey, Geologic History of Kansas
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Web version Jan. 2009. Original publication date Dec. 1963.
URL=http://www.kgs.ku.edu/Publications/Bulletins/162/fig042.html