Short description: Doyle (Towanda limestone and Holmesville shale) Shale exposed along lake shore, with base of Towanda limestone at 349 m (1145 ft); stromatolitic bed at base of Towanda limestone is poorly developed; thin-bedded, dense limestones in upper Towanda contain abundant bivalve molds, Permorphorus, some are butterflied indicating rapid burial; 2.5 m (+8.2 ft) of Towanda limestone and 2.3 m (7.5 ft) of yellowish-brown, grayish-green, and maroon mudrocks of upper Holmesville shale; two digital photos; center of NW1/4, SW1/4, Sec. 24, T.11S., R.4E., Geary Co., KS.
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