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[[left margin, circled]] 6 [[/circled]] [[left margin]] 347c- [/left margin]] 6614- about 3' above base of Mason City Williams Qy., NW SW 28-96N-18W,SE of Nora Springs [[left margin]] 347d= [[/left margin]] 6615- Hy D, Bridge Winnebago River SW edge of Rockford, SW 1/4 NW 1/4 15-95N-18W, Floyd Co., Iowa - ulsterensis zone of Rock Grove member. Top of Nora Prismatophyllum from Mason City [[left margin]] 347e= [[/left margin]] 6616- SWSW28-96N-18W E. Bank Shellrock River Upper part Mason City. Strom zone at bottom. - 2 Stroms collected [[left margin]] 347f [[/left margin]] 6617- Uppermost 2' of Mason City, in stream NE 1/4 SW 1/4 28'-96N-18W, just N of Williams Quarry. [[left margin]] 347g= [[/left margin]] 6618- Under bridge on old Mason City Rd in Nora Springs - about 50' up in Mason City, Idiostroma-Pachy phyllum zone. SW 1/4 SE 1/4 7-96N-18W. [[left margin]] 347h [[/left margin]] 6619- Top of Mason City, at Dam in Nora Springs