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42.585840, -92.890876
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41.895586, -92.276028
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2019
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text
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Mazon Creek, Grundy Co., Ill., Coal Measures
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(1 - 4 of 4)
Title
Neuropteris
PID
grinnell:17028
Title
Neuropteris
PID
grinnell:17029
Title
Pecopteris
PID
grinnell:17049
Title
Pecopteris
PID
grinnell:17048