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Geological Survey of Missouri
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264:17 December
523:Categories
219:References
110:, Missouri
476:formation
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245:Q66309335
101:Named for
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241:Wikidata
163:See also
146:Missouri
134:Illinois
115:Named by
80:Missouri
68:Illinois
59:Location
150:fossils
86:Country
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144:, and
142:Kansas
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128:is a
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