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Hill, Robert T. (1891). "The
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278:: 27. Archived from
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474:Cretaceous Arkansas
228:Paleontology portal
175:dating back to the
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161:geologic formation
157:Kiamichi Formation
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69:Goodland Formation
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328:17 December
468:Categories
418:Cretaceous
311:: 504–515.
289:2018-01-12
247:References
177:Cretaceous
29:Cretaceous
357:formation
83:Lithology
75:Thickness
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39:Formation
186:See also
165:Arkansas
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98:Location
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