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This page was last edited on 18 November 2024, at 07:48 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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List of fossiliferous stratigraphic units in Arkansas This page was last edited on 30 November 2014, at 05:58 (UTC). Text is available under the Creative Commons ...
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The Imo Formation, or Imo Shale, is a geologic unit in northern Arkansas that dates to the Chesterian Series of the late Mississippian.The Imo is considered to be a member of the upper Pitkin Formation, and is the most recent Mississippian age rock in Arkansas.
Arkansas: Country: United States: The Bloyd Shale is a geologic formation in Arkansas. ... List of fossiliferous stratigraphic units in Arkansas; Paleontology in ...
The Nacatoch Sand is a geologic formation in Arkansas. ... List of fossiliferous stratigraphic units in Arkansas; Paleontology in Arkansas; References
White Bluff, along the Arkansas River The White Bluff Formation is a marl, sand, and clay geologic formation in Arkansas that is part of the Jackson Group . It preserves fossils dating back to the Paleogene period , specifically the Eocene .