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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.
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 ...
Southern and northeastern Arkansas were likewise covered by the sea into the Cretaceous. Local life left behind many fossils. [4] During the Early Cretaceous, the region of Arkansas southeast of the Ouachita Mountains was submerged by the Gulf of Mexico. [8] The invertebrates of Arkansas's Cretaceous sea included clams, echinoids, oysters, and ...
This article about a specific stratigraphic formation in Arkansas is a stub. You can help Wikipedia by expanding it.
Baldwin coal (an informal unit at the top of the Woolsey Member) Brentwood Limestone Member In the eastern parts of the Ozarks in Arkansas, the Bloyd Formation becomes undifferentiated with the underlying Hale Formation and is called the Witts Springs Formation .
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Annona Chalk overlying Ozan Formation at what is now called White Cliffs Natural Area, with the Little River in the foreground, Howard County, AR (c. 1910) Another view of the same location (c. 1902) See also