Pg. 109. Birdsville formation. Shales, sandstones, and thin limestones, composing upper formation of Chester group. Overlies Tribune limestone and underlies [unconformably] Mansfield sandstone (Pennsylvanian). [Age is Mississippian.]
[Named from Birdsville, Livingston Co., western KY.]
Source: US geologic names lexicon (USGS Bull. 896, p. 192).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
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