| Country of Origin | United States |
|---|
Check the listing for details. Fossiliferous Limestone with Shell Fossils – Oklahoma – Natural Specimen. Condition: New, Made in United States. Listed at 9.99 USD. Natural fossiliferous limestone collected from the Illinois River area in central Oklahoma. This specimen contains visible marine shell fossils embedded in limestone, likely dating to the Pennsylvanian Period (~300 million years old) when Oklahoma was covered by shallow seas. Water-worn and naturally shaped by river action, making it a great display piece for fossil collectors, geology enthusiasts, classrooms, or curiosity cabinets.
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