Description
Crinoid, coral, blastoid multi-plate.
Age: Mississippian/Osagean (approximately 345 million years)
Formation: Edwardsville
Location: Crawfordsville, Montgomery County, Indiana, USA
Matrix Dimensions: 8.5″ long x 6.5″ wide x 2.55″ thick
Weight: 5.9 lbs
https://geoclassics.com/product-category/fossils/crinoids/