Origin: Muskogee County, Oklahoma, USA
Era: Pennsylvanian Lower
Geological Age: 300 mya
Description: Echinodermata (Blastoidea)
Size approximately: 18mm x 18mm x 16mm
We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.