Origin: Muskogee County, Oklahoma, USA

Era: Pennsylvanian Lower

Geological Age: 300 mya

Description: Echinodermata (Blastoidea)

Size approximately: 18mm x 18mm x 16mm
Weight: 8g

Pieces: 1

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.