This is an EXTREMELY IMPRESSIVE crinoid holdfast (root fossil) of a Silurian age crinoid. The species is Eucalyptocrinites and the large stone block includes associated fossils of not just the root system as most have, but parts of the crinoid stem and head, as well! The fossil has only been cleaned with air abrasive and no repair or restoration has been performed. A large and impressive specimen!
Due to the weight and size, the shipping costs seem prohibitive but we have priced this low enough to still make its purchase attractive.