Crinoids have graced the oceans for more than 500 million years. Among the most attractive fossils, crinoids had a key role in the ecology of marine communities

Collector's Guide to Fort Payne Crinoids and Blastoids is the first comprehensive guide for identifying the fossils of echinoderms from hundreds of millions of

This bulletin results from studies begun many years ago to clarify the record of the crinoid forms discussed herein and the confusion growing out of the excessi