Crawfordsville Cladid Crinoid and Ophiuoid Starfish Fossil Association

Description: Well-preserved example of the Cladid crinoid Sarocrinus varsovensis (Family Zeacrinitidae), The crinoid is very three-dimensional in aspect, with preservation of the fine pinnules quite evident. This is a fine example of the variety of diverse crinoids to be found in the Crawfordsville deposits. The other Echinoderm is a member of the Ophiuroidea or Brittlestars known as Onychaster flexilis. Intact starfish are rarely found. Studies have shown them to fall apart within 24 hours of death if not rapidly buried. This particular type of starfish is often found in association with crinoids with which they lived symbiotically. Here is a unique opportunity to add a pair of fine Echinoderms to your collection.