Devonian Period

Erfoud Region Morocco

Weight 700g

Measuring approximately 100mm diameter  x 55mm depth. You will receive actual piece shown in pictures.

These unique crinoids are believed to have floated with the currents with the calyx (head) facing down. The Lobolith was chambered and filled with some form of gas produced by the crinoid. The gas caused the crinoid to float and could probably be regulated to allow the crinoid to move up and down in the water column allowing it to feed.