16.8" Silurian Fossil Crinoid (Scyphocrinites) Plate - Morocco

The Scyphocrinites crinoids are quarried around Erfoud, Morocco by digging straight down 16 feet until the layer is reached. Once the crinoid horizon is located, a tunnel is dug along it by hand. The rock, dirt, and crinoid slabs must then be hauled to the surface in baskets, where they are reassembled and prepared. It is a very labor-intensive process to bring a beautiful crinoid plate like this one to market.

Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum; such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.