EXTINCT CRINOID FOSSIL PLAQUE. Southern Morocco, circa 417-345 million years old. Textural relief, and well preserved crinoids (also known as sea lilies). Measures approx. 25" x 22". Estimate $1,000-2,000
PROVENANCE: Private collection Washington, D.C.
Crinoids are marine invertebrates that with flower like calyxes used to sift plankton from seawater for food. The fossilization of this colony was caused by a catacysmic natural occurrence such as an undersea volcanic eruption approximately 450 million years ago.