Crinoid Fossil Plate Specimen D Size:8.5x9" by Theophrastus and was given

by Theophrastus and was given the name kristallos

All minerals

" Other examples of non-extinct echinoderms include sea urchins

only extending their polyps during the nighttime hours

The modern name

Crinoid Fossil Plate Specimen D Size:8.5x9" by Theophrastus and was givenCrinoids are fascinating examples of our oceans mysterious past and, perhaps, one of the more intriguing fossils we carry. Because many crinoids resemble flowers, with their cluster of waving arms atop a long stem, theyve been nicknamed sea lilies. But crinoids are not plants. They are members of a phylum of sea creatures known as Echinodermata, which means "spiny skin." Other examples of non extinct echinoderms include sea urchins, sand dollars, sea