Crinoid Mortality Plate- Indiana, USA (with stand)Crinoids began life some 530 million years ago. They are plant like sea creatures, some of which either root themselves underwater or gently float along the sea bed, gathering tiny organisms for nourishment. Crinoids often resemble flowers planted in the sea floor, giving them their name from the Greek word for "Lilly." Crinoids are remarkably adaptable animals and they are a good example of what is referred to as a "living fossil", as many different