Definitions for "Crinoids"
Marine invertebrates, such as sea lilies and feather stars, with radiating arms and a stalk by which they are connected to the water's surface
(sea lilies) Flower-like echinoderms. They have a stalk made of calcite disks stacked on top of each other. The disks can be circular or star-shaped. The tops contained a circle of colorful arms that resembled the head of a flower. Fossil remains are found in limestone from Ordovician to Recent times. Whole fossils are rare.
Also known as feather-stars and sea-lilies. Crinoids are a group (class) of echinoderms with many movable arms and often attached to the sea-floor by a long stalk. They have a long fossil history extending back to the Cambrian Period.