They looked like feathery arms, and they are the reason that crinoid are often called sea lilies.

External molds of crinoids, plant-like animals related to starfish also known as "sea lilies,"

These do not feed and after a few days settle on the seabed and undergo metamorphosis into juvenile sea lilies.

In studies by cameras mounted on submersibles, it has been found that sea lilies can drag themselves along the seabed by their arms.

Some of these living fossils, like the sea lilies, have been placidly passing the eons in the watery darkness since long before the dinosaurs ruled.

Sea stars and sea lilies readily lose and regenerate their arms.

Iocrinus is an extinct genus of crinoid (sea lilies and feather stars).

Members of this order are attached to the seabed by a slender stalk and are known as sea lilies.

There are fossils in the rocks such as sea lilies, water fleas and shellfish.

These creatures, like the ammonites, have had their day, but a few species known as sea lilies still survive in the ocean depths.