Crinoid Dorsal Cup (left) and stem (right)

crinoiddorsalcupleftandstemright.jpg

Seen from above, the circular openings on the top of the dorsal cup are where the Crinoid's arms and spines attached. To the right is a remnant of a crinoid spine. Crinoids are also called Sea Lililes and are animals. Here is a <a href="http://en.wikipedia.org/wiki/Crinoid">wikipedia article</a> with pictures.

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