Crinoids, also known as sea lilies, are related to starfish, sea urchins, and sea cucumbers. They are still alive today, though they are not as common or as large as they were during the Paleozoic. Many crinoids, including the oldest forms, attach themselves to the seafloor with a long stalk made up of stacks of calcareous rings called ossicles; others, called “feather stars”, are free-floating. Cut by Gary Wilson. Measures 47x21mm.

Fossilized Crinoid F263

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