.8" Fossil Crinoid (Phanocrinus) and Brittle Star - Anna, Illinois

Fossil Crinoid (Phanocrinus) and Brittle Star - Anna, Illinois #327284

This is a detailed Phanocrinus formosus crinoid preserved alongside a brittle star fossil, collected from Frailey's Shale near Anna, Illinois. The quality of preparation on this fossil is very nice - using skillful air-abrasion techniques under a stereo microscope.

It comes with an acrylic display stand.

Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum; such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.

About Crinoids