Figure 1. Unidentified starfish (7/8 inch across) and crinoid (1 1/4 inches long), Ordovician, Rust Formation, Russia, New York. Prepared by Ben Cooper.
Figure 1. Unidentified starfish (7/8 inch across) and crinoid (1 1/4 inches long), Ordovician, Rust Formation, Russia, New York. Prepared by Ben Cooper.