Beautifully preserved crinoids

Artists impression of 420m yr old crinoids

Crinoid

Product description

Species Caryocrinites ornatus from the Silurian, Rochester State, New York. They are Paleozoic, 420 milllion years old, and it is unusal in that two of these creatures are on the one plate. They have a distinctive rhomboid pattern of pores or slits and these were used for respiration. They have good colour, and contrast with the shale matrix.