Fossil folklore: Echinoderms

Dr Paul D Taylor (UK) The distinct five-fold – or pentameral – symmetry of echinoderms makes them particularly striking fossils. Some even have a vaguely mystical appearance. Modern echinoderms – starfish (asteroids), sea urchins (echinoids), feather stars and sea lilies (crinoids), sea cucumbers (holothurians) and brittle stars (ophiuroids) – are… … Read More