Fossil Echinidea Small 320×305 Medium 640×611 Large 1024×977 Download Tiff Original 2400×2290 | (1.0 MB) Description "Palaechinus sphaericus, Scouler; Carbouiferous, Ireland." — Encyclopedia Britannica, 1893 Keywords Carouiferous, Echinidea, fossil, Palaechinus, Scoulet, sea star, Sphaericus, star Galleries Sea Urchins and Sea Stars Source: The Encyclopedia Britannica, New Warner Edition (New York, NY: The Werner Company, 1893)
