This is a large enrolled trilobite. It is a HUGE Pliomera fischeri from Russia. This specimen is about the size of a golf ball! It is nicely enrolled and very well articulated. The bug has great color and detail, and the free cheeks are intact and tight. And there is even a rare bonus - the hypostoma (mouthplate) is exposed! This is a VERY collectible enrolled trilobite from Russia.