This is an uncommon European trilobite. It is a Conocoryphe gerlinda from the Czech Republic. Although the Conocoryphe species C. sulzeri has been found for decades, this species (C. gerlinda) is very hard to find. This specimen is complete and has good natural color and detail (the tiny pustules on the cephalon are fully intact). This is a very nice Conocoryphe gerlinda.