Radnoria Silurian Trilobite from New York

Description: This trilobite is a member of the Order Proetida, Family Brachymetopidae from the Silurian Clinton Group Rochester Formation deposits near Rochester, New York, known as Radnoria. These small trilobites are not very common; complete specimens are even less often seen. This one has tightly attached librigenae, and is quite 3-D in preservation, positioned near the edge of this fine shale matrix plaque.