This is a very nice specimen of Calymene niagarensis from the Rochester Shale of New York State. This bug is wonderfully outstretched and extremely well-articulated. It is very 3-dimensional and exhibits fine detail. The trilobite has great color and contrasts beautifully with the grey matrix. It displays strikingly on the plate of shale matrix. This is a very pretty specimen of Calymene niagarensis.