This is a beautiful US trilobite. It is an adult Trimerus delphinocephalus from Middleport, New York. This specimen was recently acquired from the famous DeRosear Collection. This is the largest and one of the rarer types of trilobites from the Rochester Shale. This specimen is complete and is almost six inches long - very few types of trilobites found in the United States are this large. The specimen has beautiful natural coloration and displays exceptional detail. The thick shell exoskeleton is very well preserved. The bug is almost perfectly centered on the rectangular block, not on the edge of the plate like so many Trimerus. The fossil is also extremely inflated and 3-D for this type. This is a fabulous specimen of Trimerus delphinocephalus, one of the most displayable example we have ever seen.
This fossil was collected and obtained legally, and is also being sold legally.