This is an exceptional ASAPHISCUS wheeleri Trilobite from the famous Trilobite beds in Delta Utah. It is a classic trilobite from a classic location.
Not a common trilobite and a very nicely inflated specimen.
The exoskeleton is very thick which is not usually the case with these trilobites. It measures 1 1/2 inches long by 15/16th inch wide. It is set on a rectangular gray matrix of 3 1/4 inches by 2 1/2 inches.
the trilobite is black in color.
Along with the complete ASAPHISCUS there is an ASAPHISCUS pygidium (tail) and what looks to be another at least partial ASAPHISCUS partially still in matrix. There is also a very small patch of Pyrite on the thoracic segments.
This is the specimen you will receive.
Delta County, Utah