The trilobite fossils shown are small enough that a microscope is needed to study their details. Pictures were taken with 23x magnification which is a field of view of about 8 mm. The trilobites appear to be Devonian and may be Phacops.
This next picture shows the matrix plate which is about 6 cm in width. The intact trilobite photographed through the microscope is toward the center of the picture.
Next two pictures are of what appears to be a Phacops cephalon. The compound eye can be seen in some detail.
Also found on the plate is a trilobite imprint.
Thanks to Kenny for his prep work on this very small trilobite. The fossils belong to Dave at Views of the Mahantango blog.
