This is a beautiful example of a rare trilobite. It is a Subasaphus platyurus from Russia. This is probably the nicest one of these we have seen. It is easy to see the differences between this type and the more common Russian Asaphids - this type has genal spines, for example. This trilobite is complete and is almost perfectly articulated. It has great natural color and very fine detail. The bug is nicely centered on the buff-colored matrix block, with a cystoid (Echinosphaerites sp.) also on the plate. And at four inches long, it is one of the largest of this type we have seen. This is a museum quality example of this very unusual Russian trilobite.