- Xenasaphus devexus
- Ordovician Age
- Asery Level Formation
- Wochow River
- St. Petersburg Region, Russia
- The overall size of this plate is approx. 18.5″ x 23″ in size. This is a very pretty mass mortality plate that comes on the custom made steel stand and ID Tag as shown. This is a great specimen that will fit in any trilobite collection, or as a decorator piece!
Asaphus is a genus of trilobites, that is known from the Lower (upper Arenig) and Middle Ordovician of northwestern Europe (Sweden, Estonia, Saint Petersburg Area).