Here is a very detailed Cyistiod specimen of the species Pleurocystites squamosus from the Bobcaygeon formation of Simcoe Country in Canada. | |||
Location: | Simcoe Ontario Canada | ||
| Size of Plate: | about 126 x 82 mm | ||
| Age: | Ordovician, Bobcaygeon formation (ca. 470 Mill. Years) | ||