Age: Kukruse Horizon, Upper Ordovician (465 million year ago). This is a rare and exotic trilobite. It is the nice natural fossil from Ordovician limestones for any collection.We ourselves dig and prepare from simple to the most rare ordovician trilobites of the St. Petersburg region about 25 years. Powered by SixBit's eCommerce Solution. The item "ATRACTOPYGE XIPHERES Trilobite Russian RARE EXOTIC BIG SIZE" is in sale since Saturday, August 31, 2019. This item is in the category "Collectibles\Rocks, Fossils & Minerals\Fossils\Arthropods\Trilobites". The seller is "russiantrilobites" and is located in 53000. This item can be shipped worldwide.