Trilobite cleaned with sandblasting, ± 2,6cms; It is perfect, without any defect. The piece has ± 10.4 x 7.1 cm.
In this period it is very difficult to find fossils of good quality because of the type of rock in which they are found.
Middle Ordovician, Trenton Group
Walcott - Rust Quarry, Gray's Brook, Russia, New York (USA)