Incredible piece, cleaned with sandblasting (hence all the details have been removed), with antennas and legs, of about + 10 × 7 cm. The trilobite measures ± 3.5 cm, with antennas included, is mineralized in pyrite.
Of the few species found in the fossilized arthropod, it is shown by the antennae that come out from below, since most are silent (exoskeleton).
Late Ordovician, Whetstone Gulf Formation
Lewis County,N. York State,USA