Two Pyritized Triarthrus Trilobites With Appendages - New York

The localities that preserve trilobites with soft-bodied preservation can probably be counted on one hand. One of these localities is where this specimen is from, the historic Beecher's trilobite beds in the Lorraine Group of New York. Less than a decade ago a new locality was discovered a short distance away that has produced amazing, soft-bodied preservation of trilobites and other organisms. Because of the rapid burial of the trilobites, in an anoxic environment, the soft body parts were replaced by pyrite, preserving details not typically seen.

These are very detailed trilobite specimens, both with legs and partial antennae. One is ventrally preserved and the other is dorsally so. They measure approximately .68" and .5", and are located on a 4 x 2.85" slab of shale.

It comes with an acrylic display stand.