Pyritized Triarthrus Trilobite with Soft Tissue Preservation

Triarthrus eatoni

Trilobites Order Ptychopariida, Family Olenidae

Geological Time: Late Ordovician

Size: mm (25.4mm=1 inch): Trilobite is 9 mm long on a 38 mm by 34 mm matrix.

Fossil Site: Lorraine Shale, Lewis County, New York

Code: PYT01

Price: Sold


Triarthrus eatoni trilobitesDescription: With only about a half dozen localities known, trilobites with soft tissue preservation are rare. A well-known site in the United States is Beecher’s Trilobite bed where examples of Triarthrus, Cryptolithus, and Cornuproetus are known. In 2005 a new location in Lewis County was discovered which will take its place in this select group. As a site containing Triarthrus eatoni with preserved appendages. These trilobites were buried rapidly, resulting in an anxonic environment which allowed for infilling with fine-grained pyretic deposits that preserved the details seen here. The rich gold color is a striking contrast to the deep black matrix, making for a dramatic specimen available in very limited quantities. This fine example is preserved in dorsolateral aspect with antennae and limbs in evidence.

Trilobite Fossil Sales

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