Triarthrus eatoni Ptychopariid Trilobite
with Preserved Soft Tissue

Triarthrus eatoniTriarthrus eatoni

Trilobites Order Ptychopariida, Family Olenidae

Geologic Time: Late Ordovician

Size: 13 mm in length

Fossil Site: Lorraine Shale, Lewis County, New York

Theis trilobite was buried rapidly, resulting in an anxonic environment which allowed for infilling with fine-grained pyretic deposits that preserved the soft tissue details seen here. The rich gold color is a striking contrast to the deep black matrix.

RGP120903

Trilobites Family Album