Name:
Triarthrus eatoni
Age: Upper Ordovician
Formation: Lorraine Group, Whetstone Gulf Formation
Location: Lewis County, New York
Size: Trilobite is 0.5" including antennae
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This is the kind of trilobite that every collector dreams about! It is a beautiful Triarthrus eatoni from the Lorraine Group, Whetstone Gulf Formation of upstate New York. This inflated trilobite was prepared slowly, hoping against hope to expose some soft parts of the trilobite. Although only one in hundreds(?) of trilobites in general have traces of soft parts preserved, this specimen was one of the lucky ones! A very distinct row of appendages are exposed and readily seen in the photos. BOTH ANTENNAE are also preserved and easily seen with the naked eye! There is also a cool fossil sponge preserved on the plate. There have been very, very few trilobites ever found in the fossil record with this much detail of the delicate soft parts. This is a very collectible example of a ventral trilobite displaying rarely-seen appendages and both antennae.
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