The trilobite is 34 mm in length on a 110 x 100 mm plate of Pioche Shale. It is from the Uppermost Lower Cambrian, Combined Metals Member of the Pioche Shale, Lincoln County, Nevada. A superb large and 3D specimen of this iconic Nevada trilobite. It is known by the local collectors as a “butterfly of the sea”, because of its wide body and long flowing thoratic spines. Even the opistohrorax is preserved on this rarely found species.
|Ruin Wash, Lincoln Co., Nevada, USA|
|Size matrix:||about 110 x 100 m|
|Age:||Spätes Unter- Kambrium, Pioche Formation (ca. 520 Y.o.)|