Here is a rare Nevada trilobite of the species Glossopleura packi from Chisholm Shale of Nevada. This piece comes with positive as well as negative.
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Location: | Caselton, Nevada, USA | ||
Size: | about 39 mm long | ||
Age: | Lower Cambrian, Chisholm Shale, upper Glossopleura Zone (ca. Mill. 520 Years.) |