| Here is a trilobite from the Lower Cambrian of California of the species Olenellus terminatus as a split pair. In this specimen, the glabella is cleaved, but the hypostome is visible on the negative side. Nevertheless, it is an interesting and richly detailed specimen. The trilobite itself measures about 22 mm in length. |
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| | Location: | Emigrant Pass, San Bernardino County, California, USA | |
| Size Matrix: | about 76 x 30 & 77 x 32 mm |
| Age: | Lower Cambrian ,Pyramid Shale, Carrara Formation (about. 520 years) |
