Cambrian Trilobite fossil in Matrix from the Monte Neva Formation
013: one sample: interesting gray with tiny complete specimen and partial cephalon on front, good sized gray partial pydgidum with more partials on back.
Please note, this is a small sample! About 5 cm (2 inches) across, and the fossils are smaller-- but excellent detail.
The Monte Neva Formation is a Middle Cambrian calcareous siltstone exposed in the Little Schell Creek range in White Pine County, Nevada, USA
The Cambrian lasted from ~542 million years ago to ~487 million years ago, and was a time of explosive evolution in the marine frontier. This material was deposited on the floor of a vast inland sea present in what is now North America at that time.
A number of genus and species of trilobite are present in this shale unit, including Elrathia, Agnostids, and Perenopsis. Nevadia is possible in the lower portion of the unit, and other genera may also appear.
Trilobites present may be complete or partial, may be preserved as a mold or intact specimen, and may or may not include the original phosphatic carapace coating. These are all genuine specimens from the Earth.
Your specimen will be the exact one pictured, and will include an information sheet including the period, locality, and basic images to aid in species identification.
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