Here is a spiny curiosity from the lower Cambrian age. Esmeraldina is one of the most rare Trilobites from Nevada at all. The free standing axial spines are remarkable.
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Location: | Esmeralda County, Nevada, USA | ||
Size: | about 28 mm wide | ||
Age: | Lower Cambrian, Campito Formation, Nevadia weeksi Zone (about 520. mill. years) |