Description
An excellent Zacanthoides typicalis from the early Middle Cambrian of Nevada. Zacanthoides appears soon after the end of the Lower Cambrian and the demise of the Olenelloid trilobites. This 2.4 cm example is well displayed showcasing the species spinose anatomy, including its long, rear axial spine. The trilobite is centered on a nice bi-color matrix.
Age: Middle Cambrian
Species Name: Zacanthoides typicalis
Order / Family: Corynexochida / Zacanthoididae
Locality: Lincoln County, Nevada
Formation: Chisholm Shale
