Here is a fabulous specimen of this rare trilobite from the Tremadocian of Agentinia. The wonderfuly preserved macropleural spines are remarkable. | |||
Location: | Purmamarca, Jujuy Province, Argentina | ||
Size: | about 29 mm long | ||
Age: | Lower Ordovician, Tremadoc, Purmamarca shales (About 490 Mill. years) |