Here a small trilobite of the species Ovalocephalus cf tetrasulcatus from the upper Ordovician of Yunnan. | |||
Location: | Baoshan, western Yunnan, China | ||
Size trilobite: | about 6 mm long | ||
Age: | Upper Ordovician, Katian (Ashgill), Shihtien Series, Pupiao Formation (ca. 485 Mill Jahre) |