| This is a good Chengjiang – trilobite of the species Yunnanocephalus yunnanensis from the Lower Cambrian of China. | |||
Location: | Chengjiang, eastern Yunnan Province, South China | ||
| Size trilobite: | about 13 mm long | ||
| Age: | Lower Cambrian, Heilinpu Fm., Yu'anshan Member, (about. 522 Mill. y.o.) | ||