Coronocephalus gaoluoensis
Trilobite
Lower Silurian (Llandovery)
Telychian Xiushan Formation
Wanmin town, Yongshun County, western Hunan, China

32mm on 66mm slab. One of the best ones we have had in many years.

RESTUDY OF CORONOCEPHALUS GAOLUOENSIS WU,1979 – CHEN Gui-ying et al. Acta Palaeontologica Sinica 2011-03