This taxon was erected in 2005, based upon fossil material found in beds of lower Zitai Formation exposed in Maocaopu, Reshi, Taoyuan County in north Hunan, China. Fossil material include a cephalon and two pygidia. It was found to belong to family Diplagnostidae, subfamily Pseudagnostinae; it was originally thought to be most closely related to the genus Pseudorhaptagnostus, but it differed substantially from that genus in both some important diagnostic characters, and in the age of the beds in it was deposited, so a new genus was erected.