Izv. Akad. Nauk kazakh. SSR (Geol. ) 16 no. 121 [not seen] or 1953, Middle Cambrian trilobites of Kazakhstan. Part 1. Akad. Nauk Kazakh. SSR, Inst. Geol. Sci. , Alma-Ata [not seen]. The genus is listed in Ivshin 1957, Middle brian trilobites of Kazakhstan
