†Chondragraulaspis Nomokorov 1969

Nomokorov 1969. [On the stratigraphy of the Pre-Cambrian and Cambrian deposits in the region of the villages of Efremkin and Malaya Syra (eastern slopes of Kuznetsk Alatau)]. Izv. Tomsk polytekhn. Inst., 196 1969: 40-47