In: Khairullina, T.I. & Repina, L.I.; in: Zhuravleva, l.T., Repina, L.I., Jashovich, B.V., Khairullina, T.I., Ponyklenko, l.A. & Luchinina. V.A. [Towards knowledge of the Early Cambrian of south Tyan'-Shanya.] FAN Uzbekistan SSR, Tashkent., 1970: 1-53. 38 [Zoological Record Volume 112]