[Description of Cambrian trilobites from south-west Tyan'-Shanya.]. Verkhov, V.I.[Stratigraphy and palaeontology of Uzbekistan and boundary regions.] Akad. Nauk Uzbek. 1-414, 113 pls. 1962., SSR, Tashkent., 1962: 14-40. Chapter pagination: 14-40. 29 [Zoological Record Volume 112]