Egorov, E. V. 1972. [Stratigraphical distribution of Upper Cretaceous echinoids of Tadzhikistan]. Doklady Akademii Nauk Tadzikskoj SSR 15, 59-61. page(s): 59 [details]
Kroh, A.; Mooi, R. (2025). World Echinoidea Database. Sogdiaster Egorov, 1972 †. Accessed at: https://www.marinespecies.org/Echinoidea/aphia.php?p=taxdetails&id=512816 on 2026-04-11
original descriptionEgorov, E. V. 1972. [Stratigraphical distribution of Upper Cretaceous echinoids of Tadzhikistan]. Doklady Akademii Nauk Tadzikskoj SSR 15, 59-61. page(s): 59 [details]