(ofAnthraconauta (Prokopievskia) gigantea f. ussiensis Khalfin, 1950 †)Khalfin L.L. (1950). The lamellibranchiate mollusks of the coal-bearing deposits of Kuzbass [= Пластинчатожаберные моллюски угленосных отложений Кузбасса]. <em>Trudy Gorno-Geologicheskogo Instituta Zapadno-Sibirskogo Filiala AN SSSR.</em> 9: 1-159. [In Russian]. page(s): 84-85, pl. 9, fig. 13 [details] Available for editors [request]
original description(ofAnthraconauta (Prokopievskia) gigantea f. ussiensis Khalfin, 1950 †)Khalfin L.L. (1950). The lamellibranchiate mollusks of the coal-bearing deposits of Kuzbass [= Пластинчатожаберные моллюски угленосных отложений Кузбасса]. <em>Trudy Gorno-Geologicheskogo Instituta Zapadno-Sibirskogo Filiala AN SSSR.</em> 9: 1-159. [In Russian]. page(s): 84-85, pl. 9, fig. 13 [details] Available for editors [request]