First issued in release COL22.
Last used in release COL23.9
Published in
Khalfin, L. L. (1950). The lamellibranchiate mollusks of the coal-bearing deposits of Kuzbass [= Пластинчатожаберные моллюски угленосных отложений Кузбасса]. Trudy Gorno-Geologicheskogo Instituta Zapadno-Sibirskogo Filiala AN SSSR, 9: 1–159. [In Russian]. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=348889