Bibliographic Detail
Kuptsova, I.A., 1962
Reference:
Kuptsova, I.A. (1962). Novyi vid roda Stephanodiscus Ehr. iz pliotsenovykh otlozheniy nizhney Kamy [New species of the genus Stephanodiscus Ehr. from the Pliocene deposits of Lower Kama]. Botanicheskie Materialy Otdela Sporovykh Rasteniy BIN AN SSSR 15: 37-38, figs 1-11.