Bock, P. (2026). World List of Bryozoa. Smithsonius bifax (Cheetham, 1972) †. Accessed through: Marine Species Traits editorial board (2026) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1413727 on 2026-05-17
Marine Species Traits editorial board (2026). Marine Species Traits. Smithsonius bifax (Cheetham, 1972) †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1413727 on 2026-05-17