Bock, P. (2021). World List of Bryozoa. Cyphotrypa simplex Hu, 1988 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://marinespecies.org/traits/aphia.php?p=taxdetails&id=1401281 on 2025-02-23
Marine Species Traits editorial board (2025). Marine Species Traits. Cyphotrypa simplex Hu, 1988 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1401281 on 2025-02-23