Sierwald, P.; Decker, P.; Spelda, J. (2025). MilliBase.
Sympastrophus Chamberlin, 1920. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=892693 on 2025-04-30
Marine Species Traits editorial board (2025). Marine Species Traits.
Sympastrophus Chamberlin, 1920. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=892693 on 2025-04-30