Kroh, A.; Mooi, R. (2021). World Echinoidea Database.
Pseudoholaster †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=765877 on 2024-05-05
Marine Species Traits editorial board (2024). Marine Species Traits.
Pseudoholaster †. Accessed at: https://www.marinespecies.org/traits./aphia.php?p=taxdetails&id=765877 on 2024-05-05