Kroh, A.; Mooi, R. (2021). World Echinoidea Database.
Plexechinus A. Agassiz, 1898. Accessed through: RAS (Eds.) (2021) Register of Antarctic Species at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=123406 on 2023-02-09
RAS (Eds.) (2023). Register of Antarctic Species.
Plexechinus A. Agassiz, 1898. Accessed at: https://ras.biodiversity.aq/aphia.php?p=taxdetails&id=123406 on 2023-02-09