Kroh, A.; Mooi, R. (2025). World Echinoidea Database.
Hypselaster brachypetalus H.L. Clark, 1917. Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2025) World Register of Deep-Sea species (WoRDSS) at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=422517 on 2025-05-17
Glover, A.G.; Higgs, N.; Horton, T. (2025). World Register of Deep-Sea species (WoRDSS).
Hypselaster brachypetalus H.L. Clark, 1917. Accessed at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=422517 on 2025-05-17