Kroh, A.; Mooi, R. (2021). World Echinoidea Database. Laganum depressum tonganense L. Agassiz, 1841. Accessed at: http://www.marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=513819 on 2024-04-19
basis of recordMortensen, T. (1948). A Monograph of the Echinoidea. IV, 2. Clypeasteroida. Clypeasteridæ, Arachnoidæ, Fibulariidæ, Laganidæ and Scutellidæ. 471 pp., C. A. Reitzel, Copenhagen. page(s): 323-325 [details]