Gregory, J. W. (1897). On the affinities of the Echinothuridae; and on <i>Pedinothuria</i> and <i>Helicodiadema</i>, two new genera of Echinoidea. <em>Quarterly Journal of the Geological Society of London.</em> 53: 112-122, pl. 7., available online athttps://doi.org/10.1144/gsl.jgs.1897.053.01-04.09[details]
Kroh, A.; Mooi, R. (2025). World Echinoidea Database. Pedinothuria Gregory, 1897 †. Accessed at: https://www.marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=834459 on 2026-03-05
original descriptionGregory, J. W. (1897). On the affinities of the Echinothuridae; and on <i>Pedinothuria</i> and <i>Helicodiadema</i>, two new genera of Echinoidea. <em>Quarterly Journal of the Geological Society of London.</em> 53: 112-122, pl. 7., available online athttps://doi.org/10.1144/gsl.jgs.1897.053.01-04.09[details]