Contributed by Andrew Smith, September 2006
| Name gender | feminine |
|---|---|
| Classification and/or Status | Pro Echinocystites Thomson, 1861, p. 106. |
| Remarks | Gregory, J. W. 1897. On the affinities of Echinothuriidae; and on Pedinothuria and Helikodiadema, two new genera of Echinoidea. Quarterly Journal of the Geological Society, London, 53, 112-122. |