Project 5230: S.J. Suter. 1994. Cladistic analysis of cassiduloid echinoids: trying to see the phylogeny for the trees. Biological Journal of the Linnean Society. 53 (1):31-72.
Suter, S.J. 1994. Cladistic analysis of cassiduloid echinoids: trying to see the phylogeny for the trees. Biological Journal of the Linnean Society. Vol. 53(1), pp. 31-72.