1. Carter JG (1980) In: Rhoads DC, Lutz A (eds) Skeletal Growth of Aquatic Organisms. Plenum, New York and London, pp. 69–113.
2. Togo Y, Suzuki S (1988) In: Omori M, Suga S, Goto M (eds) Biommeralization and Phylogeny of Marine Organisms. Tokai University Press, Tokyo, pp.113–134.
3. Erben HK, Krampitz G (1972) Biommeralization 6:12–31.
4. Batten RL (1975) Am Mus Novitates no. 2567:1–29.
5. Arnaud PM, Bandel K (1976) Tethys 8: 213–230.