• [Wiki] http://en.wikipedia.org/wiki/Sphenodon_punctatus.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Sphenodon_punctatus.
• [ADW] http://animaldiversity.ummz.umich.edu/accounts/Sphenodon_punctatus/.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [NelsThom2004] Nelson, N. J., Thompson, M. B., Pledger, S., Keall, S. N., and Daugherty, C. H. (2004). Egg mass determines hatchling size, and incubation temperature influences post-hatching growth, of tuatara Sphenodon punctatus. J. Zool., Lond., 263:77--87.