Steven A. Trewick, Adrian M. Paterson, Hamish J. Campbell. Hello New Zealand. „Journal of Biogeography”. 34 (1), s. 1–6, 2007. DOI: 10.1111/j.1365-2699.2006.01643.x.
Marc E. H. Jones, Alan J. D. Tennyson, Jennifer P. Worthy, Susan E. Evans, Trevor H. Worthy. A sphenodontine (Rhynchocephalia) from the Miocene of New Zealand and palaeobiogeography of the tuatara (Sphenodon). „Proceedings of the Royal Society B”. 276 (1660), s. 1385–1390, 2009. DOI: 10.1098/rspb.2008.1785. (ang.).