Current distribution of tuatara (in black).^[1][2][3] Circles represent the North Island tuatara, squares the Brothers Island tuatara. Symbols may represent up to seven islands.

1. ↑ Daugherty, C. H., A. Cree, J. M. Hay & M. B. Thompson. 1990. Neglected taxonomy and continuing extinctions of tuatara (Sphenodon). Nature 347, 177-179. doi:10.1038/347177a0
2. ↑ Gaze, Peter (2001). Tuatara recovery plan 2001-2011. Threatened Species Recovery Plan 47. Biodiversity Recovery Unit, Department of Conservation, Government of New Zealand. Retrieved on 2007-06-02. ISBN 0478221312
3. ↑ Beston, Anne (2003-10-25). New Zealand Herald: Tuatara Release. Archived from the original on 2007-10-04. Retrieved on 2007-09-11.

Also compare with the more recently published http://www.teara.govt.nz/TheBush/FishFrogsAndReptiles/Tuatara/2/ENZ-Resources/Standard/1/en

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Abgeleitete Werke dieser Datei:  North Island Map tuatara NL.png