2008 Rediscovery of an extinct species of giant Galapagos tortoise.

Poulakakis, N., Glaberman, S., Russello, M., Beheregaray, L.B., Ciofi, C., Powell, J.R., Caccone, A. (2008) Rediscovery of an extinct species of giant Galapagos tortoise. PNAS, 105(40), 15464–15469.