Regnault S, Hutchinson JR, Jones MEH. 2017. Sesamoid bones in tuatara (Sphenodon punctatus) investigated with X-ray microtomography, and implications for sesamoid evolution in Lepidosauria. Journal of Morphology 278: 62–72. DOI: 10.1002/jmor.20619
http://onlinelibrary.wiley.com/doi/10.1002/jmor.20619/full
