Fry, Bryan G.; Vidal, Nicolas; Norman, Janette A.; Vonk, Freek J.; Scheib, Holger; Ramjan, S. F. Ryan; Kuruppu, Sanjaya; Fung, Kim et al. (2005). “Early evolution of the venom system in lizards and snakes”. Nature439 (7076): 584–8. Bibcode: 2006Natur.439..584F. doi:10.1038/nature04328. PMID16292255.
Vidal, Nicolas; Hedges, S. Blair (2009). “The molecular evolutionary tree of lizards, snakes, and amphisbaenians”. Comptes Rendus Biologies332 (2–3): 129–39. doi:10.1016/j.crvi.2008.07.010. PMID19281946.
Fry, Bryan G.; Vidal, Nicolas; Norman, Janette A.; Vonk, Freek J.; Scheib, Holger; Ramjan, S. F. Ryan; Kuruppu, Sanjaya; Fung, Kim et al. (2005). “Early evolution of the venom system in lizards and snakes”. Nature439 (7076): 584–8. Bibcode: 2006Natur.439..584F. doi:10.1038/nature04328. PMID16292255.
Fry, Bryan G.; Vidal, Nicolas; Norman, Janette A.; Vonk, Freek J.; Scheib, Holger; Ramjan, S. F. Ryan; Kuruppu, Sanjaya; Fung, Kim et al. (2005). “Early evolution of the venom system in lizards and snakes”. Nature439 (7076): 584–8. Bibcode: 2006Natur.439..584F. doi:10.1038/nature04328. PMID16292255.
Vidal, Nicolas; Hedges, S. Blair (2009). “The molecular evolutionary tree of lizards, snakes, and amphisbaenians”. Comptes Rendus Biologies332 (2–3): 129–39. doi:10.1016/j.crvi.2008.07.010. PMID19281946.