Lawson R. et al 2005. Phylogeny of the Colubroidea (Serpentes): new evidence from mitochondrial and nuclear genes. Molecular Phylogenetics and Evolution37: 581–601. [1]
Fry, B.G. et al 2009. Evolution and diversification of the Toxicofera reptile venom system. Journal of Proteomics72: 127–136. [2]