@article{zaher_grazziotin_cadle_murphy_moura-leite_bonatto_2009,  title={Molecular phylogeny of advanced snakes (Serpentes, Caenophidia) with an emphasis on South American Xenodontines: a revised classification and descriptions of new taxa},  volume={49},  ISSN={0031-1049},  url={https://doi.org/10.1590/S0031-10492009001100001},  DOI={10.1590/S0031-10492009001100001},  number={11},  journal={Papéis Avulsos de Zoologia},  publisher={Museu de Zoologia da Universidade de São Paulo},  author={Zaher, Hussam and Grazziotin, Felipe Gobbi and Cadle, John E. and Murphy, Robert W. and Moura-Leite, Julio Cesar de and Bonatto, Sandro L.},  year={2009},  pages={115–153} }