Vanzolini, P.E. 1976. On the lizards of a cerrado-caatinga contact: evolutionary and zoogeographical implications (Sauria). Papéis Avulsos de Zoologia. 29, 1-28 (1975-1976) (Apr. 1976), 111–119. DOI:https://doi.org/10.11606/0031-1049.1976.29.p111-119.