Bour, R. and Zaher, H. 2005. A new species of Mesoclemmys, from the open formations of northeastern Brazil (Chelonii, Chelidae) . Papéis Avulsos de Zoologia. 45, 24 (Jan. 2005), 295–311. DOI:https://doi.org/10.1590/S0031-10492005002400001.