Vieira, L.G., Santos, A.L.Q. and Lima, F.C. 2010. <b>Ontogeny of the cranial bones of the giant amazon river turtle <em>Podocnemis expansa</em> Schweigger, 1812 (Testudines, Podocnemididae)</b&gt; - doi: 10.4025/actascibiolsci.v32i2.5777. Acta Scientiarum. Biological Sciences. 32, 2 (May 2010), 181-188. DOI:https://doi.org/10.4025/actascibiolsci.v32i2.5777.