Mario Vargas-Ramírez, Susana Caballerod, Mónica A. Morales-Betancourt, Carlos A. Lasso, Laura Amaya, José Gregorio Martínez, Mariadas Neves Silva Viana, Richard C. Vogt, Izeni Pires, Farias, TomasHrbek, Patrick D. Campbell, Uwe Fritz: Genomic analyses reveal two species of the matamata (Testudines: Chelidae: Chelus spp.) and clarify their phylogeography. Molecular Phylogenetics and Evolution, April 2020, 106823, doi: 10.1016/j.ympev.2020.106823