^Schoch, Rainer R.; Poschmann, Markus & Kupfer, Alexander (2015). "The salamandrid Chelotriton paradoxus from Enspel and Randeck Maars (Oligocene–Miocene, Germany)". Palaeobiodiversity and Palaeoenvironments. 95 (1): 77–86. Bibcode:2015PdPe...95...77S. doi:10.1007/s12549-014-0182-8.