Abstract
Two new cryptodiran turtle species are here described on the basis of shell material from the Lower Miocene (Biozone A of Ramblian, MN3) of the Bardenas Reales of Navarre. They are Chelydropsis apellanizi n. sp., which represents the first mention of this genus in the Iberian Peninsula and the most occidental chelydrid known in Europe, and Ptychogaster (Temnoclemmys) bardenensis n. sp. provisionally regarded as the oldest component of Temnoclemmys. The composition of the turtle fauna from the Bardenas Reales of Navarre, which also includes Ptychogaster ronbeimensis and Trionyx sp. suggests a calm-water lacustrine environment under an intertropical to subtropical climate.
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