Shells of Axestemys (Cryptodira, Trionychidae), from the Tienen Formation (basal Ypresian, earliest Eocene) of several Belgian localities. A–D. Shell of the specimen of Axestemys vittata IRSNB R423, from Leval (Hainaut). A, B: carapace, in dorsal (A) and ventral (B) views; C, D: partial plastron, in ventral (C) and dorsal (D) views. E–I. Comparison of the length of the carapace of five Belgian specimens of Axestemys, using the profile of the individual of Erquelinnes IRSNB R86. E: IRSNB R423, specimen of Axestemys vittata, from Leval; F: IRSNB R86, holotype of Axestemys erquelinnensis nov. sp., from Erquelinnes (Hainaut); G: IRSNB R421, specimen of Axestemys vittata, from Leval; H: IRSNB R420, specimen of Axestemys vittata, holotype of ‘Trionyx levalensis’, from Leval; I: IRSNB R428, specimen of Axestemys vittata, from Orp-le-Grand (Walloon Brabant). Scale bar: 20 cm.