Recognizing a lost nesting ground: First unambiguous Testudines eggshells from the Eocene, associated with the pleurodiran Eocenochelus (Huesca, Northern Spain)

1. Moreno-Azanza, M.
2. Díaz-Berenguer, E.
3. Silva-Casal, R.
4. Pérez-García, A.
5. Badiola, A.
6. Canudo, J.I.