New fossils of Sirenia from the Middle Eocene of Navarre (Western Pyrenees): The oldest West European sea cow record

1. Astibia, H.
2. Bardet, N.
3. Pereda-Suberbiola, X.
4. Payros, A.
5. De Buffrénil, V.
6. Elorza, J.
7. Tosquella, J.
8. Berreteaga, A.
9. Badiola, A.