Humberto Astibia, Aitor Payros, Xabier Pereda Suberbiola, Javier Elorza,
Ana Berreteaga , Nestor Etxebarria, Ainara Badiola,Josep Tosquella
Sedimentology and taphonomy of sirenian remains from the Middle Eocene of the Pamplona Basin
(Navarre, western Pyrenees)
Facies (2005) 50:463–475
AstibiaeocenpyreneesirenmammaFACIEStal2005a.pdf