Hello, I send you some information about a recent publicacion in fossil sirenians. *A new dugong species (Sirenia, Dugongidae) from the Eocene of Catalonia (NE Iberian Peninsula)* A new stem dugongid species, *Prototherium ausetanum* sp. nov. (Dugongidae, Halitheriinae),is described based on a cranium from the middle Eocene of Mas Vilageliu (Tona, NE IberianPeninsula). The new species displays a combination of features that enables its distinction from other halitheriines, including *Prototherium veronense* (type species of the genus),*Prototherium*? *intermedium* (which likely belongs to a different genus), and *Prototherium*?*montserratense* (here considered a nomen dubium), as well as *Eotheroides* spp. In overallmorphology (e.g., dolichocephaly) the new species more closely resembles species previously included in *Prototherium*. More info in: Balaguer, J. & Alba, D.M. (in press). A new dugong species (Sirenia, Dugongidae) from the Eocene of Catalonia (NE Iberian Peninsula) *Comptes Rendus Palevol*. Doi: 10.1016/j.crpv.2015.10.002 <http://dx.doi.org/10.1016/j.crpv.2015.10.002> Jordi Balaguer Bruguera Biologist and science popularizer exponensbiology@gmail.com *exponensBiology* <http://exponensbiology.webs.com/>