Priscosiren
Priscosiren is an extinct genus of mammal which existed in the west Atlantic and Puerto Rico during the early Oligocene (Chattian). Description Priscosiren was diagnosed from other "halitheriine" dugongids by Velez-Juarbe and Domning (2014). Phylogeny Priscosiren is recovered by Velez-Juarbe and Domning (2014) as sister to the Metaxytherium + Hydrodamalinae and Dugonginae clades. References Oligocene sirenians Fossil taxa described in 2014 Prehistoric placental genera