Lentiarenium

Lentiarenium was an early sea cow from the Late Oligocene (Chattian) Linzer Sanden Formation of Austria.
Classification.
It was originally classified as a species of "Halitherium", "H. christolli", but was eventually recognized as generically distinct from the dugongid remains assigned to "H. schinzii", and renamed "Lentiarenium" in 2016.