Kaupitherium

Kaupitherium is an extinct dugongid sea cow that lived during the Oligocene. Fossils of the genus have been found in the Alzey Formation of Germany. Inside its flippers were finger bones that did not stick out. "Kaupitherium" also had the residues of back legs, which did not show externally. However, it did have a basic femur, joined to a reduced pelvis. "Kaupitherium" also had elongated ribs, presumably to increase lung capacity to provide fine control of buoyancy.
Taxonomy.
"Halitheriine" dugongid remains from Oligocene deposits in Europe were previously referred to "Halitherium schinzii" by many authors. However, Voss (2013, 2014) dismissed "Halitherium" as a "nomen dubium" by virtue of being based on non-diagnostic remains. Voss based the opinion on the type species, "H. schinzii", being "nomen dubium", with its holotype fossil, an isolated molar, having no diagnostic value. and a 2017 study found specimens traditionally assigned to "Halitherium schinzii" to be two separate species, one of which takes the name "Halitherium bronni" Krauss, 1858. Because "Halitherium" is dubious, the dugongid remains traditionally known as "Halitherium" were given the new genus "Kaupitherium".