Mystacodon selenensis, the earliest known toothed mysticete (Cetacea, Mammalia) from the late Eocene of Peru: anatomy, phylogeny, and feeding adaptations Author Muizon, Christian de Author Bianucci, Giovanni Author Martínez-Cáceres, Manuel Author Lambert, Olivier text Geodiversitas 2019 2019-05-30 41 11 401 499 journal article 10.5252/geodiversitas2019v41a11 9a9f7bb5-ef8f-4984-8015-b3f1163286bc 1638-9395 3699733 urn:lsid:zoobank.org:pub:10C821A5-943E-41A0-8FFF-5D5169223126 Genus Mystacodon Lambert, Martínez-Cáceres, Bianucci, Di Celma, Salas- Gismondi, Steurbaut, Urbina & Muizon, 2017 TYPE AND ONLY SPECIES INCLUDED . — Mystacodon selenensis . FIG. 2. — A , Schematic map of Peru with the position of the Playa Media Luna locality along the southern coast; B , detail of the Playa Media Luna locality showing the position of the holotype of Mystacodon selenensis MUSM 1917,the stratigraphic section, and part of the sediment samples taken for the biostratigraphic analysis. Modified from Lambert et al. (2017a) . ETYMOLOGY. — From ancient Greek mystacos (“moustache”) in reference to the suborder Mysticeti and odontos (“tooth”), “mysticete with teeth”. DIAGNOSIS. — The same as for the type species, Mystacodon selenensis .