Kentriodon was the most diverse of all the kentriodontids, which include three named species and five undescribed species. These were small to medium-sized odontocetes with largely symmetrical skulls, and thought likely to include ancestors of some modern species. Kentriodon is also the oldest described kentriodontid genus, reported from the Late Oligocene to the Middle Miocene.
Kentriodontines ate small fish and other nectonic organisms; they are thought to have been active echolocators, and might have formed pods. The diversity, morphology and distribution of fossils appear parallel to some modern species.
- Kentriodon pernix Kellogg, 1927 (type)
- Kentriodon fuchsii (Brandt, 1873)
- Kentriodon hobetsu Ichishima, 1995
- Kentriodon obscurus (Kellogg, 1931)
- Kentriodon schneideri Whitmore and Kaltenbach, 2008