Choneziphius is an extinct genus of ziphiidae cetaceans, with two species known from the Miocene: C. planirostris and C. leidyi.[1][2] Known from the shore of Belgium, Portugal and Spain.
References
^Lambert, O. (2005). Systematics and phylogeny of the fossil beaked whales Ziphirostrum du Bus, 1868 and Choneziphius Duvernoy, 1851 (Mammalia, Cetacea, Odontoceti), from the Neogene of Antwerp (North of Belgium) Geodiversitas 27(3): 443-497
^Bianucci G., Miján I, Lambert O., Post K. & Mateus O. 2013. — Bizarre fossil beaked whales(Odontoceti, Ziphiidae) fished from the Atlantic Ocean floor off the Iberian Peninsula. Geodiversitas 35 (1): 105-153.