Cetacea/Artiodactyla Montgelard, Catzeflis & Douzery 1997 see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
   Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
     Family †Protocetidae Stromer, 1908
       Genus †Artiocetus P.D. Gingerich et al., 2001