[organisms]
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.
 see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
    
 Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises
 see Infraorder Cetacea Brisson, 1762
      
 Family Delphinidae Gray, 1821 - oceanic dolphins
        
 Genus Steno Gray, 1846 - rough-toothed dolphin
          
 1 Steno bredanensis (Lesson, 1828) - rough-toothed dolphin