Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
   Cetartiodactyla Montgelard, Catzeflis & Douzery 1997 see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
     Whippomorpha Waddell, Okada & Hasegawa 1999 see Suborder Whippomorpha
       Cetacea Brisson 1762 see Suborder Cetacea Brisson, 1762
         Pelagiceti Uhen, 2008
           Neoceti Fordyce & de Muizon, 2001
             Mysticeti Cope, 1891 see Parvorder Mysticeti Cope, 1891
               Chaeomysticeti Mitchell, 1989
                 Balaenomorpha Geisler & Sanders, 2003
                   Plicogulae Geisler, McGowen, Young & Gatesy, 2011
                     Superfamily Balaenopteroidea Gray, 1868
                       Family Balaenopteridae Gray, 1864 - rorquals
                         01 Genus Balaenoptera Lacépède, 1804 - rorquals
                         02 Genus Megaptera Gray, 1846 - humpback whale
                         03 Genus †Archaebalaenoptera Bisconti, 2007
                         04 Genus †Diunatans Bosselaers & Post, 2010
                         05 Genus †Parabalaenoptera Zeigler, Chan & Barnes, 1997
                         06 Genus †Plesiobalaenoptera Bisconti, 2010
                         07 Genus †Protororqualus Bisconti, 2007
                         08 †"Balaenoptera" ryani Hanna & McLellan, 1924
                         09 †"Megaptera" miocaena
                         10? †"Megaptera" hubachi (Dathe, 1983)