After McKenna & Bell, 1997, Kimura & Ozawa, 2002, Dooley, Fraser & Luo, 2004, Bouetel & de Muizon, 2006, Fitzgerald, 2006, 2010, and Deméré, McGowen, Berta & Gatesy, 2008

<==o Mysticeti Gray, 1864 [non? Flower, 1864] (baleen whales; hetulavalaat)
   |?- †Willungacetus aldingensis Pledge, 2005
   |?-o †Kekenodontidae Mitchell, 1989
   |  |?- †Phococetus vasconum (Delfortrie, 1873) Gervais, 1876
   |  `?- †Kekenodon onamata Hector, 1881
   |?- †Aetiocetidae genera et species indet. [U. Olig. SWNA.] [Olivares-Bañuelos et al., 2001]
   `--+--+-- †Llanocetus denticrenatus Mitchell, 1989 [Llanocetidae Mitchell, 1989, Llanocetinae Mitchell, 1989]
      |  `--o †Mammalodontidae Mitchell, 1989 [incl. Janjucetidae Fitzgerald, 2006]
      |     |-- †Mammalodon colliveri Pritchard, 1939 [‘Mammalodon’ colliveri Hills, 1958; mammalodon pritchardi Pledge & Rothausen, 1977 (lapsus calami)]
      |     `-- †Janjucetus hunderi Fitzgerald, 2006
      `==o †Aetiocetidae Emlong, 1966 [paraphyletic]
         |?- †Ashorocetus eguchii Barnes & Kimura in Barnes et al., 1995
         |?- †Morawanocetus yabukii Kimura & Barnes in Barnes et al., 1995
         |--o †Chonecetus Russel, 1968 [Chonecetinae Barnes, Kimura, Furusawa & Sawamura, 1994]
         |  |-- †C. sookensis Russel, 1968
         |  `-- †C. goedertorum Barnes & Furasawa in Barnes et al., 1995
         `--+--o †Aetiocetus Emlong, 1966 [Aetiocetinae Emlong, 1966]
            |  |-- †A. cotylalveus Emlong, 1966
            |  |-- †A. weltoni barnes & Kimura in Barnes et al., 1995
            |  |-- †A. tomitai Kimura & Barnes in Barnes et al., 1995
            |  `-- †A. polydentatus Sawamura in Barnes et al., 1995
            `--o Chaeomysticeti Mitchell, 1989
               |--o †Cetotheriopsidae (Brandt, 1872) [Eomysticetoidea Sanders & Barnes, 2002
               |  |--o †Cetotheriopsis Brandt, 1871 [incl.? †Aulocetus Brandt, 1871]
               |  |  |-- †C. calaritanus (Capellini, 1899) [†Aulocetus calaritanus Capellini, 1899]
               |  |  |-- †C. latus (Kellogg, 1940) [†Aulocetus latus Kellogg, 1940]
               |  |  |-- †C. lovisati (Capellini, 1899) [†Aulocetus lovisati Capellini, 1899]
               |  |  |-- †C. molassicus (Jaeger, 1835) [†Balaenoptera molassicus Jaeger, 1835; Aulocetus molassicus (Jaeger, 1835) Trouessart, 1898]
               |  |  `-- †C. lintianus (von Meyer, 1849) [†Balaenodon lintianus von Meyer, 1849]
               |  |--o †Eomysticetus Sanders & Barnes, 2002
               |  |  |-- †E. carolinensis Sanders & Barnes, 2002
               |  |  `-- †E. withmorei Sanders & Barnes, 2002
               |  `--o †Micromysticetus Sanders & Barnes 2002
               |     |-- †M. rothauseni Sanders & Barnes 2002
               |     `-- †M. tobieni Sanders & Barnes 2002
               `--+-- †Cetotheriidae Brandt, 1872 sensu stricto (Bouetel & de Muizon, 2006)
                  `--+-- †Diorocetus hiatus Kellogg, 1968
                     `--+-- †Pelocetus calvertensis Kellogg, 1965
                        |-- †Isanacetus laticephalus Kimura & Ozawa, 2002
                        |--+-- †Cophocetus oregonensis Packard & Kellogg, 1934
                        |  `-- †Parietobalaena palmeri Kellog, 1924
                        `--+--o †Aglaocetus Kellogg, 1934
                           |  |-- †A. moreni (Lydekker, 1894) [Cetotherium moreni Lydekker, 1894]
                           |  `-- †A. patulus
                           `--+-- †Eobalaenoptera harrisoni Dooley, Fraser & Luo, 2004
                              |-- Balaenopteridae Lacépède, 1804 [non Gray, 1864] (rorquals; uurteisvalaat)
                              `--+-- Balaenidae Gray, 1821 [incl. Neobalaenidae Gray, 1873] (right whales; sileävalaat)
                                 `--o Eschrichtius Gray, 1864b [†Rhachianectes] U.Plio.-R. Pac. [Eschrichtiidae Ellerman & Morrison-Scott, 1951, Rhachianectidae]
                                    |-- E. sp. [U.Plio., EAs. (Hokkaido)] [Ichishima, Sato, Sagayama & Kimura, 2006]
                                    `-- E. robustus (Lilljeborg, 1861) Gray, 1864 [Balaenoptera robusta Lilljeborg, 1861] (gray whale; harmaavalas)

Mysticeti incertae sedis:

Siphonocetus Cope, 1895
        †S. clarkianus Cope, 1895
        †S. expansus (Cope, 1869)
        †S. priscus Cope, 1895
    †Ulias moratus (nomen dubium)
    †Tretulias buccatus (nomen dubium)
    †Eucetites juliensis Ameghino, 1901
    †Eschrichtius polyporus (nomen vanum) [Cetotherium indet.?]
  
List of †“Cetotheriidae” Brandt, 1872 not treated by Kimura & Ozawa (2002), Dooley, Fraser & Luo (2004), or Bouetel & de Muizon (2006):
Mauicetus Benham, 1939
        †M. parki Benham, 1939
        ?†M. brevicolisPinocetus polonicus Czyzewska & Ryziewicz, 1976
    †Tiphyocetus temblorensis Kellogg, 1931
    †Imerocetus karaganicus Mchedlidze, 1964
    †Mesocetus Van Beneden, 1880
        †M. agrami Van Beneden, 1884
        †M. aquitanicus Flot, 1896
        †M. argillarius Roth, 1978
        †M. hungaricus Kadic, 1907
        †M. latifrons Van Beneden, 1880
        †M. longirostris Van Beneden, 1880
        †M. pinguis Van Beneden, 1880
        †M. siphunculus Cope, 1895
    †Isocetus depauwii Van Beneden, 1880
    †Peripolocetus vexillifer Kellogg, 1931
    †Halicetus ignotus Kellogg, 1969
    †Cetotheriomorphus dubius Brandt, 1873
    †Thinocetus arthritus Kellogg, 1969
    †Otradnocetus viridovi Mchedlidze, 1984
    †Heterocetus Van Beneden, 1880
        †H. affinis Van Beneden, 1880
        †H. brevifrons (Van Beneden, 1872)
        †H. guiscardii Capellini, 1877
        †H. sprangii Van Beneden, 1886
    †Amphicetus Van Beneden, 1880
        †A. editus Van Beneden, 1880
        †A. later Van Beneden, 1880
        †A. rotundus Van Beneden, 1880
        †A. verus Van Beneden, 1880
    †Cephalotropis Cope, 1896
        †C. coronatus Cope, 1896
        †C. nectus Kellogg, 1940
    †Piscocetus sacaco Pilleri & Pilleri, 1989
    †Rhegnopsis palaeatlantica (Leidy, 1851) Cope, 1896 [Protobalaena palaeatlantica Leidy, 1851]
    †Nanisocetus (nomen nudum)

 

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