After Welsh, 2002, Bertelli & Giannini, 2005, Ksepka & Clarke, 2010, Clarke, Ksepka, Salas-Gismondi, Altamirano, Shawkey, D'Alba, Vinther, DeVries & Baby, 2010 (fig. S10), and Ksepka, Fordyce, Ando & Jones, 2012, with fossil species from Olson, 1985, and Feduccia, 1980, 1996, and Recent species from Sibley & Monroe, 1990, and Peterson, 2002-2004, and Finnish vernacular names from Lokki, Jännes & Nikander, 1992

<==o Sphenisciformes Sharpe, 1891 (penguins; pingviinilinnut)
   `==o †Palaeeudyptinae
      |--o †Waimanu Jones, Ando & Fordyce, in Slack, Jones, Ando, Harrison, Fordyce, Arnason & Penny, 2006; L.Pal., NZ.
      |  |-- †W. manneringi Jones, Ando & Fordyce, in Slack, Jones, Ando, Harrison, Fordyce, Arnason & Penny, 2006
      |  `-- †W. tuatahi Jones, Ando & Fordyce, in Slack, Jones, Ando, Harrison, Fordyce, Arnason & Penny, 2006
      `--+--o †Delphinornis Wiman, 1905 [Notodyptes Marples, 1953; Palaeospheniscus in partim]
         |  |-- †D. larseni [D. larsenii]
         |  |-- †D. gracilis [=? Palaeospheniscus gracilis]
         |  `--+-- †D. arctowskii
         |     `-- †D. wimani (Marples, 1953) Ksepka & Clarke, 2010 [Notodyptes wimani Marples, 1953; Archaeospheniscus wimani Simpson, 1971a; Palaeospheniscus wimani]
         `--+-- †Marambiornis exilis
            |-- †Mesetaornis polaris
            `--+-- †Perudyptes devriesi Clarke, Ksepka, Stucchi, Urbina, Giannini, Bertelli, NarvŠez & Boyd, 2007
               `--+--o †Anthropornis
                  |  |-- †A. sp. [UCMP 321023]
                  |  |-- †A. nordenskjoeldii Wiman, 1905 [incl.? “Pachydyptessimpsoni Jenkins, 1974]
                  |  `-- †A. grandis
                  `--+--+-- †Inkayacu paracasensis Clarke, Ksepka, Salas-Gismondi, Altamirano, Shawkey, D'Alba, Vinther, DeVries & Baby, 2010
                     |  |-- Burnside “Palaeeudyptes”
                     |  |-- †“Palaeeudyptesklekowskii Myrcha, Tatur & del Valle, 1990
                     |  `-- †“Palaeeudyptesgunnari Wiman, 1905
                     `--+-- †Icadyptes salasi Clarke, Ksepka, Stucchi, Urbina, Giannini, Bertelli, NarvŠez & Boyd, 2007
                        |-- †Pachydyptes ponderosus Oliver, 1930
                        `--+--o †Kairuku Ksepka, Fordyce, Ando & Jones, 2012 [Duntroon “Palaeeudyptes”] Olig. NZ.
                           |  |-- †K. waitaki Ksepka, Fordyce, Ando & Jones, 2012
                           |  `-- †K. grebneffi Ksepka, Fordyce, Ando & Jones, 2012
                           `--+-- †Duntroonornis parvus Marples, 1952
                              |-- †Archaeospheniscus lowei Marples, 1952
                              |-- †Archaeospheniscus lopdelli Marples, 1952
                              `--+--o †Paraptenodytes
                                 |  |?- †P. brodkorbi
                                 |  |?- †P. robustus
                                 |  `-- †P. antarcticus [=? Palaeeudyptes antarcticus]
                                 `--+--o †Platydyptes
                                    |  |?- †P. amiesi
                                    |  |-- †P. marplesi Simpson, 1971 [=? Palaeeudyptes marplesi]
                                    |  `-- †P. novaezealandiae Oliver, 1930
                                    `--+--+-- †Eretiscus tonnii
                                       |  |-- †Palaeospheniscus patagonicus
                                       |  |?- †Palaeospheniscus gracilis [=? Delphinornis gracilis]
                                       |  |-- †Palaeospheniscus bergi Moreno & Mercerat, 1891
                                       |  `-- †Palaeospheniscus biloculata
                                       `--+-- †Dege hendeyi
                                          |-- †Marplesornis novaezealandiae
                                          `--o Spheniscidae Bonaparte, 1831 (Modern penguins; nykypingviinit)
                                             |--o Aptenodytes J.F. Miller, 1778 (kuningaspingviinit)
                                             |  |-- A. patagonicus J.F. Miller, 1778 (King Penguin; kuningaspingviini)
                                             |  `-- A. forsteri G.R. Gray, 1844 (Emperor Penguin; keisaripingviini)
                                             `--+?- †Pygoscelis calderensis
                                                |?- †Pygoscelis tyreei Simpson, 1972
                                                |--o Pygoscelis Wagler, 1832 (mustapääpingviinit)
                                                |  |-- P. antarcticus (J.R. Forster, 1781) [P. antarctica] (myssypingviini)
                                                |  `--+-- P. papua (J.R. Forster, 1781) (valkokulmapingviini)
                                                |     `-- P. adeliae (Hombron & Jacquinot, 1841) (jääpingviini)
                                                `--+-- †Pygoscelis grandis
                                                   |--+--o Eudyptula minor (J.R. Forster, 1781) Bonaparte, 1856 (sinipingviini)
                                                   |  |  |-- E. m. minor (sinipingviini)
                                                   |  |  `-- E. m. albosignata (liuskepingviini)
                                                   |  `--o Spheniscus Brisson, 1760 (silmälasipingviinit)
                                                   |     |?- †S. chilensis Emslie & Correa, 2003
                                                   |     |--+-- †S. megaramphus Stucchi et al, 2003
                                                   |     |  `-- †S. urbinai Stucchi, 2001
                                                   |     `--+-- †S. muizoni Göhlich, 2007
                                                   |        `--+--+-- S. demersus (Linnaeus, 1758) (afrikanpingviini)
                                                   |           |  `-- S. magellanicus (J.R. Forster, 1781) (patagonianpingviini)
                                                   |           `--+-- S. humboldti Meyen, 1834 (perunpingviini)
                                                   |              `-- S. mendiculus Sundevall, 1871 (galapagosinpingviini)
                                                   `--+-- Megadyptes antipodes (Hombron & Jacquinot, 1841) Milne-Edwards, 1880 (keltasilmäpinviini, hoiho)
                                                      `--+-- †Madrynornis mirandus Acosta Hospitaleche, Tambussi, Donato & Cozzuol, 2007
                                                         `--o Eudyptes Vieillot, 1816 (töyhtöpingviinit)
                                                            |?- †E. sp. [<Chatham Islands>]
                                                            |--+-- E. moseleyi [E. chrysocome moseleyi] (moseley's penguin)
                                                            |  `--+-- E. filholi Huttom, 1879 (Eastern Rockhopper Penguin)
                                                            |     `-- E. chrysocome (J.R. Forster, 1781) (rockhopper penguin; kalliotöyhtöpingviini)
                                                            `--+--+-- E. chrysolophus (Brandt, 1837) (kultatöyhtöpingviini)
                                                               |  `-- E. schlegeli Finsch, 1876 (töyhtöpingviini)
                                                               `--+-- E. sclateri Buller, 1888 (pystötöyhtöpingviini)
                                                                  `--+-- E. robustus Oliver, 1953 (snaressaartenpingviini)
                                                                     `-- E. pachyrhynchus G.R. Gray, 1845 (vuonopingviini)

Sphenisciformes incertae sedis:

Some are taxa not treated by Ksepka & Clarke, 2010, or Clarke et al., 2010

Anthropodyptes gilliArthrodytes
        †“A.” andrewsiA. grandis [=? Anthropornis grandis]
        †A. ridgeniChubutodyptes biloculataCrossvallia unienwillia Tambussi, Reguero, Marenssi & Santillana, 2005; L.Pal. Ant.
    †Inguza predemersus (Simpson) Simpson, 1975 [Spheniscus predemersus]
    †Korora oliveriNucleornis Simpson 1979
    †“Pachydyptessimpsoni Jenkins, 1974 [Anthropornis nordenskjoeldii] [SAMA P14157]
    †Palaeeudyptes Huxley, 1859 [polyphyletic]
        †P. sp.1 [Australia]
        †P. sp.2 [New Zealand]
        †P. marplesi Brodkorb, 1963 [=? Platydyptes marplesi]
        †P. antarcticus Huxley, 1859
    †PseudaptenodytesP. minorP. macraeiWimantornis seymourensis

Reference(s):