After Upchurch, 1998, Wilson & Sereno, 1998, Curry Rogers & Forster, 2001, Wilson, 2002, Wilson & Upchurch, 2003, Keesey, 1996-2004, Bonaparte, Gonzáles-Riga & Apesteguía, 2006, Calvo, Porfiri, González-Riga & Kellner, 2007, and Calvo, González-Riga & Porfiri, 2008

<==o †Titanosauria Lydekker, 1877 sensu Wilson & Sereno, 1998 [non Bonaparte & Coria, 1993] (titanosaurs; titanosaurit)
   |-- †Chubutisaurus insignis Corro, 1974
   `--+?- †Daxiatitan binglingi You, Li, Zhou & Ji, 2008; E.Cret. EAs.
      |?- †Ligabuesaurus leanzai Bonaparte, Gonzáles-Riga & Apesteguía, 2006
      |?-+-- †Malarguesaurus florenciae González-Riga, Previter & Pirrone, 2009; L.Cret. SAm.
      |  `--o †Phuwiangosaurus Martin, Buffetaut & Suteethorn, 1994
      |     |--
      |     `-- †P. sirindhornae Martin, Buffetaut & Suteethorn, 1994
      `--+-- †Andesaurus delgadoi Calvo & Bonaparte, 1991 [Andesauridae]
         `--o †Lithostrotia Upchurch et al, in press [Titanosauroidea Lydekker, 1877 sensu Wilson & Sereno, 1998; Titanosauridae Lydekker, 1877 sensu Salgado et al., 1997, and Calvo, González-Riga & Porfiri, 2008]
            |-- †Argentinosaurus huinculensis Bonaparte & Coria, 1993
            `--+--+--o †Antarctosaurus Huene, 1929a [Antarctosauridae]
               |  |  |-- †A. wichmannianus Huene, 1929a
               |  |  |-- †A. giganteus Huene, 1929a
               |  |  `-- †A. brasiliensis Arid & Vizotto, 1972
               |  `--+-- †Malawisaurus dixeyi (Haughton, 1928) Jacobs, Winkler, Downs & Gomani, 1993 [Giganotosaurus dixeyi Haughton, 1928; Gigantosaurus robustus Fraas, 1908; Tornieria dixeyi (Fraas, 1908) Sternfeld, 1911; Janenschia dixeyi (Fraas) Wild, 1991]
               |     `--o †Longkosauria Calvo, Porfiri, González-Riga & Kellner, 2007
               |        |-- †Mendozasaurus neguyelap González-Riga, 2003 [sensu González-Riga, 2003, and Calvo et al., 2007]
               |        `-- †Futalognkosaurus dukei Calvo, Porfiri, González-Riga & Kellner, 2007; U.Cret. SWSAm.
               `--+-- †Epachthosaurus sciuttoi Powell, 1990
                  `--o †Eutitanosauria Sanz et al., 1997 sensu Calvo, González-Riga & Porfiri, 2008
                     |--+--o †Nemegtosauridae
                     |  |  |?- †Dyslocosaurus polyonychius McIntosh, Coombs & Russell, 1992
                     |  |  |?- †Huabeisaurus allocotus Pang & Cheng, 2000
                     |  |  |-- †Quaesitosaurus orientalis Kurzanov & Bannikov, 1983
                     |  |  `--+-- †Rapetosaurus krausei Curry Rogers & Forster, 2001
                     |  |     `-- †Nemegtosaurus mongoliensis Nowinski, 1971
                     |  `--o †Aeolosaurini Franco-Rosas et al., 2004 sensu Franco-Rosas et al., 2004
                     |     |?- †Adamantisaurus mezzalirai Santucci & Bertini, 2006
                     |     |?- †Isisaurus colberti (Jain & Bandyopadhyay, 1997) Wilson & Upchurch, 2003 [Titanosaurus colberti Jain & Bandyopadhyay, 1997]
                     |     |?- †Mendozasaurus neguyelap Gonzalez-Riga, 2003
                     |     |--o †Rinconsauria Calvo, González-Riga & Porfiri, 2008
                     |     |  |-- †Muyelensaurus pecheni Calvo, González-Riga & Porfiri, 2008 [“Loma Lindero titanosaur”] U.Cret. SWSAm.
                     |     |  `-- †Rinconsaurus caudamirus Calvo & Gonzalez-Riga, 2003; U.Cret. SWSAm.
                     |     `--o †Aeolosaurini Franco-Rosas et al., 2004 sensu Calvo, Porfiri, González-Riga & Kellner, 2007, and Calvo, González-Riga & Porfiri, 2008
                     |        |-- †Gondwanatitan faustoi Kellner & de Azevedo, 1999 [=? Aeolosaurus]
                     |        `--o †Aeolosaurus Powell,1988 [=? Gondwanatitan]
                     |           |-- †A. rionegrinus Powell,1988
                     |           `-- †A. colhuehuapensis Casal, Martínez, Luna, Sciutto & Lamanna, 2007
                     `--+-- †Lirainosaurus astibiae Sanz, Powell, Le Loeuff, Martínez & Pereda-Suberbiola, 1999
                        `--+-- †Argyrosaurus superbus Lydekker, 1893a [Argyrosauridae]
                           `--o †Saltasauridae Powell, 1988 sensu Wilson & Upchurch, 2003 [Titanosauridae Lydekker, 1877; nomen invalida] (titanosaurids; titanosauridit)
                              |--o †Opisthocoelicaudiinae McIntosh, 1990 sensu  Calvo, Porfiri, González-Riga & Kellner, 2007
                              |  |-- †Alamosaurus sanjuanensis Gilmore, 1922
                              |  `-- †Opisthocoelicaudia skarzynskii Borsuk-Biallynicka, 1977 []
                              `--o †Saltasauriinae Powell, 1992 (1987)
                                 |-- †Neuquensaurus australis (Lydekker, 1893) Powell, 1992 (1986) [taxonomic history]
                                 `--+-- †Rocasaurus muniozi Salgado & Azpilicueta, 2000
                                    `-- †Saltasaurus loricatus Bonaparte & Powell, 1980 [Microcoelus Lydekker, 1893a; ?Loricosaurus Huene, 1929a]

Titanosauria incertae sedis:

Aegyptosaurus baharijensis Stromer, 1932
    †Agustinia ligabuei Bonaparte, 1999a
    †Amargatitanis macni Apesteguía, 2007
    †Ampelosaurus atacis Le Loeuff, 1995
    †Atacamatitan chilensis Kellner, Rubilar-Rogers, Vargas & Suárez, 2011
    †Baurutitan britoi Kellner, Campos & Trotta, 2005
    †Bruhathkayosaurus matleyi Yadagiri & Ayyasami, 1989
    †Bonatitan reigi Martinelli & Forasiepi, 2004
    †Bonitasaura salgadoi Apesteguía, 2004
    †Gobititan shenzhouensis You et al., 2003b
    †Haestasaurus becklesii (Mantell, 1852) Upchurch, Mannion & Taylor, 2015[Pelorosaurus becklesii Mantell, 1852; Morosaurus becklesii Marsh, 1889, Cetiosaurus brevis Lydekker; Phuwiangosaurus? becklesii (Mantell, 1852)]
    †Hypselosaurus priscus Matheron, 1869
    †Jainosaurus septentrionalis (von Huene & Matley, 1933) Hunt, Lockley, Lucas & von Meyer, 1995 [“Antarctosaurus” septentrionalis Huene & Matley, 1933; nomen nudum]
    †Jiangshanosaurus lixianensis Tang, Kang, Jin, Wei & Wu, 2001
    †Karongasaurus gittelmani Gomani, 2005
    †Laplatasaurus araukanicus (Huene, 1929a) [Titanosaurus araukanicus Huene, 1929a; Antarctosaurus sp. Bonaparte & Rossi, 1967]
    †Magyarosaurus dacus (Nopcsa, 1915) Huene, 1932 [Titanosaurus dacus Nopcsa, 1915; M. transsylvanicus Huene, 1932; M. hungaricus Huene, 1932; M. sp. Huene, 1932]
    †Mnyamawamtuka moyowamkia Gorscak & O'Connor, 2019
    †Paralititan stromeri Smith, Lamanna, Lacovara, Dodson, Smith, Poole, Giegengack & Attia, 2001
    †Pellegrinisaurus powelli Salgado, 1996
    †Puertasaurus reuili Novas, Salgado, Calvo & Agnolin, 2005
    †Sonidosaurus saihangaobiensis Xu, Zhang, Q. Tan, Zhao & L. Tan, 2006
    †Tangvayosaurus hoffeti Allain, Taquet, Battail, Dejax, Richir, Veran, Limon-Duparcmeur, Vacant, Mateus, Sayarath, Khenthavong & Phouyavong, 1999
    †“Titanosaurus”sp. Powell, 1987 [U. Cret. SA.]
    †Trigonosaurus pricei Campos, Kellner, Bertini & Santucci, 2005
    †Janenschia robusta (Fraas, 1908) Wild, 1991 [Gigantosaurus robustus Fraas, 1908; Tornieria robusta (Fraas, 1908) Sternfeld, 1911; ]
    †Venenosaurus dicrocei Tidwell, Carpenter & Meyer, 2001

Titanosauria nomina dubia & invalida:

    †“Antarctosaurus” jaxarticus Riabinin, 1939; nomen nudumMacrurosaurus semnus Seeley, 1896 [Acanthopholis platypus Seeley, 1896 in partim]; nomen dubiumTitanosaurus Lydekker, 1877; nomen dubiumT. indicus Lydekker, 1877; nomen dubiumT. blanfordi Lydekker, 1879; nomen dubiumT. valdensis Huene, 1929a [Ornithopsis sp. Lydekker, 1887; Titanosaurus sp.A Lydekker, 1888; Titanosaurus sp.B Lydekker, 1888; Iuticosaurus valdensis (Huene) Le Loeuff, 1993]; nomen dubiumT. lydekkeri Huene, 1929 [Macrurosaurus semnus Seeley, 1896 McIntosh, 1990; Iuticosaurus lydekkeri (Huene) Le Loeuff, 1993]; nomen dubiumT. madagascariensis Depéret, 1896 [Laplatasaurus madagascariensis (Depéret, 1896) Huene, 1929]; nomen dubiumT. nanus Lydekker, 1893a; nomen dubiumT. rahioliensis Mathur & Srivastava, 1987; nomen dubiumT. falloti Hoffet, 1942; nomen dubiumT. robustus Huene, 1929a [Neuquensaurus robustus (Huene, 1929a) Powell, 1992; Saltasaurus robustus (Huene, 1929a) McIntosh, 1990]; nomen dubium

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