†[Eusauropoda] Upchurch 1995
   †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
     †Macronaria Wilson & Sereno 1998
       †Titanosauriformes Salgado, Coria & Calvo 1997
         ?Genus †Janenschia Wild, 1991 [monotypic]
           1 †Janenschia robusta Fraas, 1908