†[Eusauropoda] Upchurch 1995
   †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
     †Macronaria Wilson & Sereno 1998
       †Titanosauriformes Salgado, Coria & Calvo 1997
         †Somphospondyli Wilson & Sereno 1998
           [plesion] Genus †Ligabuesaurus Bonaparte, González-Riga & Apesteguía, 2006
             †Ligabuesaurus leanzi Bonaparte, González-Riga & Apesteguía, 2006