| Saurischia Seeley, 1887 |
| Sauropoda Marsh, 1878 |
| Neosauropoda Bonaparte, 1996 |
| Macronaria Wilson & Sereno, 1998 |
| Titanosauriformes Salgado, Coria and Calvo, 1997 |
| Titanosauriformes indet |
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