| Arrudatitan Temporal range: Late Cretaceous,
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| Left femur of A. maximus, from the holotype specimen MPMA 12-0001-97 | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | Saurischia |
| Clade: | †Sauropodomorpha |
| Clade: | †Sauropoda |
| Clade: | †Macronaria |
| Clade: | †Titanosauria |
| Clade: | †Lithostrotia |
| Clade: | †Aeolosaurini |
| Genus: | †Arrudatitan Silva et al., 2021 |
| Type species | |
| †Arrudatitan maximus Santucci & De Arruda-Campos, 2011
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Arrudatitan (meaning "Arruda's giant") is an extinct genus of titanosaur sauropod dinosaur known from the Late Cretaceous (Campanian-Maastrichtian)-aged Adamantina Formation of Brazil. The type species, A. maximus, was named and described in 2011 as a species of Aeolosaurus,[1] but was separated into its own genus in 2021.[2] It was relatively gracile for a titanosaur.
- ^ Santucci, R.M.; De Arruda-Campos, A.C. (2011). "A new sauropod (Macronaria, Titanosauria) from the Adamantina Formation, Bauru Group, Upper Cretaceous of Brazil and the phylogenetic relationships of Aeolosaurini". Zootaxa. 3085 (1): 1. doi:10.11646/zootaxa.3085.1.1. ISSN 1175-5334.
- ^ Silva, J.C. Jr.; Martinelli, A.G.; Iori, F.V.; Marinho, T.S.; Hechenleitner, E.M.; Langer, M.C. (2021). "Reassessment of Aeolosaurus maximus, a titanosaur dinosaur from the Late Cretaceous of Southeastern Brazil". Historical Biology: An International Journal of Paleobiology. 34 (3): 403–411. doi:10.1080/08912963.2021.1920016. S2CID 235526860.