†Sonidosaurus Xu et al. 2006 (sauropod)
Full reference: X. Xu, X. Zhang, Q. Tan, X. Zhao, and L. Tan. 2006. A new titanosaurian sauropod from Late Cretaceous of Nei Mongol, China. Acta Geologica Sinica 80(1):20-26
Parent taxon: Somphospondyli according to M. D. D'Emic 2012
Sister taxa: Angolatitan, Argentinosaurus, Astrophocaudia, Brontomerus, Chubutisaurus, Diamantinasaurus, Erketu, Euhelopodidae, Gobititan, Huanghetitan, Ligabuesaurus, Liubangosaurus, Malarguesaurus, Phuwiangosaurus, Qiaowanlong, Ruyangosaurus, Sauroposeidon, Tangvayosaurus, Tastavinsaurus, Titanosauria
Subtaxa: Sonidosaurus saihangaobiensis
Ecology: ground dwelling herbivore