Sonidosaurus

Sonidosaurus; Temporal range: Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Reconstructed skeleton
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	†Sauropodomorpha
Clade:	†Sauropoda
Clade:	†Macronaria
Clade:	†Titanosauria
Clade:	†Lithostrotia
Genus:	†Sonidosaurus
Species:	†S. saihangaobiensis
Binomial name
	†Sonidosaurus saihangaobiensis; Xu et al., 2006

Sonidosaurus (meaning "Sonid lizard", after Sonid, the large geographical area that includes the type locality

titanosaur which lived in what is now Inner Mongolia. The type species, Sonidosaurus saihangaobiensis, was described by Xu, Zhang, Tan, Zhao, and Tan in 2006. It was a small titanosaur, about 9 meters (30 ft) long.^[2] It was first discovered in the Saihangaobi, Iren Dabasu (Erlian) Formation, in 2001^[2] in a quarry which would later yield the remains of Gigantoraptor.^[3]

Classification

In a 2017 review of Asian titanosaurs, Sonidosaurus was considered a lithostrotian titanosaur, with possible saltasaurid affinities. In particular, it shared with saltasaurids and the Bor Guve titanosaur a posterior centrodiapophyseal lamina on its dorsal vertebrae.^[1]