Borealosaurus is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous of northern China.

Temporal range: Late Cretaceous, 95–90 Ma
Scientific classification

You et al., 2004
  • Borealosaurus wimani You at al, 2004


The type and only species is Borealosaurus wimani, based on fragmentary remains from the Sunjiawan Formation of Liaoning. It has been estimated that this creature measured 12 metres in length, with a weight of 10 tonnes. The morphology of a mid-distal caudal vertebra was considered suggestive of a relationship with the Mongolian titanosaur Opisthocoelicaudia. However, in their overview of Cretaceous sauropod remains from Central Asia, Averianov and Sues considered Borealosaurus a non-lithostrotian titanosaur due to the lack of procoely in the middle caudal vertebrae.[1]

It was described by Hailu, Qiang, Lamanna, Jinglu and Yinxiang, in 2004. It was named from Greek Βορεας (the North wind) and σαυρος (lizard), with its specific name being given in honor of Swedish paleontologist Carl Wiman, who named the first Chinese dinosaur.[2]


  1. ^ Averianov, Alexander; Sues, Hans-Dieter (2017). "Review of Cretaceous sauropod dinosaurs from Central Asia". Cretaceous Research. 69: 184. doi:10.1016/j.cretres.2016.09.006.
  2. ^ You, H.; Ji, Q.; Lamanna, M. C.; Li, J.; Li, Y. "A titanosaurian sauropod dinosaur with opsithocoelous caudal vertebrae from the early Late Cretaceous of Liaoning province, China". Acta Geologica Sinica. 78 (4): 907–911. doi:10.1111/j.1755-6724.2004.tb00212.x.

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