Shuangbaisaurus anlongbaoensis is an unclassified basal theropod. It would have been bipedal with a large toothy head, and dual crests along its snout, and two smaller crests over the eyes.
Shuangbaisaurus would have lived in the Early Jurassic of what is now central Yunnan province in China. While it was not classified into a family in its initial study (and no further studies have been completed yet), it has some similarities to Dilophosaurus and Sinosaurus, meaning it may be related to them to some degree.
The holotype consists of a partial skull, missing the upper jaws. It was discovered in 2017 during an expedition to Liuna Village, Anlongbao Township in Shuangbai County, Yunnan Province, China. No paratypes have been found.
"Shuangbaisaurus" comes from Shuangbai County, where the holotype was found; "saurus" is Greek for "lizard". "Anlongbao" comes from the township of Anlongbao (also spelled Alongbo) where the holotype was discovered, and translates into English as "dragon-placing fort"; "ensis" is Greek for "from".
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