Shuangbaisaurus

Say it: SHWANG-bye-SORE-us

Name means: “Shuangbai lizard, named after Shuangbai County in China”1

Ate: MeatMeat-eating dinosEarly Jurassic

Shuangbaisaurus was a meat-eating dinosaur that lived in China about 200 million years ago. It had two ridges on its skull above its eyes, like a pair of eyebrows made of bone.2

Lived

201 to 200 million years ago3

Early Jurassic

Fossils found in

Liuna Village, Anlongbao Town, Shuangbai County, Yunnan Province, China2

Food

Meat3

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

cool stuff

Fun facts

Shuangbaisaurus is known from only one partial skull and part of its lower jaw.1

The skull of Shuangbaisaurus was about 54 centimeters (21 inches) long.2

It had two bony crests that ran along the top edges of its eye sockets, called parasagittal crests.2

Shuangbaisaurus lived during the Early Jurassic Period, about 201 to 199 million years ago.3

Its fossils were found in purple muddy siltstone, which is a type of rock formed from ancient mud.1

The name Shuangbaisaurus comes from Shuangbai County, where the fossil was discovered.1

AI-made picture of Shuangbaisaurus — An AI-made picture of how Shuangbaisaurus might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.

you asked

Most asked questions about Shuangbaisaurus

?What did Shuangbaisaurus eat?

Shuangbaisaurus was a meat-eating dinosaur, so it ate other animals. It lived in China about 200 million years ago.1

?How big was Shuangbaisaurus?

Its skull was about 54 centimeters (21 inches) long. Scientists do not know its full body size because only a partial skull has been found.1 2

?Why did Shuangbaisaurus have crests?

Scientists are not sure why it had crests. The crests were thin, paired ridges of bone along the top edges of its eye sockets, and they may have been used for display or to tell species apart.1 2

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For dino experts

Scientific name: Shuangbaisaurus
Named by: Wang et al. 20173
Group: Meat-eating dinos
Family / clade: Theropoda3
Classification: Theropoda3
Age of the rocks: 201 to 200 million years (Hettangian)3
Rock formations: Fengjiahe3
Countries: China3
Fossil records: 1 in the Paleobiology Database3
Discovery: Shuangbaisaurus was named in 2017 by Wang Guo-Fu, You Hai-Lu, Pan Shi-Gang, and Wang Tao based on a partial skull found in Yunnan Province, China.1
Still debated: Scientists are not sure exactly how big Shuangbaisaurus was because only a partial skull has been found.1

Where the facts come from

Shuangbaisaurus (en.wikipedia.org)
A new crested theropod dinosaur from the Early Jurassic of Yunnan Province, China (ivpp.ac.cn)
Shuangbaisaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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