Wulong
Wulong was a tiny, feathered dinosaur that lived about 120 million years ago in what is now China. It had long tail feathers and looked a bit like a bird, but it was actually a fierce little hunter related to Velociraptor.1
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Fun facts
Wulong was only about 1 year old when it died, and it was still growing.1
It had two very long tail feathers that were more than 12 centimeters (about 5 inches) long, probably used for display.2
Wulong had feathers on its arms, legs, and tail, including fluffy down feathers and stiff flight feathers.1
Its skeleton was found lying in a natural pose, with all bones still connected.2
Wulong had more than 29 bones in its tail, which helped make it a good runner and jumper.2
Scientists studied the inside of Wulong's leg bones to figure out its age, the first time this was done for a microraptorine dinosaur.1

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Myth buster
Myth: Some people think all dinosaurs with feathers could fly like birds.
Truth: Wulong had feathers but could not fly. It used its feathers for warmth, display, and maybe gliding short distances.1
For dino experts
- Scientific name
- Wulong
- Named by
- Poust et al. 20203
- Group
- Raptors
- Family / clade
- Dromaeosauridae3
- Classification
- Theropoda > Dromaeosauridae3
- Age of the rocks
- 121 to 113 million years (Aptian)3
- Rock formations
- Jiufotang3
- Countries
- China3
- Fossil records
- 1 in the Paleobiology Database3
- Discovery
- Wulong was named in 2020 by Ashley Poust and colleagues. The only known fossil was found in the Jiufotang Formation in Liaoning, China.31
- Still debated
- Scientists are not sure exactly how big a fully grown Wulong would have been, because the only specimen found so far is a juvenile.1
Where the facts come from
- A new microraptorine theropod from the Jehol Biota and growth in early dromaeosaurids (pubmed.ncbi.nlm.nih.gov)
- Description and ontogenetic assessment of a new Jehol microraptorine (scholarworks.montana.edu)
- Wulong in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are dino fans, not a science journal. Tell us at [email protected] and we will fix it.