Jianchangosaurus
Jianchangosaurus was a small, feathered dinosaur that walked on two legs. It lived about 125 million years ago in what is now China. This dinosaur had a beak and teeth like a plant-eater, but scientists once thought it might eat meat.21
When did it live?
How big was it?
How long was it?
How tall was it?
at the hips
How heavy was it?
as long as 4 house cats nose to tail🍌as long as 11 bananas end to end🍉as heavy as 5 watermelons🏃could run 100 metres in 13 seconds (the fastest human needs 9.6)How big was Jianchangosaurus compared to YOU?
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Fun facts
Jianchangosaurus had wide, unbranched feathers on its neck that may have been used for display, like a peacock's tail.32
It is one of the most complete therizinosaur skeletons ever found, missing only the tip of its tail.3
Its teeth were set in a shelf-like jaw, similar to some plant-eating dinosaurs like ornithopods and ceratopsians.3
Jianchangosaurus was about 2 meters (6.6 feet) long and stood 1 meter (3.3 feet) tall at the hips.2
It lived during the Early Cretaceous period, between about 125 and 119 million years ago.1

Most asked questions about Jianchangosaurus
?How big was Jianchangosaurus?
About 2 metres (6.6 feet) long and 1 metre (3.3 feet) tall at the hips. It probably weighed around 26 kilograms (57 pounds).2
?What did Jianchangosaurus eat?
It was a plant-eater. Its teeth were shaped to slice plant fibres, and it had a beak at the front of its mouth.23
?Did Jianchangosaurus have feathers?
Yes. Impressions of wide, unbranched feathers were found with its skeleton, similar to those of Beipiaosaurus.23
?When did Jianchangosaurus live?
It lived about 126 million years ago, during the Early Cretaceous Period.2
?Where was Jianchangosaurus found?
Its fossil was found in Jianchang County, Liaoning Province, China, in the Yixian Formation.2

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For dino experts
- Scientific name
- Jianchangosaurus
- Named by
- Pu et al. 20134
- Group
- Odd feathered dinos
- Family / clade
- Therizinosauria4
- Classification
- Theropoda > Therizinosauria4
- Age of the rocks
- 126 to 120 million years (Barremian / Aptian)4
- Rock formations
- Yixian4
- Countries
- China4
- Fossil records
- 1 in the Paleobiology Database4
- Discovery
- Jianchangosaurus was named in 2013 by Pu and colleagues based on a nearly complete skeleton found in Liaoning Province, China.13
- Still debated
- Scientists are not sure if the wide, unbranched feathers on Jianchangosaurus were used mainly for display or for other purposes like keeping warm.32
Where the facts come from
- PBDB Taxon (paleobiodb.org)
- Jianchangosaurus (en.wikipedia.org)
- An Unusual Basal Therizinosaur Dinosaur with an Ornithischian Dental Arrangement from Northeastern China (pmc.ncbi.nlm.nih.gov)
- Jianchangosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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