When did it live?
How big was it?
How long was it?
How tall was it?
estimate
How heavy was it?
as long as 7 dogs nose to tail🍌as long as 39 bananas end to end🍉as heavy as 110 watermelons🧸as heavy as 29 kindergarten kids🎒as heavy as 17 school kids🏃could run 100 metres in 9.7 seconds (the fastest human needs 9.6)How big was Xuwulong compared to YOU?
Just maths in your browser. Nothing is saved or sent anywhere.
How fast was it?
Fun facts
Xuwulong is one of the most primitive members of the hadrosauriform group, which includes the duck-billed dinosaurs.3
The only known skeleton of Xuwulong is almost complete, including a full skull, backbone, and left hip bone.13
Its lower jaw had a V-shaped front end and a jaw joint that sat at mid-height of the jawbone, which is different from other hadrosauriforms.3
Xuwulong lived about 121 to 113 million years ago, during the Aptian age of the Early Cretaceous.2
The fossil was found in the Xiagou Formation, which was once a river or lake environment.1
Xuwulong was named in 2011 by Chinese paleontologists You Hailu, Li Daqing, and Liu Weichang.1
Most asked questions about Xuwulong
Ask Rex about Xuwulong
Rex only answers questions about this page. 10 questions a month.
Rex is an AI and can make mistakes. He runs on servers in the EU and questions are never saved. Never type your name or other personal things.
For dino experts
- Scientific name
- Xuwulong
- Named by
- You et al. 20115
- Group
- Beaked plant-eaters
- Family / clade
- Hadrosauroidea5
- Classification
- Ornithischia > Ornithopoda > Iguanodontia5
- Age of the rocks
- 121 to 113 million years (Aptian)5
- Rock formations
- Xiagou5
- Countries
- China5
- Fossil records
- 1 in the Paleobiology Database5
- Discovery
- The only known Xuwulong skeleton was discovered in 2006 in the Yujingzi Basin of Gansu, China, by a team including Chinese paleontologist You Hailu. It was named in 2011 after the courtesy name of geologist Wang Yue-lun.1
- Still debated
- Scientists are not sure exactly how Xuwulong is related to other early duck-billed dinosaurs, because it has a mix of primitive and advanced features.3
Where the facts come from
- Xuwulong (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- A New Hadrosauriform Dinosaur from the Early Cretaceous of Gansu Province, China (onlinelibrary.wiley.com)
- Xuwulong yueluni | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
- Xuwulong 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.
Rex is hungry! Dino Wiki is a dad's project for his dino-loving son, free with no ads. Grown-ups can feed Rex a snack to help keep it online.Feed Rex
Iguanodon
Tenontosaurus
Thescelosaurus
Zalmoxes
Camptosaurus
Rhabdodon
Stegosaurus
Archaeopteryx
Giganotosaurus
Microraptor
Deinonychus
Baryonyx