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Yuanmouraptor lived about 174 to 168 million years ago, during the Aalenian and Bajocian ages of the Middle Jurassic.2
The only known fossil of Yuanmouraptor includes a nearly complete skull, lower jaws, ten neck vertebrae, and the first back vertebra.1
Its skull was about 60 centimetres (24 inches) long when fully reconstructed, which is smaller than the skull of its relative Yangchuanosaurus.1
Yuanmouraptor had special air sacs in its neck bones, shown by deep holes called pneumatic foramina on the third neck vertebra.1
The bones of the holotype show that the neural arches were fused to the vertebrae, meaning this dinosaur was nearly full-grown when it died.1

Ebibuuzo ebisinga okubuuzibwa ku Yuanmouraptor
?How big was Yuanmouraptor?
Yuanmouraptor was a medium sized dinosaur. Its skull was about 60 centimetres long, which is smaller than the skull of its relative Yangchuanosaurus, which was about 80 centimetres long.1
?What did Yuanmouraptor eat?
Yuanmouraptor was a meat-eater. It had sharp teeth and chased other animals through ancient forests.1
?When did Yuanmouraptor live?
Yuanmouraptor lived about 174 to 168 million years ago, during the Aalenian and Bajocian ages of the Middle Jurassic.1
?Where was Yuanmouraptor found?
Yuanmouraptor was found in Yuanmou County, Yunnan Province, China, in the Zhanghe Formation.1
Eri abakugu mu dayinoso
- Erinnya lya ssaayansi
- Yuanmouraptor
- Yatuumibwa
- Zou et al. 20254
- Ekibinja
- Dayinoso ezirya ennyama
- Ekika / ekibinja
- Metriacanthosauridae4
- Engabanya
- Theropoda > Allosauroidea4
- Emyaka gy'enjazi
- emyaka obukadde 175 okutuuka ku 168 (Aalenian / Bajocian)4
- Ensengeka z'enjazi
- Zhanghe4
- Ensi
- Cayina4
- Ebisigalira ebyazuulibwa
- 1 mu The Paleobiology Database4
- Okuzuulibwa
- The Yuanmouraptor fossil was found in March 2006 on a farm near Xiabanjing Village in Yuanmou County, Yunnan, China. Scientists Zou, Chen, Wang, and others named it in 2025.1
- Kikyakubaganyizibwako ebirowoozo
- Scientists are still debating exactly how Yuanmouraptor is related to other metriacanthosaurids, because its fossils are incomplete and it is very old.3
Ebituufu gye biva
- Yuanmouraptor (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- A new metriacanthosaurid theropod dinosaur from the Middle Jurassic of Yunnan Province, China - PubMed (pubmed.ncbi.nlm.nih.gov)
- Yuanmouraptor in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.
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