Genus
Valid Extinct

Sinornithosaurus

Xu et al. 1999
Etymology Oiseau-reptile de Chine

Sinornithosaurus is a genus of feathered dromaeosaurid dinosaur from the early Cretaceous Period of the Yixian Formation in what is now China. It was the fifth non–avian feathered dinosaur genus discovered by 1999. The original specimen was collected from the Sihetun locality of western Liaoning. It was found in the Jianshangou beds of the Yixian Formation, dated to 124.5 million years ago. Additional specimens have been found in the younger Dawangzhangzi bed, dating to around 122 million years ago.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
3
Group
Dinosaures
Carnivore Ground dwelling Terrestrial
Sinornithosaurus
click to enlarge
Sinornithosaurus millenii fossil displayed in Hong Kong Science Museum © Laikayiu · CC BY-SA 3.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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Theropoda Unranked clade
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Neotheropoda Unranked clade
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Averostra Unranked clade
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Tetanurae Unranked clade
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Coelurosauria Unranked clade
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Maniraptora Unranked clade
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Paraves Unranked clade
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Deinonychosauria Infraorder
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Dromaeosauridae Family
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Microraptorinae Subfamily
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Sinornithosaurus Genus
Measurements
Length
1,2 m ⓘ
Sinornithosaurus millenii
2 m ⓘ
Mass
2,9 kg ⓘ
Sinornithosaurus millenii
Fossil sites 3 geolocated sites
Distribution
Top countries
🇨🇳 China
3
Geological formations
Yixian
3
Temporal distribution
Barremian (125.77–121.4 Ma)
3
Species (2)
Sinornithosaurus haoiana subjective synonym of Sinornithosaurus millenii 126 Ma
Sinornithosaurus millenii 126 Ma
Images 3
Bibliography
Original description
X. Xu, X.-L. Wang, and X.-C. Wu. 1999. A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China. Nature 401:262-266 DOI ↗
Bibliography (3)
L. Xing, P. R. Bell, and W. S. Persons, S. Ji, T. Miyashita, M. E. Burns, Q. Ji, P. J. Currie. 2012. Abdominal contents from two large early cretaceous compsognathids (Dinosauria: Theropoda) demonstrate feeding on confuciusornithids and dromaeosaurids. PLoS One 7(8):e44012:1-11 DOI ↗
J. Liu, S. Ji, and F. Tang, C. Gao. 2004. A new species of dromaeosaurids from the Yixian Formation of western Liaoning. Geological Bulletin of China 23(8):778-783
X. Xu, X.-L. Wang, and X.-C. Wu. 1999. A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China. Nature 401:262-266 DOI ↗