Genus
Valid Extinct

Xiyunykus

Xu et al. 2018

Xiyunykus is a genus of alvarezsauroid theropod from the Early Cretaceous-aged Tugulu Group of what is now China. Only one species has been described, Xiyunykus pengi.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Dinosaures
Carnivore Ground dwelling, solitary Terrestrial
Xiyunykus
click to enlarge
Scaled reconstruction of Xiyunykus. (Tom Parker, 2018) © Tomopteryx · CC BY-SA 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Theropoda Unranked clade
›
Neotheropoda Unranked clade
›
Averostra Unranked clade
›
Tetanurae Unranked clade
›
Coelurosauria Unranked clade
›
Alvarezsauria Infraorder
›
Alvarezsauroidea Unranked clade
›
Xiyunykus Genus
Measurements
Length
2 m ⓘ
Xiyunykus pengi
Mass
13 kg ⓘ
Xiyunykus pengi
Fossil sites 1 geolocated sites
Distribution
Top countries
🇨🇳 China
1
Geological formations
Shengjinkou
1
Temporal distribution
Valanginian (137.05–132.6 Ma)
1
Species (1)
Xiyunykus pengi 137 Ma
Images 1
Bibliography
Original description
X. Xu, J. Choiniere, and Q.-W. Tan, R. B. J. Benson, J. Clark, C. Sullivan, Q. Zhao, F.-L. Han, Q.-Y. Ma, Y.-M. He, S. Wang, H. Xing, L. Tan. 2018. Two early Cretaceous fossils document transitional stages in alvarezsaurian dinosaur evolution. Current Biology 28:2853-2860 DOI ↗
Bibliography (1)
X. Xu, J. Choiniere, and Q.-W. Tan, R. B. J. Benson, J. Clark, C. Sullivan, Q. Zhao, F.-L. Han, Q.-Y. Ma, Y.-M. He, S. Wang, H. Xing, L. Tan. 2018. Two early Cretaceous fossils document transitional stages in alvarezsaurian dinosaur evolution. Current Biology 28:2853-2860 DOI ↗