AlvarezsauroideaAsiaAverostraAvetheropodaCoelurosauriaDinosauriaEarly CretaceousEusaurischiaManiraptoraManiraptoriformesNeotheropodaOrionidesSaurischiaTetanuraeTheropodaTyrannoraptora

Xiyunykus pengi

Dinosaur: Xiyunykus pengi

Cretaceous: 125.8–113 Ma
Type: Theropod

Length*:2 m6.6 ft
Weight*:13 kg29 lb
Speed:42 km/h26 mph
ESR: 3 / 4 (estimated size reliability)
*The largest known specimen

Asia

Area: Asia


Period

Epoch: Early Cretaceous
Stage: Barremian-Aptian
Years: 125.8–113 Ma

Details

Status: valid
Author: Xu et al.
Year: 2018

Distribution

Area: Asia
Country: China
Region: Xinjiang
Formation: Tugulu Group

Classification

Dinosauria
Saurischia
Eusaurischia
Theropoda
Neotheropoda
Averostra
Tetanurae
Orionides
Avetheropoda
Coelurosauria
Tyrannoraptora
Maniraptoriformes
Maniraptora
Alvarezsauroidea


Locations


Sources

Material: Partial skeleton with incomplete skull.
References: Xu et al. (2018). "Two Early Cretaceous Fossils Document Transitional Stages in Alvarezsaurian Dinosaur Evolution".

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