Dinosauria›Reptilia
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Xiyunykus Xiyunykus pengi Xu et al. 2018
/zˈɪjuːnˌɪkəs/
estimated
Early Cretaceous (Valanginian) · 137.1–132.6 Mya
Key Statistics
Diet
carnivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
solitary
Where It Was Found
Country
China
Region
Xinjiang
Formation
Shengjinkou
Dig sites
1
distinct collections
Overview
Xiyunykus pengi is a theropod dinosaur known from the Early Cretaceous, roughly 137.1–132.6 million years ago. It was a carnivore. It is recorded as ground-dwelling and solitary. Fossils have been recovered from Xinjiang, China. It was named by Xu et al. 2018. The species is represented by 1 recorded occurrence in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~5%
confidence from occurrence count
Based on 1 recorded occurrence in the Paleobiology Database.
Geologic Time
Where Xiyunykus pengi sits in deep time
Xiyunykus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Xiyunykus pengi's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.