Dinosauria›Reptilia›Theropoda›Alvarezsauridae
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Xixianykus Xixianykus zhangi Xu et al. 2010

/zˈɪksiənˌɪkəs/ estimated
Late Cretaceous (Santonian) · 89.8–83.6 Mya

Key Statistics

Diet
carnivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
solitary

Where It Was Found

Country
China
Region
Henan
Formation
Majiacun
Dig sites
1
distinct collections
Recorded finds in China. Present-day positions: the continents have moved since.

Overview

Xixianykus zhangi is a theropod dinosaur known from the Late Cretaceous, roughly 89.8–83.6 million years ago. It was a carnivore. It is recorded as ground-dwelling and solitary. Fossils have been recovered from Henan, China. It was named by Xu et al. 2010. 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 Xixianykus zhangi sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Xixianykus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Xixianykus zhangi'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.

predator–prey
Zhanghenglong
Zhanghenglong yangchengensis
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coexisted–with
Gobihadros
Gobihadros mongoliensis
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coexisted–with
Notocolossus
Notocolossus gonzalezparejasi
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coexisted–with
Niobrarasaurus
Niobrarasaurus coleii
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coexisted–with
Huehuecanauhtlus
Huehuecanauhtlus tiquichensis
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coexisted–with
Talarurus
Talarurus plicatospineus
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same–clade
Fumicollis
Fumicollis hoffmani
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same–clade
Chupkaornis
Chupkaornis keraorum
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