Genus

Valid Extinct

Jian

Zhou et al. 2026

Jian changmaensis is an extinct species of microraptorine theropod dinosaur known from the Early Cretaceous Xiagou Formation of China. J. changmaensis is the only species in the genus Jian, known from a pectoral girdle and partial forelimb. After the discovery of more than 100 bird fossils in the formation, this specimen is the first non-avian dinosaur to be described from it.

Temporal range

Triassic

Jurassic

Cretaceous

Paleogene

Neogene

252 201 145 66 0 Ma

PBDB occurrences

Group

Dinosaures

Carnivore Ground dwelling Terrestrial

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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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Jian Genus

Fossil sites 1 geolocated sites

Distribution

Top countries

🇨🇳 China

Geological formations

Xiagou

Temporal distribution

Aptian (121.4–113.2 Ma)

Species (1)

Jian changmaensis 121 Ma

News 1

New Microraptorine Dinosaur Discovered in China

China Cretaceous Early Cretaceous specimen Dinosauria +3

Jian changmaensis is the first non-avian dinosaur found at a paleontological site that has yielded more than 100 specimens of Early Cretaceous birds. The post New Microraptorine Dinosaur Discovered in China appeared first on Sci.News: Breaking Science News.

04/06/2026 sci-news

Images 7

Bibliography

Original description

L. Zhou, M. C. Lamanna, and A. W. Poust, D. Li, H. You, J. K. O.'Connor. 2026. First non-avian theropod (Dromaeosauridae, Microraptorinae) from the bird-bearing Lower Cretaceous Xiagou Formation of the Changma Basin, Gansu Province, northwestern China. Annals of Carnegie Museum 92(2):89-110 DOI ↗

Bibliography (1)

Jian

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