Xiangornis

Erinnya litegeeza: “free flight bird”1

Yalyanga: EnnyamaEbinyonyi eby'olubereberyeEntandikwa ya Kuretasi

Xiangornis was an ancient bird that lived about 120 million years ago. It had a mix of features from two big groups of early birds, making it a mysterious and special creature. Its wing bones were already fused together like in modern birds, which helped it fly strongly.1 2

Yabeerawo

emyaka obukadde 121 okutuuka ku 113 emabega4

Entandikwa ya Kuretasi

Ebisigalira byazuulibwa mu

Liaoning Province, China1 2

Sipiidi esinga

nga 27 km/h (17 mph)

Okubuuka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Xiangornis nga 27 km/h (17 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

Xiangornis belongs to a group called Enantiornithes, which were the most common birds during the Cretaceous period.3 1

Its wing bones (carpometacarpus) were completely fused together, both near the body and far from it, just like in modern birds.1 2

Xiangornis had a large extensor process on its wing, a bony bump that helped attach muscles and ligaments for strong flight.1 2

This bird shows that some features thought to belong only to modern birds actually evolved earlier and separately in enantiornithines.1 2

The name Xiangornis comes from Mandarin words meaning 'free flight' and the Greek word for bird.1 2

Xiangornis lived during the Aptian age, about 121 to 113 million years ago, in what is now Liaoning, China.3

Ekifaananyi kya Xiangornis ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Xiangornis
Yatuumibwa: Hu et al. 20124
Ekibinja: Ebinyonyi eby'olubereberye
Ekika / ekibinja: Enantiornithes4
Engabanya: Theropoda > Avialae4
Emyaka gy'enjazi: emyaka obukadde 121 okutuuka ku 113 (Aptian)4
Ensengeka z'enjazi: Jiufotang4
Ensi: Cayina4
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database4
Okuzuulibwa: Xiangornis was named by Hu and colleagues in 2012 based on a partial skeleton found in the Jiufotang Formation of Liaoning, China. The fossil includes wing and shoulder bones.3 1
Kikyakubaganyizibwako ebirowoozo: Scientists are still debating whether Xiangornis is truly an enantiornithine or if it blurs the line between enantiornithines and ornithuromorphs (the group that includes modern birds).1 2

Ebituufu gye biva

A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution (tandfonline.com)
A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution (ivpp.cas.cn)
PBDB Taxon (paleobiodb.org)
Xiangornis in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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