Xiangornis

Izenaren esanahia: “free flight bird”1

Jaten zuen: HaragiaLehen hegaztiakBehe Kretazeoa

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

Bizi izan zen

Duela 121 eta 113 milioi urte artean4

Behe Kretazeoa

Fosilak hemen aurkitu dira:

Liaoning Province, China1 2

Abiadura maximoa

27 km/h inguru (17 mph)

Hegan egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein azkarra zen?

Pertsona bat oinez 5 km/h inguru (3 mph)

Haur bat bizikletan 12 km/h inguru (7 mph)

Xiangornis 27 km/h inguru (17 mph)

Zaldi bat lauhazka 65 km/h inguru (40 mph)

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

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

Xiangornis: AAk egindako irudia — Xiangornis nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.

Dino adituentzat

Izen zientifikoa: Xiangornis
Izendatzailea:: Hu et al. 20124
Taldea: Lehen hegaztiak
Familia / klada: Enantiornithes4
Sailkapena: Theropoda > Avialae4
Arroken adina: 121 eta 113 milioi urte artean (Aptian)4
Arroka-formazioak: Jiufotang4
Herrialdeak: Txina4
Fosil-erregistroak: 1 The Paleobiology Database datu-basean4
Aurkikuntza: 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
Oraindik eztabaidagai: 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

Datuak nondik datozen

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): adina, tokiak, arroka-formazioak, sailkapena.

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