Yuanjiawaornis

Izina risobanura: “bird from Yuanjiawa”1

Yaryaga: InyamaInyoni za mbereKiretase ya mbere

Yuanjiawaornis was a big, powerful bird that lived about 120 million years ago in what is now China. It was one of the largest birds of its time, with a wingspan nearly half a metre wide. It probably hunted small animals for food.1 2

Yabayeho

hashize imyaka miliyoni 121 kugeza 1134

Kiretase ya mbere

Ibisigazwa byabonetse muri

Liaoning Province, China1 2

Ubugari bw'amababa

0,5 m (1,6 ft)1

Umuvuduko wo hejuru

nka 27 km/h (17 mph)

Kuguruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Amababa yayo yari arambuye angana iki?

yashoboraga kuguruka ikambuka ikibuga cyose cy'umupira w'amaguru mu masegonda 14

Yuanjiawaornis yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Yuanjiawaornis nka 27 km/h (17 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

Yuanjiawaornis is known from a nearly complete skeleton without a skull, found in 2005 by a paleontologist near the village of Yuanjiawa.1

Most enantiornithine birds were as small as sparrows or starlings, but Yuanjiawaornis was much larger, about the size of Zhouornis.1 2

The fossil of Yuanjiawaornis has no preserved feathers, which is unusual for bird fossils from Liaoning.1

Yuanjiawaornis lived during the Early Cretaceous period, about 120 million years ago, in the Jiufotang Formation.1 3

The holotype specimen was probably a young adult, because its wrist bones were not fully fused.2

Yuanjiawaornis had a uniquely shaped synsacrum (a fused part of the backbone) that may be special to enantiornithine birds.2

Ishusho ya Yuanjiawaornis yakozwe na AI — Ishusho yakozwe na AI yerekana uko Yuanjiawaornis ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

Ku bazobereye muri dinozore

Izina rya siyansi: Yuanjiawaornis
Yiswe na: Hu et al. 20154
Itsinda: Inyoni za mbere
Umuryango / ishami: Enantiornithes4
Ishyirwa mu byiciro: Theropoda > Avialae4
Imyaka y'amabuye: imyaka miliyoni 121 kugeza 113 (Aptian)4
Inzego z'amabuye: Jiufotang4
Ibihugu: Ubushinwa4
Ibisigazwa byanditswe: 1 muri The Paleobiology Database4
Ivumburwa: Yuanjiawaornis was named in 2015 by Hu Dongyu and colleagues based on a skeleton found in 2005 near Yuanjiawa village in Liaoning, China.1 2
Biracyagibwaho impaka: Scientists are not sure exactly how Yuanjiawaornis is related to other enantiornithine birds, because its skull is missing.1

Aho amakuru yakuwe

Yuanjiawaornis (en.wikipedia.org)
Yuanjiawaornis viriosus , gen. et sp. nov., a large enantiornithine bird from the Lower Cretaceous of western Liaoning, China (sciencedirect.com)
PBDB Taxon (paleobiodb.org)
Yuanjiawaornis in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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