Yuanjiawaornis

Igama lithetha: “bird from Yuanjiawa”1

Yayitya: InyamaIintaka zokuqalaiCretaceous yokuqala

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

Yaphila

121 ukuya ku-113 izigidi zeminyaka eyadlulayo4

iCretaceous yokuqala

Iifosili zifunyenwe:

Liaoning Province, China1 2

Ububanzi bamaphiko

0.5 m (1.6 ft)1

Esona santya siphezulu

malunga ne-27 km/h (17 mph)

Ukubhabha, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Amaphiko ayo ayebanzi kangakanani?

ibinokubhabha inqumle ibala lebhola ekhatywayo lonke ngemizuzwana engama-14

Yuanjiawaornis wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

Umntu ohambayo malunga ne-5 km/h (3 mph)

Umntwana ekhwele ibhayisikile malunga ne-12 km/h (7 mph)

Yuanjiawaornis malunga ne-27 km/h (17 mph)

Ihashe elibaleka ngamandla malunga ne-65 km/h (40 mph)

Ingwenkala malunga ne-100 km/h (62 mph)

izinto ezimnandi

Iinyani ezimnandi

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

Umfanekiso owenziwe yi-AI: Yuanjiawaornis — Umfanekiso owenziwe yi-AI obonisa indlela Yuanjiawaornis esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

Kwiingcali zeedayinaso

Igama lenzululwazi: Yuanjiawaornis
Inikwe igama ngu:: Hu et al. 20154
Iqela: Iintaka zokuqala
Usapho / iclade: Enantiornithes4
Ukuhlelwa: Theropoda > Avialae4
Ubudala bamatye: 121 ukuya ku-113 izigidi zeminyaka (Aptian)4
Izakhiwo zamatye: Jiufotang4
Amazwe: iTshayina4
Iirekhodi zeefosili: 1 kwi-Paleobiology Database4
Ukufunyanwa: 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
Kusaxoxwa ngayo: Scientists are not sure exactly how Yuanjiawaornis is related to other enantiornithine birds, because its skull is missing.1

Apho iinyani zivela khona

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): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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