Grabauornis

Izina risobanura: “Grabau's bird”1

Yaryaga: InyamaInyoni za mbereKiretase ya mbere

Grabauornis was a small, toothed bird that lived about 125 million years ago in what is now China. It was a good flyer and had a special thumb feather called an alula that helped it steer in the air.1 2

Yabayeho

hashize imyaka miliyoni 126 kugeza 1204

Kiretase ya mbere

Ibisigazwa byabonetse muri

Liaoning Province, China1 3

Uburebure

0,1 kugeza 0,3 m (0,3 kugeza 1 ft)3

Umuvuduko wo hejuru

nka 27 km/h (17 mph)

Kuguruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

ndende nk'ibikinisho 9 byo kubaka bikurikiranyeyashoboraga kuguruka ikambuka ikibuga cyose cy'umupira w'amaguru mu masegonda 14

Grabauornis 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)

Grabauornis 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

Grabauornis belongs to a group of early birds called enantiornitheans, which were the most common birds during the Age of Dinosaurs.1

Its humerus (upper arm bone) was 95% the length of its ulna (forearm bone), which is about average for enantiornitheans and shows it was a capable flyer.1 2

The fossil of Grabauornis was found in the Yixian Formation, a famous rock layer that has preserved many amazing feathered dinosaurs and early birds.1 3

Grabauornis had an alula, a small feather on its thumb that helped it fly slowly and land precisely, like the flaps on an airplane wing.1 2

The name Grabauornis honors Amadeus William Grabau, a famous geologist and paleontologist who worked in China.1

Its wishbone had a well-developed hypocleidium, a part that helped strengthen its chest for powerful wing beats.1

Ishusho ya Grabauornis yakozwe na AI — Ishusho yakozwe na AI yerekana uko Grabauornis 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: Grabauornis
Yiswe na: Dalsatt et al. 20144
Itsinda: Inyoni za mbere
Umuryango / ishami: Euenantiornithes4
Ishyirwa mu byiciro: Theropoda > Avialae4
Imyaka y'amabuye: imyaka miliyoni 126 kugeza 120 (Barremian / Aptian)4
Inzego z'amabuye: Yixian4
Ibihugu: Ubushinwa4
Ibisigazwa byanditswe: 1 muri The Paleobiology Database4
Ivumburwa: Grabauornis was named and described in 2014 by scientists Johan Dalsätt, Per Ericson, and Zhou Zhonghe. The fossil was found near the city of Lingyuan in Liaoning, China.1 2
Biracyagibwaho impaka: Scientists are still debating exactly how Grabauornis is related to other enantiornithean birds, since its skeleton shows a unique mix of features.1

Aho amakuru yakuwe

Grabauornis (en.wikipedia.org)
A New Enantiornithes (Aves) from the Early Cretaceous of China (geojournals.cn)
PBDB Taxon (paleobiodb.org)
Grabauornis in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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