Grabauornis

Igama lithetha: “Grabau's bird”1

Yayitya: InyamaIintaka zokuqalaiCretaceous yokuqala

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

Yaphila

126 ukuya ku-120 izigidi zeminyaka eyadlulayo4

iCretaceous yokuqala

Iifosili zifunyenwe:

Liaoning Province, China1 3

Ubude

0.1 ukuya ku-0.3 m (0.3 ukuya ku-1 ft)3

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?

Yayinde kangakanani?

inde njengezitena zokudlala ezingama-9 zilandelelanaibinokubhabha inqumle ibala lebhola ekhatywayo lonke ngemizuzwana engama-14

Grabauornis 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)

Grabauornis 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

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

Umfanekiso owenziwe yi-AI: Grabauornis — Umfanekiso owenziwe yi-AI obonisa indlela Grabauornis 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: Grabauornis
Inikwe igama ngu:: Dalsatt et al. 20144
Iqela: Iintaka zokuqala
Usapho / iclade: Euenantiornithes4
Ukuhlelwa: Theropoda > Avialae4
Ubudala bamatye: 126 ukuya ku-120 izigidi zeminyaka (Barremian / Aptian)4
Izakhiwo zamatye: Yixian4
Amazwe: iTshayina4
Iirekhodi zeefosili: 1 kwi-Paleobiology Database4
Ukufunyanwa: 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
Kusaxoxwa ngayo: Scientists are still debating exactly how Grabauornis is related to other enantiornithean birds, since its skeleton shows a unique mix of features.1

Apho iinyani zivela khona

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): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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