Grabauornis

Leina le raya: “Grabau's bird”1

E jele: NamaDinonyane tsa ntlhaTshimologo ya Cretaceous

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

E tshetse

dimilione tsa dingwaga di le 126 go ya go 120 tse di fetileng4

Tshimologo ya Cretaceous

Difosili di fitlhetswe kwa

Liaoning Province, China1 3

Boleele

0.1 go ya go 0.3 m (0.3 go ya go 1 ft)3

Bonako jo bogolo

e ka nna 27 km/h (17 mph)

Go fofa, kakanyo

E tshetse leng?

Triassic

Jurassic

Cretaceous

dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le kgolo go le kae?

E ne e le telele go le kae?

telele jaaka ditena tsa go tshameka di le 9 mo molenge ne e ka fofa go kgabaganya lebala lotlhe la kgwele ya dinao mo metsotswaneng e le 14

Grabauornis e ne e le kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sebatling sa gago. Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E ne e le bonako go le kae?

Motho yo o tsamayang e ka nna 5 km/h (3 mph)

Ngwana mo baesekeleng e ka nna 12 km/h (7 mph)

Grabauornis e ka nna 27 km/h (17 mph)

Pitse e e sianang ka bonako e ka nna 65 km/h (40 mph)

Lengau e ka nna 100 km/h (62 mph)

dilo tse di monate

Dintlha tse di monate

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

Setshwantsho sa Grabauornis se se dirilweng ke AI — Setshwantsho se se dirilweng ke AI sa kafa Grabauornis e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.

Ya baitseanape ba didino

Leina la saense: Grabauornis
Leina le neilwe ke: Dalsatt et al. 20144
Setlhopha: Dinonyane tsa ntlha
Lelapa / clade: Euenantiornithes4
Thulaganyo: Theropoda > Avialae4
Bogolo jwa matlapa: 126 go ya go 120 dimilione tsa dingwaga (Barremian / Aptian)4
Dibopego tsa matlapa: Yixian4
Dinaga: Tšhaena4
Direkoto tsa difosili: 1 mo The Paleobiology Database4
Go fitlhelwa: 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
Go sa ntse go ganetsanwa: Scientists are still debating exactly how Grabauornis is related to other enantiornithean birds, since its skeleton shows a unique mix of features.1

Kwa dintlha di tswang teng

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): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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