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Umfanekiso wekhathuni: Zhongjianornis
Ikhadi ledayinaso No. 2014 kwe-2 027

Zhongjianornis

Igama lithetha: “Zhongjian's bird, named after the founder of the Institute of Vertebrate Paleontology and Paleoanthropology, Yang Zhongjian”1
Yayitya: InyamaIintaka zokuqalaiCretaceous yokuqala

Zhongjianornis was a pigeon-sized bird that lived in China during the Early Cretaceous, about 120 million years ago. It had a toothless beak and strong wing muscles, making it a good flier. This little bird helps scientists understand how early birds evolved and lost their teeth.12

Yaphila
121 ukuya ku-113 izigidi zeminyaka eyadlulayo4
iCretaceous yokuqala
Iifosili zifunyenwe:
Jianchang, Liaoning Province, China (Jiufotang Formation)13
Ubude
0.2 ukuya ku-0.3 m (0.7 ukuya ku-1 ft)13
Ubunzima
0.3 kg ukuya ku-0.5 kg (1 ukuya ku-1 lb)1
Ukuphakama
0.14 m (0.5 ft)
uqikelelo
Esona santya siphezulu
malunga ne-28 km/h (17 mph)
Ukubhabha, uqikelelo

Yaphila nini?

iTriassic
iJurassic
iCretaceous
Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Zhongjianornis malunga ne-0.3 m ubude (1 ft)Ikati yasekhaya malunga ne-0.5 m (1.6 ft)Inja malunga ne-1 m (3.3 ft)Ibhayisikile yomntu omdala malunga ne-1.8 m (5.9 ft)

Yayiphakame kangakanani?

Zhongjianornismalunga ne-0.14 m ukuphakama (0.5 ft)Ikati yasekhayamalunga ne-0.3 m (1 ft)Injamalunga ne-0.5 m (1.6 ft)Ihashemalunga ne-1.6 m (5.2 ft)

uqikelelo

Yayinzima kangakanani?

inzima njengeebhanana ezingama-4
ilula kunekati yasekhayainzima njengeebhanana ezingama-4inde njengezitena zokudlala ezingama-9 zilandelelanaincinci ngokwaneleyo ukuba ihambe phantsi kwesituloibinokubhabha inqumle ibala lebhola ekhatywayo lonke ngemizuzwana engama-14

Zhongjianornis wayemkhulu kangakanani xa ethelekiswa NAWE?

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

Yayikhawuleza kangakanani?

izinto ezimnandi

Iinyani ezimnandi

1

Zhongjianornis is one of the most primitive birds known to have completely lost its teeth, developing a beak instead.2

2

Its humerus had a large, robust deltopectoral crest, which was as wide as the bone shaft and more than one-third the total length of the humerus, indicating strong flight muscles.3

3

The only known fossil of Zhongjianornis is a nearly complete skeleton with some poorly preserved feather imprints.3

4

Zhongjianornis lived during the Aptian age of the Early Cretaceous, about 121 to 113 million years ago.3

5

Scientists initially thought Zhongjianornis was very primitive, but later research in 2012 suggested it was more similar to advanced euornithean birds like Chaoyangia.1

6

The species name yangi honors Yang Zhongjian, the founder of the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing.1

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

Eyona mibuzo ibuzwa kakhulu: Zhongjianornis

?How big was Zhongjianornis?

About the size of a pigeon. It was a small bird.1

?Did Zhongjianornis have teeth?

No, it had a toothless beak. It is one of the most primitive birds known to have completely lost its teeth.12

?What did Zhongjianornis eat?

Scientists are not sure, but its toothless beak suggests it may have eaten seeds or small insects.1

Inyaniso ngeentsomi

Intsomi: Zhongjianornis was the most primitive toothless bird.

Inyaniso: While initially thought to be very primitive, later analysis in 2012 showed that Zhongjianornis is more closely related to advanced euornithean birds, not the most primitive.1

Kwiingcali zeedayinaso

Igama lenzululwazi
Zhongjianornis
Inikwe igama ngu:
Zhou et al. 20104
Iqela
Iintaka zokuqala
Usapho / iclade
Ornithuromorpha4
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
Zhongjianornis was named and described by Zhou, Zhang, and Li in a paper published in January 2010 (though it appeared online in 2009). The only fossil, a nearly complete skeleton, was found at Jianchang in Liaoning Province, China.12
Kusaxoxwa ngayo
Scientists still debate whether Zhongjianornis was a very primitive bird or a more advanced euornithean, due to conflicting interpretations of its fossil's anatomy.1

Apho iinyani zivela khona

  1. Zhongjianornis (en.wikipedia.org)
  2. A new Lower Cretaceous bird from China and tooth reduction in early avian evolution (royalsocietypublishing.org)
  3. PBDB Taxon (paleobiodb.org)
  4. Zhongjianornis in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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