Kartu dino No. 1165 ci 2 027

Mengciusornis

Tur bi mooy: “Mencius bird”1

Lekkoon: YàppPicc yu jëkk yiKretase bu jëkk

Mengciusornis was an early bird that lived in China during the time of the dinosaurs. It had sharp, curved teeth in its upper beak, but the rest of its mouth was toothless. This little creature could fly and probably hunted for insects and small animals.1 2

Dundoon

am na 121 ba 113 milyoŋ at3

Kretase bu jëkk

Fosil yu ñu gis ci

Lamadong, Jianchang, Liaoning Province, China (Jiufotang Formation)3 1

Gaawaay bi gën a kawe

lu tollu ci 27 km/h (17 mph)

Naaw, jortu

Kañ la dundoon?

Triyaas

Jurasik

Kretase

Am na 252 milyoŋ at20114566, asteroyid bi

Naka la gaawoon?

Nit kuy dox lu tollu ci 5 km/h (3 mph)

Xale bu nekk ci welo lu tollu ci 12 km/h (7 mph)

Mengciusornis lu tollu ci 27 km/h (17 mph)

Fas buy daw bu gaaw lu tollu ci 65 km/h (40 mph)

Segg bu gaaw lu tollu ci 100 km/h (62 mph)

yëf yu neex

Xibaar yu neex

Mengciusornis had teeth only in the front part of its upper jaw, called the premaxilla. Its close relative Schizooura had no teeth at all.1 2

The only known fossil of Mengciusornis is a well-preserved skeleton that even shows remains of feathers.1

Mengciusornis lived about 121 to 113 million years ago, during the Early Cretaceous period.3

Its name honors the ancient Chinese philosopher Mencius, and 'dentatus' means 'toothed' in Latin.1

Mengciusornis had a V-shaped wishbone (furcula) and a large, rectangular crest on its upper arm bone.2

Scientists think tooth loss in early birds happened in different ways in different groups. Mengciusornis shows a unique pattern where the front of the upper jaw kept teeth while the rest of the mouth lost them.2

Nataalu Mengciusornis bu ñu def ak IA — Nataal bu IA def la, muy wone ni Mengciusornis mën a meloon, ordinatëer moo ko def ci li boroom xam-xam yi xam. Jortu kese la: rab bi ci dëgg mën na meloon neneen, te kenn xamul ay kulëëram yu dëgg.

Ngir ñi xam dino lool

Turu xam-xam: Mengciusornis
Ku ko tudde: Wang et al. 20203
Kurél: Picc yu jëkk yi
Njaboot / klad: Schizoouridae3
Klasifikasiyoŋ: Theropoda > Avialae3
Màggaayu doj yi: 121 ba 113 milyoŋ at (Aptian)3
Formasiyoŋi doj: Jiufotang3
Réew yi: Siin3
Fosil yu ñu gis: 1 ci The Paleobiology Database3
Gisees: Mengciusornis was named in 2019 by Wang and colleagues based on a single fossil skeleton (IVPP V26275) from the Jiufotang Formation in China.1 3
Ñu ngi koy werante ba tey: Scientists are still debating exactly how Mengciusornis is related to other early birds and how tooth loss evolved in its lineage.2

Fa xibaar yi jóge

Mengciusornis (en.wikipedia.org)
New toothed Early Cretaceous ornithuromorph bird reveals intraclade diversity in pattern of tooth loss: Journal of Systematic Palaeontology: Vol 18 , No 8 - Get Access (tandfonline.com)
Mengciusornis in The Paleobiology Database (CC BY 4.0): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.

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