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Dino kad No. 1975 wɔ 2 027 mu

Yixianornis

Din no ase: “Yixian Formation bird”1

Ɔdii: NamNnomaa a wɔdii kanKretasias Mfiase

Yixianornis was a bird that lived 120 million years ago in what is now China. It was about the size of a chicken and had broad, rounded wings that helped it fly through dense forests. Its tail feathers could fan out like a modern bird's tail.1

Ɔtenaa ase

mfeɛ ɔpepem 121 kɔsi 113 a atwam2

Kretasias Mfiase

Wɔhunuu fɔsil wɔ

Qianyang, Yixian County, Liaoning Province, China1 2

Tenten

0.19 kɔsi 0.2 m (0.6 kɔsi 0.7 ft)1

Ntaban trɛmu

0.4 m (1.3 ft)1

Mu duru

0.2 kg kɔsi 0.35 kg (0 kɔsi 1 lb)1

Korɔn

0.115 m (0.4 ft)1

Ntɛmntɛm a ɛsen biara

bɛyɛ 25 km/h (16 mph)

Wimtuo, nsusuiɛ

Berɛ bɛn na ɛtenaa ase?

Triasik

Jurasik

Kretasias

mfeɛ ɔpepem 252 a atwam20114566, ɔsoro ɛboɔ no

Na ne kɛseɛ yɛ sɛn?

Na ne tenten yɛ sɛn?

Na ne korɔn yɛ sɛn?

Na ne mu yɛ duru sɛn?

ne mu duru te sɛ kwadu 3

ne mu yɛ hare sen fie agyinamoane tenten te sɛ agodeɛ blɔk 6 a ɛtoatoa soketewa ara ma ɔbɛtumi afa akonnwa aseanka ɔbɛtumi atu atwa bɔɔlobɔ prama mũ wɔ sikɛn 15 mu

Yixianornis kɛseɛ yɛ sɛn sɛ wode toto WO ho a?

Akontaa nko ara wɔ wo browser mu. Yɛnkora biribiara so, na yɛmmfa biribiara nkɔ baabiara.

Na ɛyɛ ntɛm sɛn?

Onipa a ɔnante bɛyɛ 5 km/h (3 mph)

Abofra a ɔte sakre so bɛyɛ 12 km/h (7 mph)

Yixianornis bɛyɛ 25 km/h (16 mph)

Ɔpɔnkɔ a ɔretu mmirika bɛyɛ 65 km/h (40 mph)

Kyiita bɛyɛ 100 km/h (62 mph)

nneɛma a ɛyɛ fɛ

Nsɛm a ɛyɛ anigye

Yixianornis is one of the best-preserved bird fossils from the Jehol group, with bones that are mostly uncrushed and clear impressions of wing and tail feathers.1

Its tail feathers were arranged in a graduated series, with the outer feathers anchored closer to the base of the tail, giving it a rounded silhouette.1

Yixianornis had a rectrical bulb, a muscle that allows tail feathers to be fanned out during flight and retracted when at rest, just like in modern birds.1

The tips of its jaws were toothless and had small pits and grooves, possibly indicating the presence of a beak.1

Its flight feathers were very broad and rounded, not narrow and pointed like in many other early birds.1

Scientists think Yixianornis was diurnal, meaning it was active during the day, similar to most modern birds.1

Yixianornis is the most primitive bird known to have an essentially modern pygostyle and fan of tail feathers.1

Yei yɛ Yixianornis mfonini a AI yɛeɛ, sɛdeɛ ebia na ɔteɛ. Kɔmputa na ɛyɛeɛ firi deɛ nyansahufoɔ nim mu. Ɛyɛ nsusuiɛ: ebia na aboa ankasa no nte saa, na obiara nnim ne kɔla ankasa.

Ma dino ho animdefoɔ

Nyansahu din: Yixianornis
Obi a ɔtoo din: Zhou and Zhang 20012
Kuo: Nnomaa a wɔdii kan
Abusua / kuo kɛseɛ: Hongshanornithidae2
Nkyekyɛmu: Theropoda > Avialae2
Abotan no mfeɛ: mfeɛ ɔpepem 121 kɔsi 113 (Aptian)2
Abotan nhyehyɛeɛ: Jiufotang2
Aman: Kyaena2
Fɔsil nkyerɛwee: 1 wɔ The Paleobiology Database mu2
Nhunumu: Yixianornis was named by Zhou Zhonghe and Zhang Fucheng in 2001 based on a nearly complete fossil with feather impressions found in the Jiufotang Formation of Liaoning, China.1 2
Wɔda so gye ho akyinnye: Scientists are still debating whether Yixianornis had a beak at the tips of its jaws, because the pits and grooves could also be from other features.1

Baabi a nsɛm no firi

Yixianornis (en.wikipedia.org)
Yixianornis in The Paleobiology Database (CC BY 4.0): mfeɛ, mmeaeɛ, abotan nhyehyɛeɛ, nkyekyɛmu.

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