Cruralispennia

Izina risobanura: “leg feather”1

Yaryaga: InyamaInyoni za mbereKiretase ya mbere

Cruralispennia was a tiny, feathered bird that lived about 131 million years ago in what is now China. It had strange, wiry feathers on its legs that no other bird had before or since!1

Yabayeho

hashize imyaka miliyoni 133 kugeza 1264

Kiretase ya mbere

Ibisigazwa byabonetse muri

Sichakou Basin, Fengning County, Hebei Province, northeastern China1

Umuvuduko wo hejuru

nka 27 km/h (17 mph)

Kuguruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Cruralispennia nka 27 km/h (17 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

Cruralispennia had a plough-shaped pygostyle, a fused tail bone that was thought to only exist in more advanced birds. This shows that different bird groups evolved similar features separately.1

Its leg feathers were unlike any seen before: the base was like a stiff wire, and the tip was fluffy and split into many tiny strands.1

Even though Cruralispennia lived very early in bird history, its shoulder bone (coracoid) was already very slender, a shape usually found in later Cretaceous birds.1

The name Cruralispennia means 'leg feather' in Latin, because of the unusual feathers on its shin bone (tibiotarsus).1

This bird had 14 teeth in its lower jaw, which is why its full species name is multidonta, meaning 'many teeth'.1

Cruralispennia lived alongside other early birds like Protopteryx and Eoconfuciusornis in the same ancient lake environment.1

Ishusho ya Cruralispennia yakozwe na AI — Ishusho yakozwe na AI yerekana uko Cruralispennia ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri Cruralispennia

?How big was Cruralispennia?

Cruralispennia was a tiny bird, about the size of a modern sparrow. Its leg feathers were only 12 to 16 mm long.2 3

?Where did Cruralispennia live?

It lived in what is now China, around a lake in the Sichakou Basin about 131 million years ago.2

?What did Cruralispennia eat?

Scientists think Cruralispennia likely ate insects or small prey, because it had sharp, curved claws and many teeth in its lower jaw.2 3

Ku bazobereye muri dinozore

Izina rya siyansi: Cruralispennia
Yiswe na: Wang et al. 20174
Itsinda: Inyoni za mbere
Umuryango / ishami: Enantiornithes4
Ishyirwa mu byiciro: Theropoda > Avialae4
Imyaka y'amabuye: imyaka miliyoni 133 kugeza 126 (Hauterivian)4
Inzego z'amabuye: Huajiying4
Ibihugu: Ubushinwa4
Ibisigazwa byanditswe: 1 muri The Paleobiology Database4
Ivumburwa: Cruralispennia was named in 2017 by Min Wang and colleagues from a nearly complete skeleton found in the Huajiying Formation of China.4 1
Biracyagibwaho impaka: Scientists are not sure what the strange leg feathers were used for. They might have helped with display, insulation, or even sensing the environment.1

Aho amakuru yakuwe

npg.nature.com (npg.nature.com)
Cruralispennia (en.wikipedia.org)
A bizarre Early Cretaceous enantiornithine bird with unique crural feathers and an ornithuromorph plough-shaped pygostyle | Nature Communications (nature.com)
Cruralispennia in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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