Cruralispennia

Dzina limatanthauza: “leg feather”1

Ankadya: NyamaMbalame zoyambiriraKumayambiriro kwa Kretase

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

Ankakhala

zaka 133 mpaka 126 miliyoni zapitazo4

Kumayambiriro kwa Kretase

Mafosili apezeka ku

Sichakou Basin, Fengning County, Hebei Province, northeastern China1

Liwiro lalikulu kwambiri

pafupifupi 27 km/h (17 mph)

Kuuluka, kuyerekeza

Ankakhala liti?

Triasiki

Jurasiki

Kretase

Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali ndi liwiro lotani?

Munthu akuyenda pafupifupi 5 km/h (3 mph)

Mwana pa njinga pafupifupi 12 km/h (7 mph)

Cruralispennia pafupifupi 27 km/h (17 mph)

Hatchi ikuthamanga pafupifupi 65 km/h (40 mph)

Kakwiyo pafupifupi 100 km/h (62 mph)

zinthu zosangalatsa

Mfundo zosangalatsa

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

Chithunzi cha Cruralispennia chopangidwa ndi AI — Chithunzi cha momwe Cruralispennia mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.

mwafunsa

Mafunso ofunsidwa kwambiri okhudza 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

Kwa akatswiri a madino

Dzina la sayansi: Cruralispennia
Anapatsidwa dzina ndi: Wang et al. 20174
Gulu: Mbalame zoyambirira
Banja / kladi: Enantiornithes4
Magawidwe a sayansi: Theropoda > Avialae4
Zaka za miyala: zaka 133 mpaka 126 miliyoni (Hauterivian)4
Mapangidwe a miyala: Huajiying4
Mayiko: China4
Zolemba za mafosili: 1 mu The Paleobiology Database4
Kupezeka: Cruralispennia was named in 2017 by Min Wang and colleagues from a nearly complete skeleton found in the Huajiying Formation of China.4 1
Akukambiranabe: 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

Kumene mfundo zimachokera

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): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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