Sinornis

Hiika maqaa: “Chinese bird”1

Kan nyaate: FoonSimbirroota jalqabaaKireetaashasii Jalqabaa

Sinornis was a tiny bird that lived about 120 million years ago in what is now China. It was about the size of a sparrow and could fly and perch just like modern birds. Its fossils helped scientists understand how birds evolved from dinosaurs.2 1

Kan jiraate

waggaa miliyoona 121 hanga 113 dura3

Kireetaashasii Jalqabaa

Fosiliiwwan kan itti argaman

Liaoning Province, China (Jiufotang Formation)1 3

Saffisa ol'aanaa

gara 27 km/sa'a (17 mph)

Balali'uu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Sinornis gara 27 km/sa'a (17 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Sinornis had a special wrist bone with a groove that let it bend its wrist sharply, tucking its wings tightly during flight or rest.1

Unlike modern birds, Sinornis had separate finger bones with small claws on its first and second digits.1

Sinornis had a fully opposable hallux (back toe) with a large claw, which helped it perch on branches.1

Its breastbone and shoulder structures were built for strong flight muscles, similar to birds today.1

Sinornis still had some primitive features like a flexible hand, a footed pubis, and stomach ribs (gastralia), which it shared with the early bird Archaeopteryx.2 1

The fossil of Sinornis was discovered by a Chinese farmer before 1992, and scientists Paul Sereno and Rao Chenggang named and described it.1

Fakkii AI'n hojjetame: Sinornis — Fakkii AI'n hojjetame kan Sinornis maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

ati gaafatte

Gaaffiiwwan waa'ee Sinornis baay'ee gaafataman

?How big was Sinornis?

About the size of a sparrow. Its skeleton was sparrow-sized, so it was a very small bird.1 2

?Could Sinornis fly?

Yes. It had a broad sternum and shoulder structures for strong flight muscles, and a special wrist bone that let it tuck its wings, so it could fly like modern birds.1

?Did Sinornis have teeth?

Yes. Its skull had a short, toothed snout, similar to the early bird Archaeopteryx.1

?When did Sinornis live?

It lived about 120 million years ago, during the Early Cretaceous period.1

Ogeeyyii daayinootiif

Maqaa saayinsii: Sinornis
Kan maqaa baase: Sereno and Rao 19923
Garee: Simbirroota jalqabaa
Maatii / kilaadii: Enantiornithes3
Ramaddii: Theropoda > Avialae3
Umurii dhagaawwanii: waggaa miliyoona 121 hanga 113 (Aptian)3
Caasaawwan dhagaa: Jiufotang3
Biyyoota: Chaayinaa3
Galmee fosilii: 1 The Paleobiology Database keessa3
Argannoo: Sinornis was named by Paul Sereno and Rao Chenggang in 1992. The fossil was found in the Jiufotang Formation in Liaoning, China, and was originally thought to be 135 million years old, but later research showed it is about 120 million years old.1 2
Ammallee falmisiisaa: Scientists still debate whether another bird from the same area, Cathayornis, is actually the same species as Sinornis or a different one.1

Odeeffannoon eessaa dhufa

Sinornis (en.wikipedia.org)
Early Evolution of Avian Flight and Perching: New Evidence from the Lower Cretaceous of China | Science (science.org)
Sinornis in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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