Sinornis

Il num vul dir: “Chinese bird”1

Mangiava: CharnUtschels primitivsCretacic tempriv

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

Viveva

avant 121 fin 113 milliuns onns3

Cretacic tempriv

Fossils chattads en

Liaoning Province, China (Jiufotang Formation)1 3

Spertadad maximala

var 27 km/h (17 mph)

Sgular, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Sinornis var 27 km/h (17 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Sinornis fatg cun IA — In maletg fatg cun IA che mussa co Sinornis pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart Sinornis

?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

Per experts da dinos

Num scientific: Sinornis
Numnà da: Sereno and Rao 19923
Gruppa: Utschels primitivs
Famiglia / clada: Enantiornithes3
Classificaziun: Theropoda > Avialae3
Vegliadetgna da la crappa: 121 fin 113 milliuns onns (Aptian)3
Formaziuns da crap: Jiufotang3
Pajais: China3
Chats da fossils: 1 en The Paleobiology Database3
Scuverta: 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
Anc discutà: Scientists still debate whether another bird from the same area, Cathayornis, is actually the same species as Sinornis or a different one.1

Danunder che vegnan ils fatgs

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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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