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Cretornis

Izina risobanura: “chalk bird”1

Yaryaga: IfiIbikururanda bigurukaKiretase ya nyumaMu by'ukuri si dinozore

Cretornis was a flying reptile that lived about 92 million years ago. It had a wingspan as wide as a bicycle is long and probably ate fish. Its fossils were found in the Czech Republic.1 3

Akantu gashimishije: pterozore zagurukaga hejuru ya dinozore, ariko zari babyara bazo, si dinozore ubwazo.

Yabayeho

hashize imyaka miliyoni 94 kugeza 903

Kiretase ya nyuma

Ibisigazwa byabonetse muri

Zářecká Lhota near Choceň, Czech Republic3 1

Ubugari bw'amababa

1,5 kugeza 1,6 m (4,9 kugeza 5,2 ft)1 2

Umuvuduko wo hejuru

nka 43 km/h (27 mph)

Kuguruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Amababa yayo yari arambuye angana iki?

ndende nk'injangwe 3 zo mu rugo zikurikiranyeyashoboraga kuguruka ikambuka ikibuga cyose cy'umupira w'amaguru mu masegonda 8,8

Cretornis yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

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

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

Cretornis nka 43 km/h (27 mph)

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

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

utuntu twiza cyane

Utuntu dushimishije

Cretornis was first thought to be a bird, not a pterosaur. The scientist who named it, Antonín Frič, called it a 'chalk bird' because he thought it was a toothed bird like Ichthyornis.1

The fossils were found by a woman named Mrs. Tomková, who worked at a gambling table in Choceň. She told a local pharmacist, František Hlaváč, about the bones, and he collected them.1

Cretornis is the only pterosaur ever found in the Czech Republic. Its bones come from a sandstone quarry that was being used to get gravel for road repairs.1 2

The upper arm bone (humerus) of Cretornis is only 76 millimeters long, which is about the length of three fingers side by side.1

Scientists are not sure exactly what group of pterosaurs Cretornis belongs to. Some think it is an azhdarchoid, others think it is a nyctosaurid.1 2

Ishusho ya Cretornis yakozwe na AI — Ishusho yakozwe na AI yerekana uko Cretornis 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 Cretornis

?How big was Cretornis?

Its wingspan was about 1.5 to 1.6 metres (4.9 to 5.2 feet), which is as wide as a bicycle. Its upper arm bone was only 76 millimetres (3 inches) long.1 2

?What did Cretornis eat?

It probably ate fish, like many other pterosaurs that lived near the sea.1

?Is Cretornis a dinosaur?

No, Cretornis is a pterosaur, a flying reptile that lived during the time of dinosaurs, but it is not a dinosaur itself.1

Ku bazobereye muri dinozore

Izina rya siyansi: Cretornis
Yiswe na: Fritsch 18813
Itsinda: Ibikururanda biguruka
Umuryango / ishami: Azhdarchoidea3
Ishyirwa mu byiciro: Pterosauria > Pterodactyloidea3
Imyaka y'amabuye: imyaka miliyoni 94 kugeza 90 (Turonian)3
Inzego z'amabuye: Jizera3
Ibihugu: Cekiya3
Ibisigazwa byanditswe: 1 muri The Paleobiology Database3
Ivumburwa: Cretornis was named in 1881 by Czech paleontologist Antonín Frič. He first thought the bones were from a bird, but later scientists realized it was a pterosaur.1 3
Biracyagibwaho impaka: Scientists still debate whether Cretornis was an azhdarchoid pterosaur or a nyctosaurid. Its exact place in the pterosaur family tree is not settled.1 2

Aho amakuru yakuwe

Cretornis (en.wikipedia.org)
Cretornis hlavaci Frič, 1881 from the Upper Cretaceous of Czech Republic (Pterosauria, Azhdarchoidea) - ScienceDirect (sciencedirect.com)
Cretornis in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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