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Hesperornis

Izina risobanura: “western bird”1

Yaryaga: IfiInyoni za mbereKiretase ya nyuma

Hesperornis was a giant swimming bird that lived in the time of dinosaurs. It had teeth in its beak and could not fly, but it was a super diver in the ancient seas.1 2

Yabayeho

hashize imyaka miliyoni 90 kugeza 665

Kiretase ya nyuma

Ibisigazwa byabonetse muri

North America (Kansas, Montana, South Dakota, Alaska, Canada), Russia, and Sweden5 1

Uburebure

1,5 kugeza 1,8 m (4,9 kugeza 5,9 ft)1

Uburemere

10,6 kg (23 lb)1

Ubutumburuke

0,81 m (2,7 ft)

igereranya

Umuvuduko wo hejuru

nka 16 km/h (10 mph)

Koga, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

igereranya

Yari iremereye ite?

iremereye nk'injangwe 2,5 zo mu rugo

ndende nk'injangwe 4 zo mu rugo zikurikiranyendende nk'imineke 10 ikurikiranyeiremereye nk'imineke 88yashoboraga koga uburebure bwa pisine nini (50 m) mu masegonda 11

Hesperornis 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)

Hesperornis nka 16 km/h (10 mph)

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

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

utuntu twiza cyane

Utuntu dushimishije

Hesperornis was one of the first birds to give up flying and become a full-time swimmer.2

Its legs were placed far back on its body, like a loon, making it clumsy on land but a powerful diver.1

Hesperornis had teeth in its beak, which is rare for birds. It used them to catch fish.1 2

The first fossils of Hesperornis were found by famous fossil hunter Othniel Charles Marsh in 1870 in Kansas.1 2

Several species of Hesperornis lived from about 90 to 66 million years ago, during the Late Cretaceous.5

Hesperornis fossils have been found in many places, including Canada, the United States, Russia, and Sweden.5

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

?How big was Hesperornis?

About 1.5 to 2 metres (4.9 to 6.6 ft) long and weighed around 10.6 kilograms (23 lb).1

?Did Hesperornis have teeth?

Yes, it had teeth in its beak, which is rare for birds. The teeth sat in a groove, not in individual sockets.1

?Could Hesperornis fly?

No, it could not fly. Its wings were tiny and useless for flight, and its breastbone lacked a keel for flight muscles.1 3

?What did Hesperornis eat?

It ate fish, which it caught with its tooth-lined beak while diving in the sea.4

?When did Hesperornis live?

It lived during the Late Cretaceous period, about 83.6 to 72 million years ago, and possibly into the early Maastrichtian.1

?Where was Hesperornis found?

Fossils have been found in Kansas, Canada, Russia, Sweden, and other places, mostly in marine rocks.1

?Could Hesperornis walk on land?

It was clumsy on land. Its legs were placed far back, so it probably pushed itself along on its belly like a seal.1

Gusenya ibinyoma

Ibivugwa: Some people think Hesperornis was a dinosaur.

Ukuri: Hesperornis was a bird, not a dinosaur. Birds evolved from dinosaurs, but Hesperornis itself is classified as a bird.1

Ku bazobereye muri dinozore

Izina rya siyansi: Hesperornis
Yiswe na: Marsh 18725
Itsinda: Inyoni za mbere
Umuryango / ishami: Hesperornithidae5
Ishyirwa mu byiciro: Theropoda > Avialae5
Imyaka y'amabuye: imyaka miliyoni 90 kugeza 66 (Coniacian / Maastrichtian)5
Inzego z'amabuye: Pierre Shale, Rybushka, Niobrara5
Ibihugu: Kanada, Amerika, Uburusiya, Suwede5
Ibisigazwa byanditswe: 65 muri The Paleobiology Database5
Izwi kandi ku izina rya: Coniornis, Hargeria, Lestornis (amazina ya kera ubu abarwa nk'inyamaswa imwe)5
Ivumburwa: Othniel Charles Marsh discovered the first Hesperornis fossil in 1870 near the Smoky Hill River in Kansas. He named it Hesperornis regalis in 1872.1 2
Biracyagibwaho impaka: Scientists are still debating exactly how many species of Hesperornis existed, because many fossils are incomplete.1

Aho amakuru yakuwe

Hesperornis (en.wikipedia.org)
The Hesperornithiformes: A Review of the Diversity, Distribution, and Ecology of the Earliest Diving Birds (mdpi.com)
Hesperornis - Scholars | Britannica Kids | Encyclopedia (kids.britannica.com)
Hesperornis Facts, Artwork, Information - National Geographic | National Geographic (nationalgeographic.com)
Hesperornis in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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