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Hesperornis

Izenaren esanahia: “western bird”1

Jaten zuen: ArrainaLehen hegaztiakGoi Kretazeoa

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

Bizi izan zen

Duela 90 eta 66 milioi urte artean5

Goi Kretazeoa

Fosilak hemen aurkitu dira:

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

Luzera

1,5 eta 1,8 m artean (4,9 eta 5,9 ft artean)1

Pisua

10,6 kg (23 lb)1

Altuera

0,81 m (2,7 ft)

kalkulua

Abiadura maximoa

16 km/h inguru (10 mph)

Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein altua zen?

kalkulua

Zein astuna zen?

2,5 etxeko katu bezain astun

4 etxeko katu bezain luze, sudurretik buztanerabata bestearen atzean jarritako 10 banana bezain luze88 banana bezain astunigerileku handi baten luzera (50 m) 11 segundotan egin zezakeen igerian

Zein handia zen Hesperornis ZUREKIN alderatuta?

Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.

Zein azkarra zen?

Pertsona bat oinez 5 km/h inguru (3 mph)

Haur bat bizikletan 12 km/h inguru (7 mph)

Hesperornis 16 km/h inguru (10 mph)

Zaldi bat lauhazka 65 km/h inguru (40 mph)

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

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

Hesperornis: AAk egindako irudia — Hesperornis nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.

zure galderak

Hesperornis: gehien egindako galderak

?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

Mito-hauslea

Mitoa: Some people think Hesperornis was a dinosaur.

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

Dino adituentzat

Izen zientifikoa: Hesperornis
Izendatzailea:: Marsh 18725
Taldea: Lehen hegaztiak
Familia / klada: Hesperornithidae5
Sailkapena: Theropoda > Avialae5
Arroken adina: 90 eta 66 milioi urte artean (Coniacian / Maastrichtian)5
Arroka-formazioak: Pierre Shale, Rybushka, Niobrara5
Herrialdeak: Kanada, AEB, Errusia, Suedia5
Fosil-erregistroak: 65 The Paleobiology Database datu-basean5
Honela ere ezaguna: Coniornis, Hargeria, Lestornis (orain animalia bertzat hartzen diren izen zaharragoak)5
Aurkikuntza: 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
Oraindik eztabaidagai: Scientists are still debating exactly how many species of Hesperornis existed, because many fossils are incomplete.1

Datuak nondik datozen

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): adina, tokiak, arroka-formazioak, sailkapena.

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