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Ichthyornis

Izenaren esanahia: “fish bird”1

Jaten zuen: ArrainaLehen hegaztiakGoi Kretazeoa

Ichthyornis was a seabird that lived during the time of dinosaurs. It had a beak like a modern gull but also sharp teeth in its jaws. It flew over the huge inland sea that once covered the middle of North America.1 4

Bizi izan zen

Duela 100 eta 72 milioi urte artean4

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Alberta and Saskatchewan in Canada; Alabama, California, Kansas, New Mexico, Texas in the USA; also Mexico and Uzbekistan4 1

Luzera

0,24 m (0,8 ft)1

Hego-zabalera

0,43 m (1,4 ft)1

Altuera

0,2 m (0,7 ft)3

Abiadura maximoa

26 km/h inguru (16 mph)

Hegan egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein luzea zen?

Zein altua zen?

ilaran jarritako 8 eraikuntza-pieza bezain luzeaulki baten azpitik ibiltzeko bezain txikiafutbol zelai oso bat zeharkatu zezakeen hegan 15 segundotan

Zein handia zen Ichthyornis 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)

Ichthyornis 26 km/h inguru (16 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Ichthyornis was one of the first prehistoric birds discovered with teeth, and Charles Darwin said it was important for understanding evolution.1

Its backbone bones were shaped like a fish's, which is why it got the name 'fish bird'.1

The beak of Ichthyornis was made of several separate plates, like an albatross's beak, not a single piece like most modern birds.1

Ichthyornis lived between about 93 and 83.5 million years ago, during the Late Cretaceous Period.1

Over time, Ichthyornis grew larger: older fossils have a wing bone about 58 mm long, while younger ones have a wing bone about 71.5 mm long.1

Its teeth were curved backward and set in a groove, similar to those of marine reptiles like mosasaurs.1

Ichthyornis is one of the closest extinct relatives of modern birds, helping scientists learn how today's birds evolved.1

Ichthyornis: AAk egindako irudia — Ichthyornis 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

Ichthyornis: gehien egindako galderak

?How big was Ichthyornis?

About 24 centimetres (9.4 inches) long, with a skeletal wingspan of around 43 centimetres (17 inches). That is about the size of a pigeon.1

?Did Ichthyornis have teeth?

Yes, it had sharp, backward-curved teeth in the middle part of its jaws. The tips of its jaws had no teeth and were covered by a beak.1

?Could Ichthyornis fly?

Yes, it was a strong flier. Its wings and breastbone looked very modern, similar to birds that fly well today.1

?What did Ichthyornis eat?

It probably ate fish and other small sea animals, like modern gulls and terns. Its teeth helped it grab slippery prey.2

?When did Ichthyornis live?

It lived during the Late Cretaceous Period, from about 93 million to 83.5 million years ago.1

?Where did Ichthyornis live?

It lived along the coasts of the huge inland sea that covered the middle of North America. Its fossils have been found in Kansas, Texas, Alberta, and other places.1

?Is Ichthyornis a dinosaur?

Yes, birds evolved from dinosaurs, so Ichthyornis is a type of dinosaur called an avialan. But it is not a non-avian dinosaur like T. rex.1

Mito-hauslea

Mitoa: Ichthyornis is sometimes thought to be a dinosaur like T. rex.

Egia: Ichthyornis is a bird, not a non-avian dinosaur. It belongs to the group Avialae, which includes modern birds and their extinct relatives.1

Dino adituentzat

Izen zientifikoa: Ichthyornis
Izendatzailea:: Marsh 18724
Taldea: Lehen hegaztiak
Familia / klada: Ichthyornithes4
Sailkapena: Theropoda > Avialae4
Arroken adina: 100 eta 72 milioi urte artean (Cenomanian / Campanian)4
Arroka-formazioak: Niobrara, Mooreville Chalk, Belle Fourche4
Herrialdeak: AEB, Kanada, Uzbekistan, Mexiko4
Fosil-erregistroak: 33 The Paleobiology Database datu-basean4
Honela ere ezaguna: Angelinornis, Colonosaurus, Plegadornis (orain animalia bertzat hartzen diren izen zaharragoak)4
Aurkikuntza: Ichthyornis was named by American paleontologist Othniel Charles Marsh in 1872. At first, Marsh thought the toothed jaws belonged to a marine reptile, but later in 1873 he realized they were part of the bird.1 2
Oraindik eztabaidagai: Scientists still debate whether the species should be called Ichthyornis dispar or Ichthyornis anceps, because of naming rules.1

Datuak nondik datozen

Ichthyornis (en.wikipedia.org)
Ichthyornis | Cretaceous period, seabird, toothed beak (britannica.com)
A New Specimen of the Late Cretaceous Bird, cf.Ichthyornissp., from the Cenomanian of Central Kansas, with Comments on the Size Distribution ofIchthyornisin North America (exa.ai)
Ichthyornis in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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