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Parahesperornis

Izenaren esanahia: “near Hesperornis”1

Jaten zuen: HaragiaLehen hegaztiakGoi Kretazeoa

Parahesperornis was a flightless bird that lived in the sea. It swam like a penguin and had teeth in its beak. It lived during the time of dinosaurs, about 85 to 82 million years ago.1 4

Bizi izan zen

Duela 90 eta 84 milioi urte artean4

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Kansas, USA4 1

Luzera

0,6 eta 0,9 m artean (2 eta 3 ft artean)2

Altuera

0,41 m (1,3 ft)

kalkulua

Abiadura maximoa

9 km/h inguru (6 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

2 etxeko katu bezain luze, sudurretik buztanerabata bestearen atzean jarritako 5 banana bezain luzeaulki baten azpitik ibiltzeko bezain txikiaigerileku handi baten luzera (50 m) 20 segundotan egin zezakeen igerian

Zein handia zen Parahesperornis 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)

Parahesperornis 9 km/h inguru (6 mph)

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

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Parahesperornis could not fly. Its wings were tiny and useless for flying, but its legs were strong for swimming.1 2

It had sharp teeth in its beak, which is unusual for modern birds. These teeth helped it grab slippery fish.1 2

Parahesperornis is known from two nearly complete skeletons, which is rare for ancient birds. Most are found as just a few bones.2

It lived in the Western Interior Seaway, a shallow sea that covered central North America during the Cretaceous.1

The first fossil of Parahesperornis was found in 1894, but it was not named until 1984 by scientist L. D. Martin.2 4

Parahesperornis was about the size of a modern loon or a small penguin, around 60 to 90 centimeters long.2

Parahesperornis: AAk egindako irudia — Parahesperornis 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

Parahesperornis: gehien egindako galderak

?Was Parahesperornis a dinosaur?

Yes, it was a type of prehistoric bird. While birds are descendants of dinosaurs, scientists classify Parahesperornis as an avialan bird rather than a dinosaur.1

?How big was Parahesperornis?

It was about 60 to 90 centimetres (2 to 3 feet) long, roughly the size of a modern loon or a small penguin.1

?Did Parahesperornis have teeth?

Yes, it had sharp teeth in its beak, which helped it grab slippery fish.2

?Could Parahesperornis swim?

Yes, it was a foot-propelled diving bird that swam like a penguin, using its strong legs to chase fish underwater.3

Mito-hauslea

Mitoa: Some people think Parahesperornis was a dinosaur.

Egia: Parahesperornis was a bird, not a dinosaur. Birds evolved from dinosaurs, but Parahesperornis is classified as an avialan, which is a group that includes modern birds and their extinct relatives.1 4

Dino adituentzat

Izen zientifikoa: Parahesperornis
Izendatzailea:: Martin 19844
Taldea: Lehen hegaztiak
Familia / klada: Hesperornithidae4
Sailkapena: Theropoda > Avialae4
Arroken adina: 90 eta 84 milioi urte artean (Coniacian / Santonian)4
Arroka-formazioak: Niobrara4
Herrialdeak: AEB4
Fosil-erregistroak: 3 The Paleobiology Database datu-basean4
Aurkikuntza: The first fossil of Parahesperornis alexi was found in 1894 by H. T. Martin in Graham County, Kansas. It was later named by L. D. Martin in 1984.2 4
Oraindik eztabaidagai: Scientists are not sure if some fossils from Mongolia belong to Parahesperornis or a different, similar bird.1

Datuak nondik datozen

Parahesperornis (en.wikipedia.org)
Anatomy of Parahesperornis: Evolutionary Mosaicism in the Cretaceous Hesperornithiformes (Aves) (mdpi.com)
Anatomy of Parahesperornis: Evolutionary Mosaicism in the Cretaceous Hesperornithiformes (Aves) (pmc.ncbi.nlm.nih.gov)
Parahesperornis in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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