Pasquiaornis

Izenaren esanahia: “Pasquia bird”1

Jaten zuen: HaragiaLehen hegaztiakGoi Kretazeoa

Pasquiaornis was a diving seabird that lived in the warm, shallow sea that once covered part of North America. It had teeth in its beak and was a great swimmer, chasing fish and other sea creatures underwater.1

Bizi izan zen

Duela 100 eta 94 milioi urte artean2

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Carrot River valley near the Pasquia Hills, Saskatchewan, Canada1 2

Abiadura maximoa

12 km/h inguru (7 mph)

Igeri egitea, kalkulua

Noiz bizi izan zen?

Triasikoa

Jurasikoa

Kretazeoa

Duela 252 milioi urte20114566, asteroidea

Zein azkarra zen?

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

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

Pasquiaornis 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

Pasquiaornis lived about 95 to 93 million years ago, during the Late Cretaceous period.1

Two species are known: Pasquiaornis hardiei and Pasquiaornis tankei. P. tankei was about one-third larger than P. hardiei.1

Pasquiaornis was a member of the Hesperornithes, a group of toothed, diving birds that were mostly flightless.1

Its wing bones were thickened and not well suited for flying, so scientists think it probably could not fly.1

Fossils of at least 9 individuals were found in a small area, which might mean they lived in colonies or died together in a mass event.1

The rocks where Pasquiaornis was found were once the bottom of the Western Interior Seaway, a shallow sea that split North America in two.1

Pasquiaornis: AAk egindako irudia — Pasquiaornis 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.

Dino adituentzat

Izen zientifikoa: Pasquiaornis
Izendatzailea:: Tokaryk et al. 19972
Taldea: Lehen hegaztiak
Familia / klada: Hesperornithiformes2
Sailkapena: Theropoda > Avialae2
Arroken adina: 100 eta 94 milioi urte artean (Cenomanian)2
Arroka-formazioak: Belle Fourche2
Herrialdeak: Kanada2
Fosil-erregistroak: 2 The Paleobiology Database datu-basean2
Aurkikuntza: Pasquiaornis was named in 1997 by Tim Tokaryk, Stephen Cumbaa and John Storer. The fossils were collected near Arborfield, Saskatchewan, mostly during 1992 to 1993 expeditions by the Royal Saskatchewan Museum and the Canadian Museum of Nature.1 2
Oraindik eztabaidagai: Scientists are not sure whether Pasquiaornis could still fly, because its wing bones look like those of flying birds but are too thick for good flight.1

Datuak nondik datozen

Pasquiaornis (en.wikipedia.org)
Pasquiaornis in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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