Dino txartela, 0986. zk. (2 027 guztira)

Kritosaurus

Izenaren esanahia: “separated lizard”1

Jaten zuen: LandareakAhate-mokoakGoi Kretazeoa

Kritosaurus was a duck-billed dinosaur that lived in North America near the end of the Age of Dinosaurs. It had a big, flat beak like a duck and could walk on two legs or all fours. This plant-eater munched on tough plants with hundreds of teeth in its cheeks.1

Bizi izan zen

Duela 86 eta 66 milioi urte artean3

Goi Kretazeoa

Fosilak hemen aurkitu dira:

New Mexico, Montana, Texas, USA, and Alberta, Canada3 1

Luzera

9 m (30 ft)1

Pisua

4 tona (8 800 lb)1

Altuera

3,1 m (10 ft)

kalkulua

Abiadura maximoa

22 km/h inguru (14 mph)

Korrika 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 auto bezain astun

ilaran aparkatutako 2 auto bezain luzebata bestearen atzean jarritako 50 banana bezain luze200 txakur bezain astun800 angurria bezain astunhaurrez betetako 5 ikasgela oso bezain astun9 hartz zuri bezain astun100 metro 16 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Kritosaurus 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)

Kritosaurus 22 km/h inguru (14 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

Kritosaurus means 'separated lizard' because the bones in its cheek were arranged in a special way.1

The first Kritosaurus fossil was found in 1904 by Barnum Brown in New Mexico, but the front of the skull was missing.1

Scientists once thought Kritosaurus had a Roman nose, but that was because the skull was broken and put back together wrong.1

Kritosaurus lived alongside other dinosaurs like Alamosaurus, Parasaurolophus, Pentaceratops, and Bistahieversor.1

Some scientists think Kritosaurus and Anasazisaurus might be the same dinosaur, but others disagree.1

Kritosaurus could reach about 9 metres (30 feet) long and weigh about 4 metric tons (4.4 short tons).1

Kritosaurus: AAk egindako irudia — Kritosaurus 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

Kritosaurus: gehien egindako galderak

?How big was Kritosaurus?

Kritosaurus reached about 9 metres (30 feet) long and weighed about 4 metric tons (4.4 short tons). Some partial remains from Mexico may have been around 11 metres (36 feet) long, but those are now considered a different dinosaur.1 2

?What did Kritosaurus eat?

Kritosaurus was a herbivore, eating plants with a broad beak and hundreds of teeth in its cheeks. It could feed from the ground up to about 4 metres (13 feet) high.1

?When did Kritosaurus live?

Kritosaurus lived during the Late Cretaceous, approximately 74.5 to 66 million years ago.1 2

?Where was Kritosaurus found?

Kritosaurus fossils were found in New Mexico, USA, in the De-na-zin Member of the Kirtland Formation. Some bones from Texas and Mexico were also referred to it, but those are now considered different genera.1

?Why is it called Kritosaurus?

Kritosaurus means 'separated lizard' because of the arrangement of its cheek bones. It's sometimes mistranslated as 'noble lizard' due to a mistaken idea about its nose.1

?Did Kritosaurus have a crest?

Yes, based on a skull originally referred to Anasazisaurus, Kritosaurus had a tab-like crest made of nasal bones that rose between and above its eyes and folded back under itself. This crest helped tell it apart from similar duck-billed dinosaurs.1

Mito-hauslea

Mitoa: Kritosaurus had a big bump on its nose like a Roman nose.

Egia: The original skull was broken and the nose area was reconstructed flat. Later scientists realized the real shape was probably arched like Gryposaurus.1

Dino adituentzat

Izen zientifikoa: Kritosaurus
Izendatzailea:: Brown 19103
Taldea: Ahate-mokoak
Familia / klada: Hadrosauridae3
Sailkapena: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae3
Arroken adina: 86 eta 66 milioi urte artean (Santonian / Maastrichtian)3
Arroka-formazioak: Kirtland, Fruitland, Fruitland/Kirtland3
Herrialdeak: AEB, Kanada3
Fosil-erregistroak: 25 The Paleobiology Database datu-basean3
Aurkikuntza: Barnum Brown discovered the first Kritosaurus fossil in 1904 in New Mexico. He named it in 1910, but the front of the skull was missing and he had to guess what it looked like.1
Oraindik eztabaidagai: Scientists still debate whether Kritosaurus is the same as Anasazisaurus and exactly how its skull was shaped.1

Datuak nondik datozen

Kritosaurus (en.wikipedia.org)
Kritosaurus | Natural History Museum (nhm.ac.uk)
Kritosaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.

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