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Chasmosaurus

Izenaren esanahia: “opening lizard, referring to the large openings in its frill”1

Jaten zuen: LandareakDino adardunakGoi Kretazeoa

Chasmosaurus was a plant-eating dinosaur with a huge bony frill on its head. It lived in what is now Canada and the USA during the Late Cretaceous period, about 77 to 74 million years ago. It was smaller than its famous relative Triceratops, but still weighed as much as a car.1

Bizi izan zen

Duela 84 eta 72 milioi urte artean3

Goi Kretazeoa

Fosilak hemen aurkitu dira:

Alberta, Canada and Montana, USA1 3

Luzera

4,3 eta 4,8 m artean (14 eta 16 ft artean)1

Pisua

1,5 tona eta 2 tona artean (3 300 eta 4 400 lb artean)1

Altuera

1,6 m (5,2 ft)

kalkulua

Abiadura maximoa

35 km/h inguru (22 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?

1,5 auto bezain astun

5 txakur bezain luze, sudurretik buztanerabata bestearen atzean jarritako 27 banana bezain luze100 txakur bezain astun400 angurria bezain astunhaurrez betetako 2,5 ikasgela oso bezain astun4 hartz zuri bezain astun100 metro 10 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Chasmosaurus 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)

Chasmosaurus 35 km/h inguru (22 mph)

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

Gepardo bat 100 km/h inguru (62 mph)

gauza bikainak

Datu dibertigarriak

The name Chasmosaurus means 'opening lizard' because its frill had huge holes, called fenestrae, that made it lighter.1

It was first named Protorosaurus, but that name was already used for another reptile, so it was changed to Chasmosaurus in 1914.1

Some scientists think that Chasmosaurus lived alongside other horned dinosaurs like Centrosaurus, but they probably ate different plants to avoid competing.1

Fossils of Chasmosaurus include skin impressions, which are very rare and help scientists understand what its skin looked like.1

One specimen, ROM 843, is a nearly complete skeleton that shows how the dinosaur was built.1

Chasmosaurus had a short nose and a beak, and its frill was probably used for display or to attract mates.1

Chasmosaurus: AAk egindako irudia — Chasmosaurus 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

Chasmosaurus: gehien egindako galderak

?How big was Chasmosaurus?

Chasmosaurus was about 4.3 to 4.8 metres (14 to 16 feet) long and weighed around 1.5 to 2 tonnes (3,300 to 4,400 pounds). That is about the size of a small car.1 2

?What did Chasmosaurus eat?

Chasmosaurus was a herbivore, meaning it ate plants. It had a horny beak and teeth for cropping and chewing plant material.2

?Did Chasmosaurus have feathers?

No, Chasmosaurus did not have feathers. It had scaly skin, and we know this because fossil skin impressions have been found showing large scales in rows.1

?Why did Chasmosaurus have a frill?

The frill was probably used for display, to attract mates, or to make the dinosaur look bigger. It had huge holes to make it lighter, so it was not much use for defense.1

?Could Chasmosaurus walk on two legs?

No, Chasmosaurus walked on all four legs. Its front legs were shorter than its back legs, but it was quadrupedal.2

?When did Chasmosaurus live?

Chasmosaurus lived during the Late Cretaceous Period, about 77 to 74 million years ago.1 2

?Where was Chasmosaurus found?

Fossils of Chasmosaurus were found in the Dinosaur Park Formation in Alberta, Canada. All excavated specimens come from that area.1

?Was Chasmosaurus related to Triceratops?

Yes, Chasmosaurus was a ceratopsid, so it was related to Triceratops. But Chasmosaurus was smaller and had a longer frill with big holes.1

Mito-hauslea

Mitoa: Some people think Chasmosaurus was a type of Triceratops.

Egia: Chasmosaurus was a different genus of ceratopsid dinosaur, with a much larger frill and smaller horns than Triceratops.1

Dino adituentzat

Izen zientifikoa: Chasmosaurus
Izendatzailea:: Lambe 19143
Taldea: Dino adardunak
Familia / klada: Ceratopsidae3
Sailkapena: Ornithischia > Ceratopsia > Ceratopsidae3
Arroken adina: 84 eta 72 milioi urte artean (Campanian)3
Arroka-formazioak: Dinosaur Park, Oldman, Judith River3
Herrialdeak: Kanada, AEB3
Fosil-erregistroak: 21 The Paleobiology Database datu-basean3
Honela ere ezaguna: Eoceratops, Mojoceratops, Protorosaurus (orain animalia bertzat hartzen diren izen zaharragoak)3
Aurkikuntza: The first Chasmosaurus fossil was found in 1898 by Lawrence Lambe in Alberta, Canada. He named it Monoclonius belli at first, but later changed the name to Chasmosaurus in 1914.1
Oraindik eztabaidagai: Scientists still debate whether some fossils belong to Chasmosaurus or to a separate genus called Mojoceratops.1 3

Datuak nondik datozen

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

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