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Kaadi ya dayinoso No. 0395 ku 2 027

Chasmosaurus

Erinnya litegeeza: “opening lizard, referring to the large openings in its frill”1

Yalyanga: EbimeraDayinoso ez'amayembeEnkomerero ya Kuretasi

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

Yabeerawo

emyaka obukadde 84 okutuuka ku 72 emabega3

Enkomerero ya Kuretasi

Ebisigalira byazuulibwa mu

Alberta, Canada and Montana, USA1 3

Obuwanvu

4.3 okutuuka ku 4.8 m (14 okutuuka ku 16 ft)1

Obuzito

ttani 1.5 okutuuka ku ttani 2 (3,300 okutuuka ku 4,400 lb)1

Obugulumivu

1.6 m (5.2 ft)

kuteebereza

Sipiidi esinga

nga 35 km/h (22 mph)

Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

Yali munene atya?

Yali muwanvu kwenkana wa?

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kuteebereza

Yali muzito kwenkana wa?

obuzito ng'obw'emmotoka 1.5

obuwanvu ng'embwa 5, ennyindo ku mukiraobuwanvu ng'amenvu 27 nga gaddiriŋŋanaobuzito ng'obw'embwa 100obuzito ng'obwa wotamerooni 400obuzito ng'obw'ebibiina 2.5 ebijjuvu eby'abaana b'essomeroobuzito ng'obwa ddubu enjeru 4yandidduse mita 100 mu sikonda 10 (omuntu asinga embiro yeetaaga 9.6)

Chasmosaurus yali munene atya bw'ogeraageranya ku GGWE?

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Yali wa mbiro kwenkana wa?

Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Chasmosaurus nga 35 km/h (22 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

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

Ekifaananyi kya Chasmosaurus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku Chasmosaurus

?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

Omumenyi w'enfumo

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

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

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Chasmosaurus
Yatuumibwa: Lambe 19143
Ekibinja: Dayinoso ez'amayembe
Ekika / ekibinja: Ceratopsidae3
Engabanya: Ornithischia > Ceratopsia > Ceratopsidae3
Emyaka gy'enjazi: emyaka obukadde 84 okutuuka ku 72 (Campanian)3
Ensengeka z'enjazi: Dinosaur Park, Oldman, Judith River3
Ensi: Kanada, Amerika3
Ebisigalira ebyazuulibwa: 21 mu The Paleobiology Database3
Era emanyiddwa nga: Eoceratops, Mojoceratops, Protorosaurus (amannya ag'edda kati gabalibwa ng'ekisolo kye kimu)3
Okuzuulibwa: 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
Kikyakubaganyizibwako ebirowoozo: Scientists still debate whether some fossils belong to Chasmosaurus or to a separate genus called Mojoceratops.1 3

Ebituufu gye biva

Chasmosaurus (en.wikipedia.org)
Chasmosaurus | Natural History Museum (nhm.ac.uk)
Chasmosaurus in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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