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Chasmosaurus

Izina risobanura: “opening lizard, referring to the large openings in its frill”1

Yaryaga: IbimeraDinozore zifite amahembeKiretase ya nyuma

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

Yabayeho

hashize imyaka miliyoni 84 kugeza 723

Kiretase ya nyuma

Ibisigazwa byabonetse muri

Alberta, Canada and Montana, USA1 3

Uburebure

4,3 kugeza 4,8 m (14 kugeza 16 ft)1

Uburemere

toni 1,5 kugeza toni 2 (3 300 kugeza 4 400 lb)1

Ubutumburuke

1,6 m (5,2 ft)

igereranya

Umuvuduko wo hejuru

nka 35 km/h (22 mph)

Kwiruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

igereranya

Yari iremereye ite?

iremereye nk'imodoka 1,5

ndende nk'imbwa 5 zikurikiranyendende nk'imineke 27 ikurikiranyeiremereye nk'imbwa 100iremereye nk'imbuto 400 za watermeloniremereye nk'ibyumba 2,5 by'amashuri byuzuye abanairemereye nk'idubu 4 zo mu ruburayashoboraga kwiruka metero 100 mu masegonda 10 (umuntu wihuta kurusha abandi akenera 9,6)

Chasmosaurus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Chasmosaurus nka 35 km/h (22 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

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

Ishusho ya Chasmosaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Chasmosaurus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri 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

Gusenya ibinyoma

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

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

Ku bazobereye muri dinozore

Izina rya siyansi: Chasmosaurus
Yiswe na: Lambe 19143
Itsinda: Dinozore zifite amahembe
Umuryango / ishami: Ceratopsidae3
Ishyirwa mu byiciro: Ornithischia > Ceratopsia > Ceratopsidae3
Imyaka y'amabuye: imyaka miliyoni 84 kugeza 72 (Campanian)3
Inzego z'amabuye: Dinosaur Park, Oldman, Judith River3
Ibihugu: Kanada, Amerika3
Ibisigazwa byanditswe: 21 muri The Paleobiology Database3
Izwi kandi ku izina rya: Eoceratops, Mojoceratops, Protorosaurus (amazina ya kera ubu abarwa nk'inyamaswa imwe)3
Ivumburwa: 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
Biracyagibwaho impaka: Scientists still debate whether some fossils belong to Chasmosaurus or to a separate genus called Mojoceratops.1 3

Aho amakuru yakuwe

Chasmosaurus (en.wikipedia.org)
Chasmosaurus | Natural History Museum (nhm.ac.uk)
Chasmosaurus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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