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Ikhadi ledayinaso No. 0395 kwe-2 027

Chasmosaurus

Igama lithetha: “opening lizard, referring to the large openings in its frill”1

Yayitya: IzityaloIidayinaso ezineempondoiCretaceous yamva

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

Yaphila

84 ukuya ku-72 izigidi zeminyaka eyadlulayo3

iCretaceous yamva

Iifosili zifunyenwe:

Alberta, Canada and Montana, USA1 3

Ubude

4.3 ukuya ku-4.8 m (14 ukuya ku-16 ft)1

Ubunzima

1.5 iitoni ukuya ku-2 iitoni (3,300 ukuya ku-4,400 lb)1

Ukuphakama

1.6 m (5.2 ft)

uqikelelo

Esona santya siphezulu

malunga ne-35 km/h (22 mph)

Ukubaleka, uqikelelo

Yaphila nini?

iTriassic

iJurassic

iCretaceous

Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Yayiphakame kangakanani?

uqikelelo

Yayinzima kangakanani?

inzima njengeemoto ezingama-1.5

inde njengezinja ezingama-5, impumlo ukuya emsileniinde njengeebhanana ezingama-27 zilandelelanainzima njengezinja ezingama-100inzima njengamavatala angama-400inzima njengamagumbi okufundela apheleleyo abantwana angama-2.5inzima njengeebhere ezimhlophe ezingama-4ibinokubaleka iimitha ezili-100 ngemizuzwana engama-10 (oyena mntu ukhawulezayo udinga i-9,6)

Chasmosaurus wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

Umntu ohambayo malunga ne-5 km/h (3 mph)

Umntwana ekhwele ibhayisikile malunga ne-12 km/h (7 mph)

Chasmosaurus malunga ne-35 km/h (22 mph)

Ihashe elibaleka ngamandla malunga ne-65 km/h (40 mph)

Ingwenkala malunga ne-100 km/h (62 mph)

izinto ezimnandi

Iinyani ezimnandi

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

Umfanekiso owenziwe yi-AI: Chasmosaurus — Umfanekiso owenziwe yi-AI obonisa indlela Chasmosaurus esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

ubuzile

Eyona mibuzo ibuzwa kakhulu: 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

Inyaniso ngeentsomi

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

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

Kwiingcali zeedayinaso

Igama lenzululwazi: Chasmosaurus
Inikwe igama ngu:: Lambe 19143
Iqela: Iidayinaso ezineempondo
Usapho / iclade: Ceratopsidae3
Ukuhlelwa: Ornithischia > Ceratopsia > Ceratopsidae3
Ubudala bamatye: 84 ukuya ku-72 izigidi zeminyaka (Campanian)3
Izakhiwo zamatye: Dinosaur Park, Oldman, Judith River3
Amazwe: iKhanada, iUSA3
Iirekhodi zeefosili: 21 kwi-Paleobiology Database3
Ikwaziwa ngokuba: Eoceratops, Mojoceratops, Protorosaurus (amagama amadala ngoku abalwa njengesilwanyana esinye)3
Ukufunyanwa: 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
Kusaxoxwa ngayo: Scientists still debate whether some fossils belong to Chasmosaurus or to a separate genus called Mojoceratops.1 3

Apho iinyani zivela khona

Chasmosaurus (en.wikipedia.org)
Chasmosaurus | Natural History Museum (nhm.ac.uk)
Chasmosaurus in The Paleobiology Database (CC BY 4.0): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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