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Chasmosaurus

Il num vul dir: “opening lizard, referring to the large openings in its frill”1

Mangiava: PlantasDinos cun cornsCretacic tardiv

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

Viveva

avant 84 fin 72 milliuns onns3

Cretacic tardiv

Fossils chattads en

Alberta, Canada and Montana, USA1 3

Lunghezza

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

Paisa

1,5 tonnas fin 2 tonnas (3 300 fin 4 400 lb)1

Autezza

1,6 m (5,2 ft)

stima

Spertadad maximala

var 35 km/h (22 mph)

Currer, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

stima

Quant grev era el?

uschè grev sco 1,5 autos

uschè lung sco 5 chauns dal nas a la cuauschè lung sco 27 bananas ina suenter l'autrauschè grev sco 100 chaunsuschè grev sco 400 melunasuschè grev sco 2,5 classas da scola entirasuschè grev sco 4 urs polarspudess currer 100 meters en 10 secundas (il pli spert uman dovra 9,6)

Quant grond era Chasmosaurus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Chasmosaurus var 35 km/h (22 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

Maletg da Chasmosaurus fatg cun IA — In maletg fatg cun IA che mussa co Chasmosaurus pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart 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

Chatschader da mitus

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

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

Per experts da dinos

Num scientific: Chasmosaurus
Numnà da: Lambe 19143
Gruppa: Dinos cun corns
Famiglia / clada: Ceratopsidae3
Classificaziun: Ornithischia > Ceratopsia > Ceratopsidae3
Vegliadetgna da la crappa: 84 fin 72 milliuns onns (Campanian)3
Formaziuns da crap: Dinosaur Park, Oldman, Judith River3
Pajais: Canada, USA3
Chats da fossils: 21 en The Paleobiology Database3
Era enconuschent sco: Eoceratops, Mojoceratops, Protorosaurus (nums pli vegls che valan ussa sco il medem animal)3
Scuverta: 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
Anc discutà: Scientists still debate whether some fossils belong to Chasmosaurus or to a separate genus called Mojoceratops.1 3

Danunder che vegnan ils fatgs

Chasmosaurus (en.wikipedia.org)
Chasmosaurus | Natural History Museum (nhm.ac.uk)
Chasmosaurus in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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