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Kritosaurus

Izina risobanura: “separated lizard”1

Yaryaga: IbimeraIminwa y'imbataKiretase ya nyuma

Kritosaurus was a duck-billed dinosaur that lived in North America near the end of the Age of Dinosaurs. It had a big, flat beak like a duck and could walk on two legs or all fours. This plant-eater munched on tough plants with hundreds of teeth in its cheeks.1

Yabayeho

hashize imyaka miliyoni 86 kugeza 663

Kiretase ya nyuma

Ibisigazwa byabonetse muri

New Mexico, Montana, Texas, USA, and Alberta, Canada3 1

Uburebure

9 m (30 ft)1

Uburemere

toni 4 (8 800 lb)1

Ubutumburuke

3,1 m (10 ft)

igereranya

Umuvuduko wo hejuru

nka 22 km/h (14 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 2,5

ndende nk'imodoka 2 ziparitse ku murongondende nk'imineke 50 ikurikiranyeiremereye nk'imbwa 200iremereye nk'imbuto 800 za watermeloniremereye nk'ibyumba 5 by'amashuri byuzuye abanairemereye nk'idubu 9 zo mu ruburayashoboraga kwiruka metero 100 mu masegonda 16 (umuntu wihuta kurusha abandi akenera 9,6)

Kritosaurus 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)

Kritosaurus nka 22 km/h (14 mph)

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

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

utuntu twiza cyane

Utuntu dushimishije

Kritosaurus means 'separated lizard' because the bones in its cheek were arranged in a special way.1

The first Kritosaurus fossil was found in 1904 by Barnum Brown in New Mexico, but the front of the skull was missing.1

Scientists once thought Kritosaurus had a Roman nose, but that was because the skull was broken and put back together wrong.1

Kritosaurus lived alongside other dinosaurs like Alamosaurus, Parasaurolophus, Pentaceratops, and Bistahieversor.1

Some scientists think Kritosaurus and Anasazisaurus might be the same dinosaur, but others disagree.1

Kritosaurus could reach about 9 metres (30 feet) long and weigh about 4 metric tons (4.4 short tons).1

Ishusho ya Kritosaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Kritosaurus 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 Kritosaurus

?How big was Kritosaurus?

Kritosaurus reached about 9 metres (30 feet) long and weighed about 4 metric tons (4.4 short tons). Some partial remains from Mexico may have been around 11 metres (36 feet) long, but those are now considered a different dinosaur.1 2

?What did Kritosaurus eat?

Kritosaurus was a herbivore, eating plants with a broad beak and hundreds of teeth in its cheeks. It could feed from the ground up to about 4 metres (13 feet) high.1

?When did Kritosaurus live?

Kritosaurus lived during the Late Cretaceous, approximately 74.5 to 66 million years ago.1 2

?Where was Kritosaurus found?

Kritosaurus fossils were found in New Mexico, USA, in the De-na-zin Member of the Kirtland Formation. Some bones from Texas and Mexico were also referred to it, but those are now considered different genera.1

?Why is it called Kritosaurus?

Kritosaurus means 'separated lizard' because of the arrangement of its cheek bones. It's sometimes mistranslated as 'noble lizard' due to a mistaken idea about its nose.1

?Did Kritosaurus have a crest?

Yes, based on a skull originally referred to Anasazisaurus, Kritosaurus had a tab-like crest made of nasal bones that rose between and above its eyes and folded back under itself. This crest helped tell it apart from similar duck-billed dinosaurs.1

Gusenya ibinyoma

Ibivugwa: Kritosaurus had a big bump on its nose like a Roman nose.

Ukuri: The original skull was broken and the nose area was reconstructed flat. Later scientists realized the real shape was probably arched like Gryposaurus.1

Ku bazobereye muri dinozore

Izina rya siyansi: Kritosaurus
Yiswe na: Brown 19103
Itsinda: Iminwa y'imbata
Umuryango / ishami: Hadrosauridae3
Ishyirwa mu byiciro: Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae3
Imyaka y'amabuye: imyaka miliyoni 86 kugeza 66 (Santonian / Maastrichtian)3
Inzego z'amabuye: Kirtland, Fruitland, Fruitland/Kirtland3
Ibihugu: Amerika, Kanada3
Ibisigazwa byanditswe: 25 muri The Paleobiology Database3
Ivumburwa: Barnum Brown discovered the first Kritosaurus fossil in 1904 in New Mexico. He named it in 1910, but the front of the skull was missing and he had to guess what it looked like.1
Biracyagibwaho impaka: Scientists still debate whether Kritosaurus is the same as Anasazisaurus and exactly how its skull was shaped.1

Aho amakuru yakuwe

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

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