Kritosaurus
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
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2 машиныг эгнүүлэн зогсоосонтой тэнцэх урттай🍌50 бананыг дараалан тавьсантай тэнцэх урттай
200 нохойтой тэнцэх жинтэй🍉800 тарвастай тэнцэх жинтэй🎒бүтэн 5 ангийн сурагчидтай тэнцэх жинтэй🐻❄️9 цагаан баавгайтай тэнцэх жинтэй🏃100 метрийг 16 секундэд гүйх чадалтай (хамгийн хурдан хүн 9.6 секунд гүйдэг)Kritosaurus ЧАМТАЙ харьцуулахад хэр том байсан бэ?
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Сонирхолтой баримтууд
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

Kritosaurus: хамгийн их асуудаг асуултууд
?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.12
?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.12
?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
Домог няцаагч
Домог: Kritosaurus had a big bump on its nose like a Roman nose.
Үнэн: The original skull was broken and the nose area was reconstructed flat. Later scientists realized the real shape was probably arched like Gryposaurus.1
Үлэг гүрвэлийн мэргэжилтнүүдэд
- Шинжлэх ухааны нэр
- Kritosaurus
- Нэр өгсөн
- Brown 19103
- Бүлэг
- Нугасан хушуутнууд
- Овог / клад
- Hadrosauridae3
- Ангилал
- Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae3
- Чулуулгийн нас
- 86 / 66 сая жил (Santonian / Maastrichtian)3
- Чулуулгийн формацууд
- Kirtland, Fruitland, Fruitland/Kirtland3
- Улсууд
- АНУ, Канад3
- Чулуужсан олдворын бүртгэл
- The Paleobiology Database дээр 253
- Нээлт
- 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
- Маргаантай хэвээр
- Scientists still debate whether Kritosaurus is the same as Anasazisaurus and exactly how its skull was shaped.1
Баримтууд хаанаас ирдэг вэ
- Kritosaurus (en.wikipedia.org)
- Kritosaurus | Natural History Museum (nhm.ac.uk)
- Kritosaurus in The Paleobiology Database (CC BY 4.0): нас, газар, чулуулгийн формац, ангилал.
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