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Katuuni ya Limusaurus
Kaadi ya dayinoso No. 1059 ku 2 027

Limusaurus

Yalyanga: EbimeraDayinoso ezirya ennyamaEnkomerero ya Jurasiki

Limusaurus was a small, beaked dinosaur that lived in what is now China about 155 million years ago. Unlike most meat-eating dinosaurs, it ate plants! Its strange hand helped scientists solve a puzzle about how bird wings evolved.1

Yabeerawo
emyaka obukadde 162 okutuuka ku 155 emabega7
Enkomerero ya Jurasiki
Ebisigalira byazuulibwa mu
Xinjiang, China, in the Shishugou Formation21
Obuwanvu
1.7 okutuuka ku 1.955 m (5.6 okutuuka ku 6.4 ft)34
Obuzito
15 kg (33 lb)3
Obugulumivu
0.67 m (2.2 ft)
kuteebereza
Sipiidi esinga
nga 41 km/h (25 mph)
Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi
Jurasiki
Kuretasi
Emyaka obukadde 252 emabega20114566, asteroyidi

Yali munene atya?

Yali muwanvu kwenkana wa?

Limusaurus obuwanvu nga 1.955 m (6.4 ft)Embwa nga 1 m (3.3 ft)Akagaali k'omukulu nga 1.8 m (5.9 ft)Emmotoka nga 4.5 m (15 ft)

Yali mugulumivu kwenkana wa?

Kkapa ow'awakanga 0.3 m (1 ft)Embwanga 0.5 m (1.6 ft)Limusaurusobugulumivu nga 0.67 m (2.2 ft)Embalaasinga 1.6 m (5.2 ft)

kuteebereza

Yali muzito kwenkana wa?

obuzito ng'obwa kkapa 4 ab'awaka
obuwanvu nga kkapa 4 ab'awaka, ennyindo ku mukiraobuwanvu ng'amenvu 11 nga gaddiriŋŋanaobuzito ng'obw'amenvu 120yandidduse mita 100 mu sikonda 8.8 (omuntu asinga embiro yeetaaga 9.6)

Limusaurus yali munene atya bw'ogeraageranya ku GGWE?

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Yali wa mbiro kwenkana wa?

ebintu ebinyuvu

Ebyewuunyisa

1

Limusaurus was a ceratosaur, the first one ever found in Asia.1

2

It had a very small thumb, or first digit, while the other two fingers were normal. This is a rare condition in dinosaurs.1

3

Its hand showed a mix of features: the wrist bones were like the second, third and fourth digits, but the finger bones were like the first, second and third.1

4

Limusaurus lived during the Oxfordian stage, about 161 to 155 million years ago.2

5

It is the only Jurassic theropod known to have a beak and a plant-based diet.1

6

The discovery of Limusaurus helped scientists understand how the three-fingered hand of theropods could turn into the two-fingered hand of birds.1

Kyakolebwa AIEkifaananyi kya Limusaurus ekyakolebwa AI
Ekifaananyi kya Limusaurus ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.
wabuuza

Ebibuuzo ebisinga okubuuzibwa ku Limusaurus

?What did Limusaurus eat?

It ate plants. Adults had a beak and no teeth, and they also had gastroliths (stomach stones) to help grind up plant food. Juveniles had teeth, so they may have eaten a mix of plants and small animals.5

?How big was Limusaurus?

About 1.7 metres long and weighed around 15 kilograms. That is about as long as a small car is tall, but much lighter.5

?Did Limusaurus have feathers?

Nobody knows for sure. It may have had feathers, but no direct evidence of feathers has been found on its fossils.5

?Why is Limusaurus important?

Its strange hand helped scientists solve a puzzle about how bird wings evolved. It showed a mix of wrist and finger features that explain how the three-fingered hand of theropods turned into the bird wing.16

?Is Limusaurus a dinosaur?

Yes, it is a dinosaur. It is a theropod dinosaur, which is the same group that includes birds.5

?When did Limusaurus live?

It lived during the Late Jurassic period, about 161 to 155 million years ago.5

Omumenyi w'enfumo

Enfumo: Because it is a theropod, Limusaurus must have been a meat-eater.

Amazima: Limusaurus was actually a plant-eater, with a beak and no sharp teeth for hunting. It is one of the few herbivorous theropods known.1

Eri abakugu mu dayinoso

Erinnya lya ssaayansi
Limusaurus
Yatuumibwa
Xu et al. 20097
Ekibinja
Dayinoso ezirya ennyama
Ekika / ekibinja
Noasauridae7
Engabanya
Theropoda > Ceratosauria7
Emyaka gy'enjazi
emyaka obukadde 162 okutuuka ku 155 (Oxfordian)7
Ensengeka z'enjazi
Shishugou7
Ensi
Cayina7
Ebisigalira ebyazuulibwa
3 mu The Paleobiology Database7
Okuzuulibwa
Limusaurus was named and described in 2009 by a team led by paleontologist Xing Xu. Fossils were found in the Junggar Basin of western China.12
Kikyakubaganyizibwako ebirowoozo
Scientists still debate exactly which digits of the hand were lost during theropod evolution, and Limusaurus shows a confusing mix of features that makes this question tricky.1

Ebituufu gye biva

  1. A Jurassic ceratosaur from China helps clarify avian digital homologies | Nature (nature.com)
  2. PBDB Taxon (paleobiodb.org)
  3. Limusaurus (en.wikipedia.org)
  4. A Jurassic ceratosaurian theropod with implications for homologies in the avian hand (ivpp.cas.cn)
  5. Limusaurus (Wikipedia) (Wikipedia)
  6. Beaked, Bird-like Dinosaur Tells Story of Finger Evolution | NSF - National Science Foundation (nsf.gov)
  7. Limusaurus in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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