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Chithunzi choseketsa cha Limusaurus
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Limusaurus

Ankadya: ZomeraMadino odya nyamaKumapeto kwa 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

Ankakhala
zaka 162 mpaka 155 miliyoni zapitazo7
Kumapeto kwa Jurasiki
Mafosili apezeka ku
Xinjiang, China, in the Shishugou Formation21
Utali
1.7 mpaka 1.955 m (5.6 mpaka 6.4 ft)34
Kulemera
15 kg (33 lb)3
Msinkhu
0.67 m (2.2 ft)
kuyerekeza
Liwiro lalikulu kwambiri
pafupifupi 41 km/h (25 mph)
Kuthamanga, kuyerekeza

Ankakhala liti?

Triasiki
Jurasiki
Kretase
Zaka 252 miliyoni zapitazo20114566, asteroidi

Anali wamkulu bwanji?

Anali wautali bwanji?

Limusaurus utali wa pafupifupi 1.955 m (6.4 ft)Galu pafupifupi 1 m (3.3 ft)Njinga ya munthu wamkulu pafupifupi 1.8 m (5.9 ft)Galimoto pafupifupi 4.5 m (15 ft)

Msinkhu wake unali wautali bwanji?

Mphaka wa pakhomopafupifupi 0.3 m (1 ft)Galupafupifupi 0.5 m (1.6 ft)Limusaurusmsinkhu wa pafupifupi 0.67 m (2.2 ft)Hatchipafupifupi 1.6 m (5.2 ft)

kuyerekeza

Ankalemera bwanji?

wolemera ngati amphaka a pakhomo 4
wautali ngati amphaka a pakhomo 4 otsatizana mphuno ndi mchirawautali ngati nthochi 11 zotsatizanawolemera ngati nthochi 120akanatha kuthamanga mamita 100 m'masekondi 8.8 (munthu waliwiro kwambiri amafunika 9.6)

Limusaurus anali wamkulu bwanji poyerekeza ndi IWEYO?

Ndi masamu chabe mu msakatuli wako. Palibe chimene chimasungidwa kapena kutumizidwa kwina kulikonse.

Anali ndi liwiro lotani?

zinthu zosangalatsa

Mfundo zosangalatsa

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

Chopangidwa ndi AIChithunzi cha Limusaurus chopangidwa ndi AI
Chithunzi cha momwe Limusaurus mwina ankaonekera, chopangidwa ndi kompyuta kuchokera pa zomwe asayansi amadziwa. Ndi kungoyerekeza: nyama yeniyeniyo mwina inkaoneka mosiyana, ndipo palibe amene akudziwa mitundu yake yeniyeni.
mwafunsa

Mafunso ofunsidwa kwambiri okhudza 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

Wothetsa nthano zabodza

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

Zoona: 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

Kwa akatswiri a madino

Dzina la sayansi
Limusaurus
Anapatsidwa dzina ndi
Xu et al. 20097
Gulu
Madino odya nyama
Banja / kladi
Noasauridae7
Magawidwe a sayansi
Theropoda > Ceratosauria7
Zaka za miyala
zaka 162 mpaka 155 miliyoni (Oxfordian)7
Mapangidwe a miyala
Shishugou7
Mayiko
China7
Zolemba za mafosili
3 mu The Paleobiology Database7
Kupezeka
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
Akukambiranabe
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

Kumene mfundo zimachokera

  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): zaka, malo, mapangidwe a miyala, magawidwe a sayansi.

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Ena a gulu lomweli: Madino odya nyama

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