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Karete ya dinosaure No. 1059 ho tse 2 027

Limusaurus

E jele: DimelaDidinosaure tse jang namaJurasiki ya Morao

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

E phetse

dilemo tse dimilione tse 162 ho isa ho 155 tse fetileng7

Jurasiki ya Morao

Difosili di fumanwe ho

Xinjiang, China, in the Shishugou Formation2 1

Bolelele

1.7 ho isa ho 1.955 m (5.6 ho isa ho 6.4 ft)3 4

Boima

15 kg (33 lb)3

Bophahamo

0.67 m (2.2 ft)

kakanyo

Lebelo le phahameng ka ho fetisisa

e ka bang 41 km/h (25 mph)

Ho matha, kakanyo

E phetse neng?

Triasiki

Jurasiki

Kretase

Dilemo tse dimilione tse 252 tse fetileng20114566, asteroiti

E ne e le kgolo hakae?

E ne e le telele hakae?

E ne e phahame hakae?

kakanyo

E ne e le boima hakae?

boima jwaloka dikatse tsa lapeng tse 4

telele jwaloka dikatse tsa lapeng tse 4 ho tloha nkong ho isa mohatlengtelele jwaloka dibanana tse 11 di behilwe ka molaboima jwaloka dibanana tse 120e ne e ka matha dimitara tse 100 ka metsotswana e 8.8 (motho ya lebelo ka ho fetisisa o hloka 9,6)

Limusaurus e ne e le kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ho browser ya hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E ne e le lebelo hakae?

Motho ya tsamayang ka maoto e ka bang 5 km/h (3 mph)

Ngwana a palame baesekele e ka bang 12 km/h (7 mph)

Limusaurus e ka bang 41 km/h (25 mph)

Pere e mathang ka matla e ka bang 65 km/h (40 mph)

Lengau e ka bang 100 km/h (62 mph)

dintho tse monate

Dintlha tse monate

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

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

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

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

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

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

Setshwantsho sa Limusaurus se entsweng ke AI — Setshwantsho se entsweng ke AI, se bontshang kamoo Limusaurus e ka beng e ne e shebahala kateng, se entswe ke khomphutha ho ya ka seo bo-ramahlale ba se tsebang. Ke ho hakanya feela: phoofolo ya nnete e ka nna ya ba e ne e shebahala ka tsela e nngwe, mme ha ho motho ya tsebang mebala ya yona ya nnete.

o botsitse

Dipotso tse botswang haholo ka 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.1 6

?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

Mosenyi wa ditshomo

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

Nnete: 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

Bakeng sa ditsebi tsa didinosaure

Lebitso la saense: Limusaurus
E rehilwe ke: Xu et al. 20097
Sehlopha: Didinosaure tse jang nama
Lelapa / leloko: Noasauridae7
Tlhophiso: Theropoda > Ceratosauria7
Dilemo tsa mafika: dilemo tse dimilione tse 162 ho isa ho 155 (Oxfordian)7
Dibopeho tsa mafika: Shishugou7
Dinaha: Tjhaena7
Direkoto tsa difosili: 3 ho The Paleobiology Database7
Ho sibollwa: 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.1 2
E sa ntse e phehwa kgang: 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

Moo dintlha di tswang teng

A Jurassic ceratosaur from China helps clarify avian digital homologies | Nature (nature.com)
PBDB Taxon (paleobiodb.org)
Limusaurus (en.wikipedia.org)
A Jurassic ceratosaurian theropod with implications for homologies in the avian hand (ivpp.cas.cn)
Limusaurus (Wikipedia) (Wikipedia)
Beaked, Bird-like Dinosaur Tells Story of Finger Evolution | NSF - National Science Foundation (nsf.gov)
Limusaurus in The Paleobiology Database (CC BY 4.0): dilemo, dibaka, dibopeho tsa mafika, tlhophiso.

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