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Limusaurus

Mangiava: PlantasDinos carnivorsGiurassic tardiv

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

Viveva
avant 162 fin 155 milliuns onns7
Giurassic tardiv
Fossils chattads en
Xinjiang, China, in the Shishugou Formation21
Lunghezza
1,7 fin 1,955 m (5,6 fin 6,4 ft)34
Paisa
15 kg (33 lb)3
Autezza
0,67 m (2,2 ft)
stima
Spertadad maximala
var 41 km/h (25 mph)
Currer, stima

Cura viveva el?

Triassic
Giurassic
Cretacic
avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Limusaurus var 1,955 m lung (6,4 ft)In chaun var 1 m (3,3 ft)In velo da creschids var 1,8 m (5,9 ft)In auto var 4,5 m (15 ft)

Quant aut era el?

In giat da chasavar 0,3 m (1 ft)In chaunvar 0,5 m (1,6 ft)Limusaurusvar 0,67 m aut (2,2 ft)In chavalvar 1,6 m (5,2 ft)

stima

Quant grev era el?

uschè grev sco 4 giats da chasa
uschè lung sco 4 giats da chasa dal nas a la cuauschè lung sco 11 bananas ina suenter l'autrauschè grev sco 120 bananaspudess currer 100 meters en 8,8 secundas (il pli spert uman dovra 9,6)

Quant grond era Limusaurus cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

chaussas cool

Fatgs divertents

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

Fatg cun IAMaletg da Limusaurus fatg cun IA
In maletg fatg cun IA che mussa co Limusaurus pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.
tias dumondas

Las dumondas las pli frequentas davart 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

Chatschader da mitus

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

Vardad: 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

Per experts da dinos

Num scientific
Limusaurus
Numnà da
Xu et al. 20097
Gruppa
Dinos carnivors
Famiglia / clada
Noasauridae7
Classificaziun
Theropoda > Ceratosauria7
Vegliadetgna da la crappa
162 fin 155 milliuns onns (Oxfordian)7
Formaziuns da crap
Shishugou7
Pajais
China7
Chats da fossils
3 en The Paleobiology Database7
Scuverta
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
Anc discutà
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

Danunder che vegnan ils fatgs

  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): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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Dapli da la medema gruppa: Dinos carnivors

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Era dal medem temp: Giurassic tardiv

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