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Khathunu ya Istiorachis
Karata ya dino No. 0891 mo go 2 027

Istiorachis

Leina le raya: “sail spine”1
E jele: DimelaDija-dimela tse di nang le melomoTshimologo ya Cretaceous

Istiorachis was a plant-eating dinosaur that lived on the Isle of Wight over 120 million years ago. It had a tall sail on its back made of long spines, which might have helped it show off to other dinosaurs. It was about the size of an American bison and weighed as much as a small car.2

E tshetse
dimilione tsa dingwaga di le 133 go ya go 121 tse di fetileng4
Tshimologo ya Cretaceous
Difosili di fitlhetswe kwa
Isle of Wight, England, UK12
Bokete
ditone di le 1 (2,200 lb)2
Bogodimo
2 m (6.6 ft)2
Bonako jo bogolo
e ka nna 33 km/h (21 mph)
Go taboga, kakanyo

E tshetse leng?

Triassic
Jurassic
Cretaceous
dimilione tsa dingwaga di le 252 tse di fetileng20114566, asteroiti

E ne e le kgolo go le kae?

E ne e le kwa godimo go le kae?

Ntšwae ka nna 0.5 m (1.6 ft)Pitsee ka nna 1.6 m (5.2 ft)Istiorachise ka nna 2 m bogodimo (6.6 ft)Tloue ka nna 3.2 m (10 ft)

E ne e le bokete go le kae?

bokete jaaka dintšwa di le 50
bokete jaaka magapu a le 200bokete jaaka bana ba kreše ba le 53bokete jaaka bana ba sekolo ba le 31bokete jaaka dibere tse ditshweu di le 2e ne e ka taboga dimetara di le 100 mo metsotswaneng e le 11 (motho yo o bonako go gaisa o tlhoka 9,6)

Istiorachis e ne e le kgolo go le kae fa e bapisiwa le WENA?

Ke dipalo fela mo sebatling sa gago. Ga go sepe se se bolokwang kgotsa se se romelwang gope.

E ne e le bonako go le kae?

dilo tse di monate

Dintlha tse di monate

1

Istiorachis had very long spines on its back and tail bones, making a sail-like structure that was probably used for showing off to mates or scaring predators.1

2

Its name honors Dame Ellen MacArthur, a famous sailor from the Isle of Wight who sailed solo around the world.1

3

The only known fossil of Istiorachis was found in a plant debris bed near Grange Chine on the Isle of Wight.1

4

Some of the skeleton was stolen by poachers before scientists could collect it.1

5

Istiorachis belonged to a group of dinosaurs called iguanodontians, which were common in the Early Cretaceous.2

6

The sail of Istiorachis was made of neural spines that were over four times taller than the main part of the backbone.1

E dirilwe ke AISetshwantsho sa Istiorachis se se dirilweng ke AI
Setshwantsho se se dirilweng ke AI sa kafa Istiorachis e ka tswang e ne e lebega ka gone, se dirilwe ke khomputara go ya ka se borasaense ba se itseng. Ke kakanyo fela: phologolo ya nnete e ka tswa e ne e lebega ka tsela e sele, mme ga go ope yo o itseng mebala ya yona ya nnete.
o botsitse

Dipotso tse di botswang thata ka ga Istiorachis

?How big was Istiorachis?

It was about the size of an American bison, stood around two metres tall, and weighed about one tonne (1,000 kilograms).2

?What did Istiorachis eat?

It was a plant-eating dinosaur, so it ate plants like ferns, cycads and conifers that grew in its warm, forested environment.3

?Why did Istiorachis have a sail?

Scientists think the sail was mostly used for signalling, such as attracting mates or scaring predators, rather than for controlling body temperature.21

?When did Istiorachis live?

It lived more than 120 million years ago, during the Early Cretaceous Period (specifically the Barremian age).23

Ya baitseanape ba didino

Leina la saense
Istiorachis
Leina le neilwe ke
Lockwood et al. 20254
Setlhopha
Dija-dimela tse di nang le melomo
Lelapa / clade
Styracosterna4
Thulaganyo
Ornithischia > Ornithopoda > Iguanodontia4
Bogolo jwa matlapa
133 go ya go 121 dimilione tsa dingwaga (Hauterivian / Barremian)4
Dibopego tsa matlapa
Wessex4
Dinaga
Bogosi jo bo Kopaneng4
Direkoto tsa difosili
1 mo The Paleobiology Database4
Go fitlhelwa
Istiorachis was named in 2025 by Jeremy Lockwood, David Martill, and Susannah Maidment. The fossil was dug up by Nicholas Chase from the Wessex Formation on the Isle of Wight.1
Go sa ntse go ganetsanwa
Scientists are not sure exactly what the sail was used for. It might have helped with walking on four legs, or it might have been for showing off to other dinosaurs.1

Kwa dintlha di tswang teng

  1. The origins of neural spine elongation in iguanodontian dinosaurs and the osteology of a new sail-back styracosternan (Dinosauria, Ornithischia) from the Lower Cretaceous Wealden Group of England (onlinelibrary.wiley.com)
  2. New sail-backed dinosaur species unearthed on the Isle of Wight | Natural History Museum (nhm.ac.uk)
  3. Istiorachis (en.wikipedia.org)
  4. Istiorachis in The Paleobiology Database (CC BY 4.0): dingwaga, mafelo, dibopego tsa matlapa, thulaganyo.

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