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Istiorachis: marrazkia
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Istiorachis

Izenaren esanahia: “sail spine”1
Jaten zuen: LandareakLandarejale mokodunakBehe Kretazeoa

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

Bizi izan zen
Duela 133 eta 121 milioi urte artean4
Behe Kretazeoa
Fosilak hemen aurkitu dira:
Isle of Wight, England, UK12
Pisua
1 tona (2ย 200 lb)2
Altuera
2 m (6,6 ft)2
Abiadura maximoa
33 km/h inguru (21 mph)
Korrika egitea, kalkulua

Noiz bizi izan zen?

Triasikoa
Jurasikoa
Kretazeoa
Duela 252 milioi urte20114566, asteroidea

Zein handia zen?

Zein altua zen?

Txakur bat0,5 m inguru (1,6 ft)Zaldi bat1,6 m inguru (5,2 ft)Istiorachis2 m inguru altu (6,6 ft)Elefante bat3,2 m inguru (10 ft)

Zein astuna zen?

50 txakur bezain astun
200 angurria bezain astunhaur-eskolako 53 haur bezain astun31 eskolaume bezain astun2 hartz zuri bezain astun100 metro 11 segundotan egin zitzakeen korrika (gizakirik azkarrenak 9,6 behar ditu)

Zein handia zen Istiorachis ZUREKIN alderatuta?

Zure nabigatzaileko kalkulu hutsak. Ez da ezer gordetzen ez inora bidaltzen.

Zein azkarra zen?

gauza bikainak

Datu dibertigarriak

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

AAk eginaIstiorachis: AAk egindako irudia
Istiorachis nolakoa izan zitekeen erakusten duen AAk egindako irudia, ordenagailu batek zientzialariek dakitenetik sortua. Asmakizun bat da: benetako animalia desberdina izan zitekeen, eta inork ez daki zein ziren bere benetako koloreak.
zure galderak

Istiorachis: gehien egindako galderak

?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

Dino adituentzat

Izen zientifikoa
Istiorachis
Izendatzailea:
Lockwood et al. 20254
Taldea
Landarejale mokodunak
Familia / klada
Styracosterna4
Sailkapena
Ornithischia > Ornithopoda > Iguanodontia4
Arroken adina
133 eta 121 milioi urte artean (Hauterivian / Barremian)4
Arroka-formazioak
Wessex4
Herrialdeak
Erresuma Batua4
Fosil-erregistroak
1 The Paleobiology Database datu-basean4
Aurkikuntza
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
Oraindik eztabaidagai
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

Datuak nondik datozen

  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): adina, tokiak, arroka-formazioak, sailkapena.

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