Dino Wiki / Dayinoso zonna / Supinosawulu

Kaadi ya dayinoso No. 0882 ku 2 027

Irritator

Erinnya litegeeza: “the irritator, named for the irritation paleontologists felt when they saw the fossil had been damaged”1

Yalyanga: EnnyamaSupinosawuluEntandikwa ya Kuretasi

Irritator was a meat-eating dinosaur with a long, narrow snout and a small crest on its head. It lived in what is now Brazil about 110 million years ago. It is one of the smallest spinosaurs known.1

Yabeerawo

emyaka obukadde 120 okutuuka ku 113 emabega3

Entandikwa ya Kuretasi

Ebisigalira byazuulibwa mu

Brazil, in the Romualdo Formation of the Araripe Basin1 3

Obuwanvu

6 okutuuka ku 8 m (20 okutuuka ku 26 ft)1

Obuzito

ttani 1 (2,200 lb)1

Obugulumivu

2 m (6.6 ft)1

Sipiidi esinga

nga 29 km/h (18 mph)

Okudduka, kuteebereza

Yabeerawo ddi?

Tiriyasi

Jurasiki

Kuretasi

Emyaka obukadde 252 emabega20114566, asteroyidi

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obuzito ng'obw'embwa 50

obuwanvu ng'embwa 8, ennyindo ku mukiraobuwanvu ng'amenvu 44 nga gaddiriŋŋanaobuzito ng'obwa wotamerooni 200obuzito ng'obw'abaana 53 ab'omu nnasaleobuzito ng'obw'abaana b'essomero 31obuzito ng'obwa ddubu enjeru 2yandidduse mita 100 mu sikonda 12 (omuntu asinga embiro yeetaaga 9.6)

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Omuntu atambula nga 5 km/h (3 mph)

Omwana ku kagaali nga 12 km/h (7 mph)

Irritator nga 29 km/h (18 mph)

Embalaasi edduka ennyo nga 65 km/h (40 mph)

Cheetah nga 100 km/h (62 mph)

ebintu ebinyuvu

Ebyewuunyisa

Irritator's skull is the most complete skull of any spinosaurid dinosaur ever found.1

Its name comes from the irritation scientists felt because fossil collectors had damaged and altered the skull before it was studied.1

A tooth from Irritator was found stuck in the neck bone of a pterosaur, showing that it ate pterosaurs, either by hunting or scavenging.1

Irritator had a thin crest on top of its head, and strong neck muscles were probably attached there.1

Its nostrils were positioned far back on its snout, not at the tip like in many other dinosaurs.1

Irritator lived in a coastal lagoon environment that was surrounded by dry areas.1

The fossil was originally thought to be from a pterosaur, then a maniraptoran dinosaur, before being identified as a spinosaurid in 1996.1

Ekifaananyi kya Irritator ekyakolebwa AI, nga kiraga engeri gye yayinza okuba ng'afaanana, ekyakolebwa kompyuta okusinziira ku ebyo bannassaayansi bye bamanyi. Kuteebereza: ekisolo ekyennyini kiyinza okuba nga kyali kifaanana bulala, era tewali amanyi langi zaakyo ez'amazima.

wabuuza

Ebibuuzo ebisinga okubuuzibwa ku Irritator

?How big was Irritator?

About 6 to 8 metres (20 to 26 feet) long and weighed around 1 tonne (1.1 short tons). It was one of the smallest spinosaurids.1

?What did Irritator eat?

It ate fish and other small animals, like today's crocodiles. A tooth was found stuck in a pterosaur neck bone, so it also ate pterosaurs, either by hunting or scavenging.1

?Why is it called Irritator?

Its name comes from the word 'irritation' because scientists were annoyed that fossil collectors had damaged and altered the skull before they could study it.1

?Did Irritator have feathers?

Nobody knows for sure. No fossil feathers have been found with Irritator, and most spinosaurids are not known to have had feathers.1

?Could Irritator swim?

It may have been semiaquatic, meaning it spent time in water. It lived in a coastal lagoon and probably hunted fish, like today's crocodiles.1

?Was Irritator bigger than T. rex?

No, it was much smaller. Irritator was about 6 to 8 metres long, while T. rex could be over 12 metres long.1

?Did Irritator have a sail on its back?

One possible skeleton suggests it had a sail, like other spinosaurids, but since only a skull has been found, the sail is a guess.2

?When did Irritator live?

It lived during the Early Cretaceous Period, about 113 to 110 million years ago.1

Omumenyi w'enfumo

Enfumo: Some people think Irritator was a fully aquatic dinosaur that only ate fish.

Amazima: Scientists think Irritator was a generalist eater, catching fish and other small prey, and it may have also scavenged. It probably lived both on land and in water.1

Eri abakugu mu dayinoso

Erinnya lya ssaayansi: Irritator
Yatuumibwa: Martill et al. 19963
Ekibinja: Supinosawulu
Ekika / ekibinja: Spinosauridae3
Engabanya: Theropoda > Spinosauridae3
Emyaka gy'enjazi: emyaka obukadde 120 okutuuka ku 113 (Aptian)3
Ensengeka z'enjazi: Romualdo3
Ensi: Buraziiri3
Ebisigalira ebyazuulibwa: 1 mu The Paleobiology Database3
Okuzuulibwa: The skull was found by fossil dealers in Brazil and sold to a museum in Germany. It was described by Martill and colleagues in 1996, and the species was named Irritator challengeri.1 3
Kikyakubaganyizibwako ebirowoozo: Scientists are still unsure whether Irritator actively hunted pterosaurs or just ate their remains.1

Ebituufu gye biva

Irritator (en.wikipedia.org)
Irritator | Natural History Museum (nhm.ac.uk)
Irritator in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.

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