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Haolong

Hiika maqaa: “spiny dragon”1

Kan nyaate: BiqiltootaBiqiltuu-nyaattota afaan simbirroo qabanKireetaashasii Jalqabaa

Haolong was a plant-eating dinosaur that walked on two legs and had a long tail. It had special spikes on its skin that looked a bit like porcupine quills, which might have scared away hungry predators.1 2

Kan jiraate

waggaa miliyoona 126 hanga 121 dura4

Kireetaashasii Jalqabaa

Fosiliiwwan kan itti argaman

Yixian Formation, Liaoning Province, China1 2

Dheerina

2.45 m (8 ft)1

Saffisa ol'aanaa

gara 41 km/sa'a (25 mph)

Fiiguu, tilmaama

Yoom jiraate?

Tiraayaasikii

Juraasikii

Kireetaashasii

waggaa miliyoona 252 dura20114566, asteerooyidii

Hammam guddaa ture?

Hammam dheeraa ture?

akka adurree manaa 5 funyaan hanga eegeetti dheeraaakka muuzii 14 walitti hiriiran dheeraameetira 100 sekondii 8.8 keessatti fiiguu danda'a (namni hunda caalaa saffisaan 9.6 barbaada)

SI wajjin yoo wal bira qabamu, Haolong hammam guddaa ture?

Herrega qofa barbaadduu kee keessatti. Wanti tokkollee hin olkaa'amu, eessayyuu hin ergamu.

Hammam saffisaa ture?

Nama miilaan deemu gara 5 km/sa'a (3 mph)

Daa'ima saayikilii irra jiru gara 12 km/sa'a (7 mph)

Haolong gara 41 km/sa'a (25 mph)

Farda gulufu gara 65 km/sa'a (40 mph)

Cheetaa gara 100 km/sa'a (62 mph)

wantoota bareedoo

Odeeffannoowwan bashannansiisoo

Haolong's skin had large overlapping scales on its tail and smaller bumpy scales around its neck and chest.2

The spikes on Haolong were hollow and made of keratin, the same stuff as your fingernails.2

Scientists could see the preserved nuclei of skin cells in Haolong's spikes under a microscope.2

Haolong's spikes were different from the feathers of meat-eating dinosaurs and the spines of modern lizards.1 2

The only known Haolong skeleton is nearly complete and still connected together, which is very rare.1 2

Haolong lived about 125 million years ago during the Early Cretaceous period.4 1

The spikes might have helped Haolong stay cool or feel its surroundings, not just defend itself.1 2

Fakkii AI'n hojjetame: Haolong — Fakkii AI'n hojjetame kan Haolong maal fakkaachuu akka danda'u agarsiisu, kompiitaraan beekumsa saayintistootaa irratti hundaa'uun hojjetame. Tilmaama qofa: bineensi dhugaa adda ta'ee mul'achuu danda'a, halluu isaa dhugaa immoo namni beeku hin jiru.

ati gaafatte

Gaaffiiwwan waa'ee Haolong baay'ee gaafataman

?How big was Haolong?

About 2.45 metres (8 feet) long. That is about the size of a small motorcycle.1

?Did Haolong have feathers?

No. Its skin had scales and hollow spikes made of keratin, not feathers.1 2

?What did Haolong eat?

It was a plant-eater, so it ate leaves and other plants.3

?When did Haolong live?

About 125 million years ago, during the Early Cretaceous period.1

?Where was Haolong found?

In Liaoning Province, northeastern China, in the Yixian Formation.1

?Why did Haolong have spikes?

Mostly to scare away predators, like a porcupine. They might also have helped with cooling or sensing touch.1 2

Seenaa sobaa diigaa

Seenaa sobaa: Haolong was a spiky dinosaur like a Stegosaurus.

Dhugaa: Haolong's spikes were made of keratin and were hollow, not bony plates. They were more like porcupine quills than the plates of Stegosaurus.1 2

Ogeeyyii daayinootiif

Maqaa saayinsii: Haolong
Kan maqaa baase: Huang et al. 20264
Garee: Biqiltuu-nyaattota afaan simbirroo qaban
Maatii / kilaadii: Hadrosauroidea4
Ramaddii: Ornithischia > Ornithopoda > Iguanodontia4
Umurii dhagaawwanii: waggaa miliyoona 126 hanga 121 (Barremian)4
Caasaawwan dhagaa: Yixian4
Biyyoota: Chaayinaa4
Galmee fosilii: 1 The Paleobiology Database keessa4
Argannoo: Haolong was named in 2026 by a team of scientists led by J. Huang. The name honors the famous Chinese paleontologist Dong Zhiming.1 4
Ammallee falmisiisaa: Scientists are not sure if adult Haolong also had spikes, because the only known fossil is a juvenile.1

Odeeffannoon eessaa dhufa

Haolong (en.wikipedia.org)
Cellular-level preservation of cutaneous spikes in an Early Cretaceous iguanodontian dinosaur | Nature Ecology & Evolution (nature.com)
A dinosaur with spikes exhibiting unprecedented properties discovered in China | CNRS (cnrs.fr)
Haolong in The Paleobiology Database (CC BY 4.0): umurii, bakkeewwan, caasaawwan dhagaa, ramaddii.

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