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Abrictosaurus

Izina risobanura: “wakeful lizard”1 2

Yaryaga: Bike muri byoseIzirya ibimera zifite umunwa w'inyoniJurasike ya mbere

Abrictosaurus was a tiny, speedy dinosaur that munched on plants in the Early Jurassic. It had a beak at the front of its mouth and different kinds of teeth, kind of like we do. Scientists named it 'wakeful lizard' because they disagreed about whether it slept through dry seasons.1 2

Yabayeho

hashize imyaka miliyoni 201 kugeza 1934

Jurasike ya mbere

Ibisigazwa byabonetse muri

Lesotho and South Africa1 4

Uburebure

1,2 m (3,9 ft)1 2

Uburemere

12 kg kugeza 45 kg (26 kugeza 99 lb)1 2

Ubutumburuke

0,4 m (1,3 ft)2

Umuvuduko wo hejuru

nka 40 km/h (25 mph)

Kwiruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

Yari iremereye ite?

iremereye nk'imbwa 2

ndende nk'injangwe 2,5 zo mu rugo zikurikiranyendende nk'imineke 7 ikurikiranyeiremereye nk'injangwe 11 zo mu rugoiremereye nk'imbuto 9 za watermeloniremereye nk'abana 2,5 bo mu ishuri ry'incukeiremereye nk'abanyeshuri 1,5nto ku buryo yanyura munsi y'intebeyashoboraga kwiruka metero 100 mu masegonda 9 (umuntu wihuta kurusha abandi akenera 9,6)

Abrictosaurus yanganaga ite ugereranyije NAWE?

Ni imibare gusa ibarirwa muri mushakisha yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihutaga ite?

Umuntu ugenda n'amaguru nka 5 km/h (3 mph)

Umwana ku igare nka 12 km/h (7 mph)

Abrictosaurus nka 40 km/h (25 mph)

Ifarashi yiruka cyane nka 65 km/h (40 mph)

Ingwe yihuta cyane nka 100 km/h (62 mph)

utuntu twiza cyane

Utuntu dushimishije

Abrictosaurus is known from only two fossils: a partial skull and skeleton, plus a fragmentary skull.1

Unlike some relatives, its cheek teeth were widely spaced with low crowns, more like early ornithischians.1

One fossil had impressive tusks: an upper one 10.5 mm tall and a lower one 17 mm tall, serrated only on the front edge.1

It lived in a hot, half-dry environment with sand dunes and seasonal floods, alongside dinosaurs like Massospondylus and Heterodontosaurus.1

The first scientist who described it thought the tusks were just in males, so he called the female fossil 'consors', meaning partner or spouse.1 2

Abrictosaurus had small, weak forelimbs with only four finger bones in the fourth and fifth fingers, fewer than its relative Heterodontosaurus.1

Ishusho ya Abrictosaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Abrictosaurus ishobora kuba yari isa, yakozwe na mudasobwa hashingiwe ku byo abahanga bazi. Ni ugukeka gusa: inyamaswa nyayo ishobora kuba yari isa ukundi, kandi nta muntu uzi amabara yayo nyayo.

wabajije

Ibibazo bibazwa cyane kuri Abrictosaurus

?How big was Abrictosaurus?

About 1.2 metres (3.9 feet) long and weighed less than 45 kilograms (99 pounds). That is about as long as a small bicycle.1 2

?What did Abrictosaurus eat?

It was a herbivore or omnivore, meaning it mostly ate plants but may have eaten small animals too. It had a beak for cropping plants and different kinds of teeth for chewing.1 3

?Did Abrictosaurus have tusks?

Yes, one of the two known fossils had impressive tusks: an upper one 10.5 mm tall and a lower one 17 mm tall, serrated only on the front edge. The other fossil lacked tusks, which may mean it was a female or a juvenile.1 2

?When did Abrictosaurus live?

It lived during the Early Jurassic Period, about 200 to 190 million years ago. That is long before the famous T. rex.1

Gusenya ibinyoma

Ibivugwa: Some people think Abrictosaurus had no tusks because it was female.

Ukuri: Abrictosaurus did have tusks. One fossil shows clear upper and lower tusks, but they are serrated only on the front, unlike relatives that have serrations on both sides.1

Ku bazobereye muri dinozore

Izina rya siyansi: Abrictosaurus
Yiswe na: Hopson 19754
Itsinda: Izirya ibimera zifite umunwa w'inyoni
Umuryango / ishami: Heterodontosauridae4
Ishyirwa mu byiciro: Ornithischia > Heterodontosauridae4
Imyaka y'amabuye: imyaka miliyoni 201 kugeza 193 (Hettangian / Sinemurian)4
Inzego z'amabuye: Elliot4
Ibihugu: Lesotho4
Ibisigazwa byanditswe: 1 muri The Paleobiology Database4
Ivumburwa: The first fossil was found in Lesotho and named Lycorhinus consors by Richard Thulborn in 1974. In 1975, James Hopson gave it the new genus name Abrictosaurus after studying another skull from South Africa.1 2
Biracyagibwaho impaka: Scientists are still debating whether Abrictosaurus is really a different genus from Lycorhinus and Heterodontosaurus. Some think all three might just be species of Lycorhinus.1

Aho amakuru yakuwe

Abrictosaurus (en.wikipedia.org)
ABRICTOSAURUS : DinoChecker dinosaur archive (dinochecker.com)
Abrictosaurus — Early Jurassic heterodontosaurid from southern Africa (en.alegsaonline.com)
Abrictosaurus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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