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Amanasaurus

Izina risobanura: “rain lizard”1

Yaryaga: IbimeraIzirya ibimera zifite umunwa w'inyoniTriyasike ya nyuma

Amanasaurus was a plant-eating dinosaur that lived about 233 million years ago in what is now Brazil. It had a beak-like mouth and walked on four legs, munching on ferns and other plants. This dinosaur was about the size of a large dog, making it one of the bigger plant-eaters of its time.2 6

Yabayeho

hashize imyaka miliyoni 237 kugeza 2276

Triyasike ya nyuma

Ibisigazwa byabonetse muri

Pivetta site, between Restinga Sêca and São João do Polêsine, Rio Grande do Sul, Brazil2 6

Uburebure

kugeza kuri 1,27 m (4,2 ft)3

Uburemere

kugeza kuri 3,5 kg (8 lb)3

Ubutumburuke

0,42 m (1,4 ft)

igereranya

Umuvuduko wo hejuru

nka 25 km/h (16 mph)

Kwiruka, igereranya

Yabayeho ryari?

Triyasike

Jurasike

Kiretase

Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Ubutumburuke bwayo bwanganaga iki?

igereranya

Yari iremereye ite?

iremereye nk'imineke 29

ndende nk'injangwe 2,5 zo mu rugo zikurikiranyendende nk'imineke 7 ikurikiranyeiremereye nk'injangwe yo mu rugoiremereye nk'imineke 29nto ku buryo yanyura munsi y'intebeyashoboraga kwiruka metero 100 mu masegonda 14 (umuntu wihuta kurusha abandi akenera 9,6)

Amanasaurus 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)

Amanasaurus nka 25 km/h (16 mph)

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

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

utuntu twiza cyane

Utuntu dushimishije

Amanasaurus lived during a time called the Carnian pluvial episode, a wet period when it rained a lot. Its name 'rain lizard' comes from that.1 2

Scientists know Amanasaurus from just two leg bones: a top part of a right thigh bone and a bottom part of a left thigh bone. These bones were found in the same spot.2 1

Amanasaurus was about the same size as the earliest dinosaurs that lived alongside it. This surprised scientists, who thought silesaurids were always smaller.2

The thigh bone of Amanasaurus had a special groove called a cleft between the top of the anterior trochanter and the shaft. This is the oldest such feature seen in any silesaurid.2

Amanasaurus is named after Dr. Sterling J. Nesbitt, a paleontologist who studied many Triassic reptiles. The species name 'nesbitti' honors his work.1 2

Some scientists think Amanasaurus might be a very early type of ornithischian dinosaur, the group that includes plant-eaters like Stegosaurus and Triceratops. Others say it is a close cousin of dinosaurs.2 1

Ishusho ya Amanasaurus yakozwe na AI — Ishusho yakozwe na AI yerekana uko Amanasaurus 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 Amanasaurus

?How big was Amanasaurus?

About 1.3 metres (4.3 feet) long, based on the larger leg bone found. That is roughly the size of a large dog.4

?Was Amanasaurus a dinosaur?

Scientists disagree. Some say it was a very early ornithischian dinosaur, while others say it was a close cousin of dinosaurs. Either way, it is a dinosauriform, meaning it is closely related to dinosaurs.5 1

?What did Amanasaurus eat?

It was a plant-eater. It used its beak-like mouth to munch on ferns and other plants that grew during the rainy Carnian period.4

Ku bazobereye muri dinozore

Izina rya siyansi: Amanasaurus
Yiswe na: Müller and Garcia 20236
Itsinda: Izirya ibimera zifite umunwa w'inyoni
Umuryango / ishami: Silesauridae6
Ishyirwa mu byiciro: Ornithischia6
Imyaka y'amabuye: imyaka miliyoni 237 kugeza 227 (Carnian)6
Ibihugu: Burezili6
Ibisigazwa byanditswe: 1 muri The Paleobiology Database6
Ivumburwa: Amanasaurus was named in 2023 by paleontologists Rodrigo T. Müller and Maurício S. Garcia. They studied two fossil leg bones found at the Pivetta site in Brazil.6 2
Biracyagibwaho impaka: Scientists are not sure if Amanasaurus was a true dinosaur or a very close relative. Some studies place it inside Ornithischia, while others put it just outside Dinosauria.2 1

Aho amakuru yakuwe

Amanasaurus (en.wikipedia.org)
A new silesaurid from Carnian beds of Brazil fills a gap in the radiation of avian line archosaurs (nature.com)
Amanasaurus nesbitti | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
Paleontólogos da UFSM descobrem nova espécie pré-histórica que preenche lacuna na evolução dos dinossauros – UFSM (ufsm.br)
A new silesaurid from Carnian beds of Brazil fills a gap in the radiation of avian line archosaurs | Scientific Reports (nature.com)
Amanasaurus in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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