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Igishushanyo cya Miragaia
Ikarita ya dinozore nimero 1190 muri 2 027

Miragaia

Izina risobanura: “wonderful goddess of the Earth”1
Yaryaga: IbimeraDinozore zifite ibisateJurasike ya nyuma kugeza Kiretase ya mbere

Miragaia was a stegosaur, a plant-eating dinosaur with plates and spines on its back. It had an unusually long neck, much longer than most other stegosaurs. This gentle giant lived in what is now Portugal and the United States during the Late Jurassic period.12

Yabayeho
hashize imyaka miliyoni 155 kugeza 1213
Jurasike ya nyuma kugeza Kiretase ya mbere
Ibisigazwa byabonetse muri
Portugal (Lourinhã Formation) and the United States (Morrison Formation in Utah and Wyoming)12
Uburebure
5,5 kugeza 6,5 m (18 kugeza 21 ft)1
Ubutumburuke
1,9 m (6,2 ft)
igereranya
Umuvuduko wo hejuru
nka 15 km/h (9 mph)
Kwiruka, igereranya

Yabayeho ryari?

Triyasike
Jurasike
Kiretase
Hashize miliyoni 252 z'imyaka20114566, asiteroyide

Yanganaga ite?

Yari ndende ite?

Miragaia nka 6,5 m z'uburebure (21 ft)Igare ry'umuntu mukuru nka 1,8 m (5,9 ft)Imodoka nka 4,5 m (15 ft)Inzovu, inyamaswa nini kurusha izindi ziba ku butaka muri iki gihe nka 6,5 m (21 ft)

Ubutumburuke bwayo bwanganaga iki?

Imbwanka 0,5 m (1,6 ft)Ifarashinka 1,6 m (5,2 ft)Miragaianka 1,9 m z'ubutumburuke (6,2 ft)Inzovunka 3,2 m (10 ft)

igereranya

ndende nk'imbwa 6 zikurikiranyendende nk'imineke 36 ikurikiranyeyashoboraga kwiruka metero 100 mu masegonda 24 (umuntu wihuta kurusha abandi akenera 9,6)

Miragaia yanganaga ite ugereranyije NAWE?

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

Yihutaga ite?

utuntu twiza cyane

Utuntu dushimishije

1

Miragaia had at least 17 neck vertebrae, giving it a very long neck for a stegosaur. Most stegosaurs had fewer than 13.1

2

The name Miragaia comes from the village where it was found, Miragaia in Portugal, and also means 'wonderful goddess of the Earth'.1

3

Miragaia belonged to a group called Dacentrurinae, which includes its close relative Dacentrurus. Scientists used to think many stegosaur fossils from Portugal and Spain were Dacentrurus, but now they know some are Miragaia.1

4

A nearly complete skeleton of Miragaia was discovered in 1959 in Atouguia da Baleia, Peniche, Portugal, but it was not described until many years later.1

5

Miragaia shared features with a stegosaur from Wyoming called Alcovasaurus longispinus, suggesting that a land bridge once connected North America and Iberia (Portugal and Spain).1

6

The plates on Miragaia's back were probably used for display, and the spines on its tail (called a thagomizer) could have been a weapon against predators.1

Byakozwe na AIIshusho ya Miragaia yakozwe na AI
Ishusho yakozwe na AI yerekana uko Miragaia 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.

Gusenya ibinyoma

Ibivugwa: Miragaia is sometimes thought to be a species of Dacentrurus.

Ukuri: Scientists now agree that Miragaia is a separate, valid genus, different from Dacentrurus in many ways, such as its longer neck and different vertebrae.1

Ku bazobereye muri dinozore

Izina rya siyansi
Miragaia
Yiswe na
Mateus et al. 20093
Itsinda
Dinozore zifite ibisate
Umuryango / ishami
Stegosauridae3
Ishyirwa mu byiciro
Ornithischia > Stegosauria > Thyreophora3
Imyaka y'amabuye
imyaka miliyoni 155 kugeza 121 (Kimmeridgian / Barremian)3
Inzego z'amabuye
Morrison3
Ibihugu
Amerika3
Ibisigazwa byanditswe
31 muri The Paleobiology Database3
Ivumburwa
Miragaia was named in 2009 by Octávio Mateus and colleagues, based on a partial skeleton found near the village of Miragaia in the Lourinhã Formation of Portugal. The holotype specimen includes much of the front half of the skeleton.1
Biracyagibwaho impaka
Scientists still debate exactly how many species of Miragaia existed, and whether some fossils from North America belong to this genus or to its close relative Dacentrurus.2

Aho amakuru yakuwe

  1. Dacentrurine stegosaurs (Dinosauria): A new specimen of Miragaia longicollum from the Late Jurassic of Portugal resolves taxonomical validity and shows the occurrence of the clade in North America (pmc.ncbi.nlm.nih.gov)
  2. Dacentrurine Stegosaurs in North America: New Occurrences from the Upper Jurassic of USA (Morrison Formation) (dinodata.de)
  3. Miragaia in The Paleobiology Database (CC BY 4.0): imyaka, ahantu, inzego z'amabuye, ishyirwa mu byiciro.

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