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Umfanekiso wekhathuni: Miragaia
Ikhadi ledayinaso No. 1190 kwe-2 027

Miragaia

Igama lithetha: “wonderful goddess of the Earth”1
Yayitya: IzityaloIidayinaso ezinamacwecweiJurassic yamva ukuya ku-iCretaceous yokuqala

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

Yaphila
155 ukuya ku-121 izigidi zeminyaka eyadlulayo3
iJurassic yamva ukuya ku-iCretaceous yokuqala
Iifosili zifunyenwe:
Portugal (Lourinhã Formation) and the United States (Morrison Formation in Utah and Wyoming)12
Ubude
5.5 ukuya ku-6.5 m (18 ukuya ku-21 ft)1
Ukuphakama
1.9 m (6.2 ft)
uqikelelo
Esona santya siphezulu
malunga ne-15 km/h (9 mph)
Ukubaleka, uqikelelo

Yaphila nini?

iTriassic
iJurassic
iCretaceous
Izigidi ezingama-252 zeminyaka eyadlulayo20114566, i-asteroyidi

Yayinkulu kangakanani?

Yayinde kangakanani?

Miragaia malunga ne-6.5 m ubude (21 ft)Ibhayisikile yomntu omdala malunga ne-1.8 m (5.9 ft)Imoto malunga ne-4.5 m (15 ft)Indlovu, esona silwanyana sikhulu emhlabeni namhlanje malunga ne-6.5 m (21 ft)

Yayiphakame kangakanani?

Injamalunga ne-0.5 m (1.6 ft)Ihashemalunga ne-1.6 m (5.2 ft)Miragaiamalunga ne-1.9 m ukuphakama (6.2 ft)Indlovumalunga ne-3.2 m (10 ft)

uqikelelo

inde njengezinja ezingama-6, impumlo ukuya emsileniinde njengeebhanana ezingama-36 zilandelelanaibinokubaleka iimitha ezili-100 ngemizuzwana engama-24 (oyena mntu ukhawulezayo udinga i-9,6)

Miragaia wayemkhulu kangakanani xa ethelekiswa NAWE?

Yimathematika nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwe naphi na.

Yayikhawuleza kangakanani?

izinto ezimnandi

Iinyani ezimnandi

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

Yenziwe yi-AIUmfanekiso owenziwe yi-AI: Miragaia
Umfanekiso owenziwe yi-AI obonisa indlela Miragaia esenokuba wayekhangeleka ngayo, wenziwe yikhompyutha ngokwento eyaziwa zizazinzulu. Kukuqikelela nje: esona silwanyana sinokuba sasikhangeleka ngenye indlela, kwaye akukho mntu waziyo imibala yaso yokwenyani.

Inyaniso ngeentsomi

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

Inyaniso: 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

Kwiingcali zeedayinaso

Igama lenzululwazi
Miragaia
Inikwe igama ngu:
Mateus et al. 20093
Iqela
Iidayinaso ezinamacwecwe
Usapho / iclade
Stegosauridae3
Ukuhlelwa
Ornithischia > Stegosauria > Thyreophora3
Ubudala bamatye
155 ukuya ku-121 izigidi zeminyaka (Kimmeridgian / Barremian)3
Izakhiwo zamatye
Morrison3
Amazwe
iUSA3
Iirekhodi zeefosili
31 kwi-Paleobiology Database3
Ukufunyanwa
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
Kusaxoxwa ngayo
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

Apho iinyani zivela khona

  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): ubudala, iindawo, izakhiwo zamatye, ukuhlelwa.

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