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Carta da dino nr. 1190 da 2 027

Miragaia

Il num vul dir: “wonderful goddess of the Earth”1

Mangiava: PlantasDinos cun plattasGiurassic tardiv fin Cretacic tempriv

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.1 2

Viveva

avant 155 fin 121 milliuns onns3

Giurassic tardiv fin Cretacic tempriv

Fossils chattads en

Portugal (Lourinhã Formation) and the United States (Morrison Formation in Utah and Wyoming)1 2

Lunghezza

5,5 fin 6,5 m (18 fin 21 ft)1

Autezza

1,9 m (6,2 ft)

stima

Spertadad maximala

var 15 km/h (9 mph)

Currer, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

stima

uschè lung sco 6 chauns dal nas a la cuauschè lung sco 36 bananas ina suenter l'autrapudess currer 100 meters en 24 secundas (il pli spert uman dovra 9,6)

Quant grond era Miragaia cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Miragaia var 15 km/h (9 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

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

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

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

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

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

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

Maletg da Miragaia fatg cun IA — In maletg fatg cun IA che mussa co Miragaia pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

Chatschader da mitus

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

Vardad: 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

Per experts da dinos

Num scientific: Miragaia
Numnà da: Mateus et al. 20093
Gruppa: Dinos cun plattas
Famiglia / clada: Stegosauridae3
Classificaziun: Ornithischia > Stegosauria > Thyreophora3
Vegliadetgna da la crappa: 155 fin 121 milliuns onns (Kimmeridgian / Barremian)3
Formaziuns da crap: Morrison3
Pajais: USA3
Chats da fossils: 31 en The Paleobiology Database3
Scuverta: 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
Anc discutà: 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

Danunder che vegnan ils fatgs

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)
Dacentrurine Stegosaurs in North America: New Occurrences from the Upper Jurassic of USA (Morrison Formation) (dinodata.de)
Miragaia in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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