DinosauriaEarly CretaceousEurypodaGenasauriaOrnithischiaSouth AmericaStegosauriaThyreophora

“Amargastegos brevicollus”

Dinosaur: "Amargastegos brevicollus"

Type: Stegosaur

Length*: 3.3 m 10.8 ft
Weight*: 230 kg 507 lb
*The largest known specimen

ESR: 1 / 4 (estimated size reliability)


Epoch: Early Cretaceous
Stage: Barremian-Early Aptian


Status: nomen nudum
Autor: Ulansky
Year: 2014
Area: South America
Country: Argentina
Region: Neuquén
Formation: La Amarga


Material: Supraorbital, two cervical vertebrae, an isolated cervical prezygapophysis, rib fragment, caudal centrum, a cervical plates.
References: Ulansky, R. E., (2014). Evolution of the stegosaurs (Dinosauria; Ornithischia).


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