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Amargastegos

Temporal range: Early Cretaceous, 125 MaPreЄ

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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: †Ornithischia
Suborder: †Stegosauria
Genus: Amargastegos

Ulansky, 2014

Species: A. brevicollus
Binomial name
Amargastegos brevicollus

Ulansky, 2014

Amargastegos (meaning "covered being from La Amarga") is a dubious genus ofextinct stegosaurid ornithischiandinosaur. The type species and only current species is A. brevicollus, the species name derived from the unique trait of short cervical vertebrae.Amargastegos is one of few genera of stegosaurid from the Southern Hemisphere, along with traces fromBolivia and the South African genusParanthodon.[1] The new name is registered in the Official Registration of Zoological Nomenclature, or Zoobank, a requirement for validity.[2] TheAmargastegos holotype and only specimen, MACN N-43,[1] comes from the La Amarga Formation of Argentina, and dates specifically to the boundary of the Barremian and Aptian, about 125mya. It includes some dorsalosteoderms, the cervical and caudal vertebrae, and one skull bone.[3] In 2016,Peter Malcolm Galton and Kenneth Carpenter declared it a nomen dubium, establishing it as Stegosauria indet.[4]

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