Gigantspinosaurus

Gigantspinosaurus (meaning "giant-spined lizard") is a mediun-sized stegosaur from the Upper Jurassic. It was found in Sichuan, China. It was only about 4.2 metres (14 ft) long and 700 kilograms (1,500 lb) in weight. The animal had greatly enlarged shoulder spines.

Gigantspinosaurus Temporal range: Upper Jurassic 163.5–157.3 mya
Skeletal mount of Gigantspinosaurus in the Zigong Dinosaur Museum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Order:	†Ornithischia
Clade:	†Thyreophora
Suborder:	†Stegosauria
Genus:	†Gigantspinosaurus
Type species
Gigantspinosaurus sichuanensis Ouyang, 1992

A study suggested that Gigantspinosaurus is the most basal known member of the Stegosauria.^[1][2]