Enigmosaurus

Taxobox|
name = "Enigmosaurus"

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image_width = 250px
image_caption =
regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Saurischia
subordo = Theropoda
familia = Therizinosauridae
genus = "Enigmosaurus"
species = "E. mongolensis"
binomial = "Enigmosaurus mongolensis"
binomial_authority = Barsbold & Perle, 1983

"Enigmosaurus" (meaning "Puzzle Lizard") was a herbivorous bipedal dinosaur, in the family Therizinosauridae, occurring in the late Cretaceous Period, about 95 million years ago in what is now Mongolia, central Asia. It reached up to 7 m long, with a height of 3 m and a weight of one tonne.

The type species, "Enigmosaurus mongolensis", was named in 1983, Barsbold and Perle, from the puzzling and unusual shape of its pelvis (hips). It is a considerably larger dinosaur than the related "Erlikosaurus".