Outline: a typical theropod

Baynshire Fm., MongoliaNamed 1983

Enigmosaurus

"riddle lizard"

Type species Enigmosaurus mongoliensis

Lived
101 to 84 million years ago, Late Cretaceous
Diet
Herbivore
Group
Theropods, Therizinosauridae
Found in
Mongolia
Named by
Barsbold and Perle 1983

Where its fossils were found

The evidence

Today

1 find

90 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Enigmosaurus

What it was like

Enigmosaurus was a therizinosaur, a plant-eating theropod with a pot belly and long hand claws. It is known only from its hips, which are broad and unusual.

Its world

It lived in the Late Cretaceous, in what is now Mongolia. It comes from the Baynshire Formation, where it shared the land with its relatives Segnosaurus and Erlikosaurus, the dromaeosaur Achillobator and the armored Talarurus.

How it was found

Barsbold and Perle named Enigmosaurus in 1983. The type species is Enigmosaurus mongoliensis. Some scientists think it may be the same animal as Erlikosaurus, which is known from a skull but no hips.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Therizinosauridae

Sources: WikidataNamed in: R. Barsbold. 1983. Khishchnye dinosavry mela Mongoliy [Carnivorous dinosaurs from the Cretaceous of Mongolia]. Transactions of the Joint Soviet-Mongolian Paleontological Expedition 19:1-117