Outline: a typical sauropod

Morrison Fm., UtahNamed 1877

Dystrophaeus

Type species Dystrophaeus viaemalae

Lived
158 to 155 million years ago, Late Jurassic
Diet
Herbivore
Group
Sauropods
Found in
United States
Named by
Cope 1877

Where its fossils were found

The evidence

Today

1 find

155 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Dystrophaeus

What it was like

Dystrophaeus was a long-necked sauropod known from a few broken bones of the front leg, shoulder and hand.

Its world

It lived in the Late Jurassic in what is now Utah. Its bones come from the lowest layers of the Morrison Formation.

How it was found

Cope named Dystrophaeus in 1877. It was the first sauropod found in the western United States. Its bones are too poor to show which sauropod family it belonged to.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Eusauropoda

Sources: WikidataNamed in: E. D. Cope. 1877. On a dinosaurian from the Trias of Utah. Proceedings of the American Philosophical Society 16:579-584