Marshosaurus

Field photograph to come

DV-0234Morrison Fm., Utah

Marshosaurus

DV-0234

Lived
155 to 143 million years ago, Late Jurassic to Early Cretaceous
Diet
Carnivore
Length
about 6 m (20 ft)
Group
Theropods, Piatnitzkysauridae
Found in
United States
Named by
Madsen 1976

Field notes

About Marshosaurus

Marshosaurus was a meat-eating theropod that lived in the Late Jurassic to Early Cretaceous, 155 to 143 million years ago. It belongs to the family Piatnitzkysauridae.

The Paleobiology Database lists 3 finds of Marshosaurus, from Utah and Colorado. Its fossils come from the Morrison Formation. It was named by Madsen in 1976.

The evidence

Where its fossils were found

Today

3 finds

150 million years ago

Map: C. R. Scotese, PALEOMAP

To scale

How big was Marshosaurus?

0 m1 m2 m3 m4 m5 m6 m
Marshosaurus: about 6 m (20 ft) · Person: 1.8 m (6 ft)Silhouette: typical theropod shape

Lived alongside

Found in the same rock formations.

Close relatives

Other members of Piatnitzkysauridae.

Sources: Paleobiology Database, WikidataNamed in: J. H. Madsen, Jr. 1976. A second new theropod dinosaur from the Late Jurassic of east central Utah. Utah Geology 3(1):51-60