Dinosaurs A to Z
Piatnitzkysauridae

Marshosaurus

Generic theropod body-plan outline
You 1.8 m (5.9 ft) tall
Marshosaurus 4.5 m (14.8 ft) long
as long as 3 people standing fingertip to fingertip
generic theropod body plan, scaled to length — not a silhouette of Marshosaurus
Length
4.5 m (14.8 ft)
Period
Late Jurassic (155–152 Mya)
Place
Utah, USA · Colorado, USA
Food
Carnivore
Clade
Piatnitzkysauridae

Marshosaurus is a genus of carnivorous theropod dinosaur, belonging to the family Piatnitzkysauridae, from the Late Jurassic Morrison Formation of Utah and possibly Colorado.

What we know

  • Named by Madsen, 1976.
  • Body length estimated at about 4.5 m.
  • Fossils found in Utah, USA and Colorado, USA.

What we guess

The reconstruction notes for Marshosaurus — soft tissue, color, behavior — haven't been written up yet. Only the recorded basics above are filled in so far.