Dinosaurs A to Z
Metriacanthosauridae

Siamotyrannus isanensis

"Siamese tyrant"

Generic theropod body-plan outline
You 1.8 m (5.9 ft) tall
Siamotyrannus 5 m (16.4 ft) long
as long as 3 people standing fingertip to fingertip
generic theropod body plan, scaled to length — not a silhouette of Siamotyrannus
Length
5 m (16.4 ft)
Period
Early Cretaceous (145–120 Mya)
Place
Thailand
Food
Carnivore
Clade
Metriacanthosauridae

Siamotyrannus (meaning “Siamese tyrant”) is a genus of possibly allosauroid theropod dinosaur from the Early Cretaceous Sao Khua Formation of Thailand.

What we know

  • Named by Buffetaut, Suteethorn & Tong, 1996.
  • Fossils found in Thailand.

What we guess

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