Dinosaurs A to Z
Tyrannosauridae

Stygivenator

"Hell Creek hunter"

Generic theropod body-plan outline
You 1.8 m (5.9 ft) tall
Stygivenator 10 m (33 ft) long
as long as 6 people standing fingertip to fingertip
generic theropod body plan, scaled to length — not a silhouette of Stygivenator
Length
10 m (33 ft)
Period
Late Cretaceous (66 Mya)
Place
Montana, USA
Food
Carnivore
Clade
Tyrannosauridae Dinosauria Saurischia Theropoda Coelurosauria Tyrannosauroidea Late-Cretaceous tyrants: T. rex, Tarbosaurus, Albertosaurus.

Stygivenator (meaning “Hell Creek hunter”), also known as the “Jordan theropod” is a dubious genus of tyrannosauroid dinosaur from the Hell Creek Formation, the type species is Stygivenator molnari. Originally considered a species of Aublysodon, another dubious genus, and then a juvenile of Tyrannosaurus, its specific identity can not presently be determined due to its poor preservation making it impossible to rule out an identity as either a specimen of Tyrannosaurus or Nanotyrannus.

What we know

  • Named by Olshevsky, Ford & Yamamoto, 1995.
  • Fossils found in Montana, USA.

What we guess

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