Dacentrurus armatus

"tail full of points"

Generic stegosaur body-plan outline
You 1.8 m (5.9 ft) tall
Dacentrurus 9 m (29.5 ft) long
as long as 6 people standing fingertip to fingertip
generic stegosaur body plan, scaled to length — not a silhouette of Dacentrurus
Length
9 m (29.5 ft)
Period
Late Jurassic (154–140 Mya)
Place
Europe · United Kingdom
Food
Herbivore
Clade
Stegosauridae Dinosauria Ornithischia Thyreophora Stegosauria Stegosaurus and close relatives.

Dacentrurus (meaning “tail full of points”) is an extinct genus of stegosaurian dinosaur from the Late Jurassic and perhaps Early Cretaceous (154–140 million years ago) of Europe. Its type species, D. armatus, was named in 1875 as Omosaurus armatus, based on a skeleton found in a clay pit in the Kimmeridge Clay in Swindon, England. In 1902 the genus was renamed Dacentrurus because the name Omosaurus had already been used for a phytosaur in 1856. After 1875, half a dozen other species would be named but perhaps only Dacentrurus armatus is valid.

Dacentrurus is among the largest known stegosaurs, measuring around 8 – 9 m long and weighing up to 5 – 7.4 MT. Finds of this animal have been limited, so much of its appearance is uncertain and its relationship with other members of the Dacentrurinae are contentious.

What we know

  • Named by (Owen, 1875 [originally Omosaurus]).
  • Body length estimated at about 9 m.
  • Fossils found in Europe and United Kingdom.

What we guess

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