The tail full of points, Dacentrurus (1902)

Phylum : Chordata
Class : Reptilia
Order : Ornithischia
Suborder : Stegosauria
Family : Stegosauridae
Subfamily : Dacentrurinae
Genus : Dacentrurus
Species : D. armatus

  • Late Jurassic (145 - 150 Ma)
  • 8 m long and 5 000 kg (size)
  • Kimmeridge Clay formation, England (map)

Although Stegosaurus is the poster genus, Dacentrurus was actually the first stegosaur ever to be completely described, by the famous paleontologist Richard Owen in 1875 (Owen originally named the specimen Omosaurus, which turned out to have already been assigned to another prehistoric reptile). Judging by its numerous fossil remains, which have been found all over western Europe, Dacentrurus appears to have been a larger-than-average stegosaur, with long, skinny front legs and a relatively low-to-the-ground build. Like other stegosaurs, it was probably a low browser, subsisting on mats of vegetation covering the forest floor.

Dacentrurus reconstitution by Masato Hattori

All Yesterdays!

Dacentrurus is a lovely Dinosaur. I love it’s cool shoulder blades.

This Dacentrurus is sporting a lovely pair of ants nests on two of it’s scutes. Ants do all kinds of crazy things, so why not this? It would definitely make it a lot harder for small insectivores to break into if your your nest was on the back of a mean spiky Stegosaur. 

On Etsy

Dacentrurus (“Very Sharp Tail”)

Lived: The late Jurassic period.

Size: 8 meters long and weight is unknown to me.


Among the largest of the stegosaur, this herbivore had a distinguishing double row of plates down its back and spikes on its tail. In fact, it was the first stegosaur ever discovered.