Euoplocephalus Dinosaur Facts

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Dinosaur Jungle   >   Dinosaur Names   >   Euoplocephalus
Dinosaur Jungle   >   Dinosaur Types   >   Euoplocephalus



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Scientific Classification
  Kingdom Animalia
  Phylum Chordata
  Class Sauropsida
  Superorder Dinosauria
  Order Ornithischia
  Suborder Thyreophora
  Infraorder Ankylosauria
  Family Ankylosauridae
  Genus Euoplocephalus
Euoplocephalus was a herbivore (plant-eater) that lived in North America during the late Cretaceous period, about 70 to 65 million years ago. It was one of the dinosaurs that died out in the Cretaceous-Tertiary extinction 65 million years ago.

Euoplocephalus was about 20 feet (6 meters) long and probably weighed about 2 tons.

Euoplocephalus was protected from carnivores by its armor which included oval plates embedded its skin, spikes, horns and a club-like tail. It even had armored shutters which could slide down to cover its eyelids. Appropriately enough, its name, Euoplocephalus, means "well-armored head", although it is also sometimes known as "Scolosaurus" (which means "spiny lizard").

Euoplocephalus was discovered by Lawrence Lambe in 1902, who proposed the name "Stereocephalus". However as this name "Stereocephalus" was already being used for an insect, the name of the dinosaur was changed to Euoplocephalus in 1910.

Fossils from around 40 different individuals have been discovered to date, including 15 skulls and one nearly complete skeleton.

Two species of Euoplocephalus are now known: the original species is now known as Euoplocephalus tutus, and a second species which was discovered in 1924 by William Arthur Parks, is now known as Euoplocephalus acutosquameus (the latter was once known as Dyoplosaurus). The species have different shaped clubs in their tails, but despite this, some scientists believe they are in fact a single species. Additionally, some other Ankylosaurids were once classified as being a Euoplocephalus species, but are now classified seperately.


Euoplocephalus Timeline:

Euoplocephalus (Scolosaurus) was a herbivore (plant-eater) that lived from 70 to 65 million years ago

Euoplocephalus (Scolosaurus) was a herbivore (plant-eater) that lived from 70 to 65 million years ago

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Euoplocephalus Facts

Here is a summary of some of the key facts about Euoplocephalus:
  1. Euoplocephalus was a genus of dinosaur.

  2. Although "Euoplocephalus" is the correct scientific name of this genus of dinosaur, the name "Scolosaurus" is also sometimes used. "Euoplocephalus" has been the correct name since 1910. The animal's name was changed, because the first chosen name, "Stereocephalus", had already been used to name a particular type of insect. The name "Scolosaurus" is not the correct name, as it was given to fossils which were not initially realized to be from the Euoplocephalus genus.

  3. "Euoplocephalus" means "well-armored head". This name was chosen by Lawrence Lambe in 1910.

  4. Euoplocephalus was a member of the Ornithischia ("bird-hipped") order of dinosaurs. What this means, is that although Euoplocephalus was not closely related to birds, it did have similarly shaped pelvic bones.

  5. Euoplocephalus lived between about 70 million years ago and 65 million years ago, during the late Cretaceous period.

  6. Euoplocephalus was one of the dinosaurs which died out during the Cretaceous-Tertiary mass extinction at the end of the Mesozoic Era.

  7. Euoplocephalus lived in North America.

  8. Euoplocephalus was a herbivore (plant-eater).

  9. Euoplocephalus was about 20 feet (6 meters) long.

  10. Euoplocephalus weighed about 2 tons.

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