Welcome to Spinosaurus.org our website about one of the most awesome (and possibly the largest) predators to have ever walked the Earth,

Spinosaurus was a giant carnivorous (meat-eating) dinosaur that lived in the Cretaceous period, between approximately 112 and 97 million years ago. It may have grown as large as 41 to 59 feet (12.6 to 18 meters), and weighed somewhere between 8 and 23 tons.

One of the most immediately recognizable features of Spinosaurus is the large "fin" (also sometimes called a "sail") on its back. Spinosaurus probably used this fin to help control its body temperature. It could face the fin towards or awa away from the sun, depending on whether it needed to heat itself up or cool down.


Of course, Spinosaurus is not around any more to study or see, so the information that we do have about the animal comes from scientists studying fossils and other evidence. However, if you watch the movie Jurassic Park III, you can see a Spinosaurus in action (of course recreated using special effects).

Spinosaurus skull:
Spinosaurus skull
To discover more about Spinosaurus please select from:
  • Classification
    How do scientists classify Spinosaurus?

  • Facts
    Some key facts about Spinosaurus.

  • Fin
    What was Spinosaurus's fin for?.

  • Fossils
    What Spinosaurus fossils have been found? Where were they discovered?

  • Name
    How did Spinosaurus get its name? What does its name mean?

  • Pictures
    Pictures of Spinosaurus.

  • Size
    How big was Spinosaurus?

  • Timeline
    Spinosaurus history and timeline.

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