Herrerasaurus

The Herrerasaurus are recurring antagonists in the 1999 TV series  Sir Arthur Conan Doyle's The Lost World.

History
The Herrerasaurus are dangerous predators from The Lost World. They are seen attacking and chasing the main characters in many episodes. In some occasions, they also attack the other creatures of the plateau. They generally hunt in packs.

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 * Despite being Herrerasaurus, they look more like Dilophosaurus.
 * They didn't appear in Arthur Conan Doyle's original novel.