Name:
Irritator; pronounced IH-rih-tay-tore
Habitat:
Lakesides of South America
Historical Period:
Middle Cretaceous (100 million years ago)
Size and Weight:
About 25 feet long and one ton
Diet:
Meat
Distinguishing Characteristics:
Long, narrow skull; spines along back
About Irritator:
As spinosaurs--large, carnivorous dinosaurs with spiny sails on their backs--go, Irritator wasn't any more "irritating" than any other genus. Rather, this predator acquired its name because its only existing skull had been touched up with plaster by an overeager fossil hunter, requiring paleontologist Dave Martill to spend long, tedious hours undoing the damage. By the way, the species name of the only known type of Irritator is "challengeri," after the lead character in Sir Arthur Conan Doyle's novel The Lost World.
