Troodon (n {respell|TROH|ə-don}; Troödon in older sources) is a genus of relatively small, bird-like dinosaurs known definitively from the Campanian age of the Cretaceous period (about 77 mya), though possible additional species are known from later in the Campanian and also from the early (and probably late) Maastrichtian age. It includes at le...
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http://en.wikipedia.org/wiki/Troodon
(from the article `dinosaur`) The maniraptorans comprise birds, dromaeosaurs, and troodontids. Dromaeosaurs were medium-size predators with long, grasping arms and hands, ...
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http://www.britannica.com/eb/a-z/t/83
(pronounced TROH-oh-don) Troodon was a very smart, human-sized, meat-eating theropod dinosaur from the late Cretaceous period , about 76 to 70 million years ago. Fossils of Troodon have been found in Montana, Wyoming (USA) and Alberta (Canada). The type species is T. formosus.
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
Troodon was a dinosaur of the Cretaceous period. The only remains found of
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http://www.probertencyclopaedia.com/browse/BT.HTM
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