Tro÷don formosus was a relatively small, bird-like dinosaur from the late Cretaceous Period (68-65MYA). Discovered in 1855, it was among the first dinosaurs found in North America, and is believed to have been one of the most intelligent.

Table of contents
1 Characteristics
2 Classification
3 References



  • Kingdom Animalia
    • Phylum Chordata
      • Class Archosauria
        • Order Saurischia
          • Suborder Theropoda
            • Infraorder Avetheropoda
              • Parvorder Coelurosauria
                • Superfamily Tyrannosauridae
                  • Family Troodontidae
                    • Genus Tro÷don
                      • Species T. formosus