*Armored Dinosaurs (Thyreophora):The largest thyreophorans were "Ankylosaurus" and "Stegosaurus", from the Late Cretaceous and Late Jurassic periods (respectively) of what is now North America, both measuring up to 9 m (30 ft) in length and estimated to weigh up to 6 tonnes.
*Armored Dinosaurs (Thyreophora):The largest thyreophorans were "Ankylosaurus" and "Stegosaurus", from the Late Cretaceous and Late Jurassic periods (respectively) of what is now North America, both measuring up to 9 m (30 ft) in length and estimated to weigh up to 6 tonnes.