Microraptor was the smallest raptor, measuring about two feet long. Dilong was the smallest tyrannosaur, weighing only 25 pounds. Europasaurus was the smallest sauropod, weighing under 2,000 pounds. Aquilops was the smallest horned dinosaur, weighing only three pounds. Minmi was the smallest armored dinosaur, weighing 500 pounds
Tyrannosaurs were powerful carnivores from late Cretaceous, including T. rex. Sauropods reached lengths over 100 feet and weighed over 100 tons. Ceratopsians had huge horned skulls, some weighing only few hundred pounds. Raptors were bipedal birds with feathers and three-fingered hands. Ornithomimids were bird-like dinosaurs capable of speeds up to 50 mph
Mesozoic Era spans 250-65 million years ago. Geologists mark dinosaur periods based on fossil locations. Earth was joined into Pangaea during Triassic period
Mosasaurus lived 82-66 million years ago, reaching up to 56 feet long. Megalodon lived 23-3.6 million years ago, reaching up to 67 feet long
DreamWorks Animation's five-franchise includes three feature films. First film released in 2010, based on Cressida Cowell's book. Story follows Hiccup's coming-of-age in Viking world. First film distributed by Paramount, second by Fox, third by Universal
Megalodon weighed 50-70 tons and measured 60-70ft long. Mosasaurus weighed 15 tons and measured 49-59ft long. Megalodon had 270+ serrated teeth and 40,000 lbs bite force. Mosasaurus had 40-50 teeth and 13,000-16,000 lbs bite force