The stegosaurus was an armored dinosaur that lived about 150 million years ago. It had a heavily rounded back, short forelimbs, its head held low to the ground, and a stiffened tail held high in the air. The double plates along its back were most likely used for defense and may also have regulated its temperature. Stegosaurus weighed about 6,800 pounds and stood 9 feet tall.
The Brachiosaurus is a dinosaur that lived in North America during the late Jurassic Period and is famous for its extremely long neck and massive body. This dinosaur measured up to 72 feet long, with a weight of over 50 tons and consumed as much as 880 pounds of plants per day.
The name from Greek means 3 horned face. This dinosaur was about 30 feet long, 10 feet tall and weighed 4 to 6 tons. Stout limbs supported its girth but it was unlikely the dinosaur could move very quickly. Like a modern-day rhinoceros, it probably spent much of its time grazing on plant matter.
The Tyrannosaurus rex lived throughout what is now western North America around 68 to 66 million years ago. It was by far the largest carnivore in its environment measuring 40 feet in length and 13 feet tall with a weight of more than 7 tons. It was among the last non-avian dinosaurs to exist before a sudden mass extinction wiped out three-quarters of the plant and animal species on Earth.
Pteranodon is a genus of pterosaurs which included some of the largest known flying reptiles with wingspans over 6 meters. They lived about 80 million years ago in North America in present day Kansas, Alabama, Nebraska, Wyoming, and South Dakota.
The name from Greek means 3 horned face. This dinosaur was about 30 feet long, 10 feet tall and weighed 4 to 6 tons. Stout limbs supported its girth but it was unlikely the dinosaur could move very quickly. Like a modern-day rhinoceros, it probably spent much of its time grazing on plant matter.
The stegosaurus was an armored dinosaur that lived about 150 million years ago. It had a heavily rounded back, short forelimbs, head held low to the ground and a stiffened tail held high in the air. The double plates along its back were most likely used for defense and may also have regulated its temperature. Stegosaurus weighed about 6,800 pounds and was 9 feet tall.
The species Tyrannosaurus rex (rex meaning "king" in Latin), commonly abbreviated to T. rex, is one of the most well-represented of the large theropods. Tyrannosaurus was a bipedal carnivore with a massive skull balanced by a long, heavy tail. Relative to its large and powerful hind limbs, Tyrannosaurus fore limbs were short but unusually powerful for their size and had two clawed digits. It was among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event.