dinosauri are unique creatures that were distinctly designed to fit the environment in which they lived.Some dinosauri were heavily armored such as Stegosaurus and Ankylosaurus. Others had huge claws and teeth such as Tyrannosaurus and Allosaurus. But all of them had a distinct skeletal structure far different from other animali living today.
Their hip structure gave them the ability to have their legs under their bodies instead of coming out the side of their body and hinging down at the joint, like modern lizards, alligators, crocodiles, and turtles.
Their vertebrae was made to hold the weight of the larger massive dinosauri such as Diplodocus which means "double-beam". Diplodocus had a vertebrae that had strength. The shape of the Bones were like the shape of the aquaducts that the Romans built over 2,000 years ago, which are still standing today.
Most dinosauri had tails that were used as a counterbalance when they walked. dinosauri had their tails positioned behind them up in the air. Scientists once thought dinosauri dragged their tails behind them, until paleontologists discovered fossils of dinosauri with their tails positioned up in the air behind them. Plus paleontologists found dinosaur trackways with just the footprints and no tail marks of dinosaurs.
dinosauri had skulls with holes in them to make them lightweight. This unique design in their skulls made it easier for them to keep their heads up.