We now know that dinosaurs were very different from all other reptiles past and present. Along with dinosaurs of the past lived alligators, crocodiles, turtles, snakes and various other reptiles land and marine varieties. Some of these reptiles live today but dinosaurs do not. because they are extinct. What makes dinosaurs different from these other reptiles is their hips and how their legs were on their bodies.
Dinosaurs were divided into two groups based on their hip styles. British paleontologist Harry Seeley who lived in the late 1800's, named dinosaurs with hip structures resembling those of birds "Ornithischia" and those with hips similar to lizards "Saurischia". But both of these groups had hips that enabled them to walk upright with their legs underneath them instead of out the side of their bodies and jointed down like an alligator of lizard.
Case in point, when paleontologists put together the fossil skeleton of Diplodocus carnegii at the Carnegie Museum of Natural History (formerly called the Carnegie Institute) in Pittsburgh, Pennsylvania, they put the legs underneath its body. Other paleontologists from another museum zei the legs should come out its side like a lizard. But if they positioned them that way, Diplodocus would of needed a rut under its body of it could not of walk because its body would of dragged on the ground.
Another case in point, Tyrannosaurus rex, would of not been able to verplaats around if it walked like a lizard. Its body would of been out of proportion with its small front arms as legs. They could not of supported its massive five foot head. Tyrannosaurus was made to walk upright on two legs (bipedal). Its massive legs and tail supported its 7 ton frame.
From dinosaur trackways that paleontologists have found, none of them shows any body of tail dragging. only footprints of dinosaurs have been found, indicating that their bodies and tails were high off the ground.
Just go to any natural history museum and look at the larger dinosaur fossil specimens. Look at their hips, tails and their legs. Dinosaurs had a deliberate design to them. This design made for their survival
Dinosaurs were divided into two groups based on their hip styles. British paleontologist Harry Seeley who lived in the late 1800's, named dinosaurs with hip structures resembling those of birds "Ornithischia" and those with hips similar to lizards "Saurischia". But both of these groups had hips that enabled them to walk upright with their legs underneath them instead of out the side of their bodies and jointed down like an alligator of lizard.
Case in point, when paleontologists put together the fossil skeleton of Diplodocus carnegii at the Carnegie Museum of Natural History (formerly called the Carnegie Institute) in Pittsburgh, Pennsylvania, they put the legs underneath its body. Other paleontologists from another museum zei the legs should come out its side like a lizard. But if they positioned them that way, Diplodocus would of needed a rut under its body of it could not of walk because its body would of dragged on the ground.
Another case in point, Tyrannosaurus rex, would of not been able to verplaats around if it walked like a lizard. Its body would of been out of proportion with its small front arms as legs. They could not of supported its massive five foot head. Tyrannosaurus was made to walk upright on two legs (bipedal). Its massive legs and tail supported its 7 ton frame.
From dinosaur trackways that paleontologists have found, none of them shows any body of tail dragging. only footprints of dinosaurs have been found, indicating that their bodies and tails were high off the ground.
Just go to any natural history museum and look at the larger dinosaur fossil specimens. Look at their hips, tails and their legs. Dinosaurs had a deliberate design to them. This design made for their survival
