These are some Lego dinosaurs I built. I knew how to build the Pteranodon because I looked in a Lego book I have called The Lego Play Book.
It shows the Lego Pteranodon taken apart so you can see the pieces you need to build it.
I figured out how to build the other Lego dinosaurs on my own. I have built Lego dinosaurs much bigger than the biggest dinosaur in these pictures.
On the Omeisaurus I used minifigure legs for the neck. It makes the neck flexible.
A Parasaurolophus had a crest on its head. There may have been skin hanging from the crest. It was probably brightly colored and used like a flag.
A Triceratops had three horns and a frill.
Brachiosaurus was one of the largest sauropod dinosaurs. Brachiosaurus had a crest on its head. The crest was not in the same shape as the Parasaurolophus or Pteranodon's crests were. The Brachiosaurus's crest was just like a bump on its head. The crest on this Brachiosaurus is made out of two Lego pieces. The pieces are the same kind of piece but they are different colors.