This book describes in detail the characteristics and body structure of dinosaurs. The introduction here includes the structure of the skull and the structure of the body.
According to the characteristics of the pelvic structure, the dinosaurs are divided into two major groups - saurischians and ornithischians.
The sauropods were then subdivided into theropods and sauropods. Ornithos are subdivided into armored, ornithopods, and headdressed dragons.
