Your world is very complex. It has many objects and many forms of life. Fortunately, we have a way of looking at all of this diversity. It is called classification, and it is a way of grouping objects, life forms, and events based on their similarities and differences. Paleontologists look at the fossil bones of dinosaurs to see how they were similar or different.
Animal classification is based on a grouping of certain similar characteristics.
Dinosaurs belong to a group of animals that have two holes in the skull behind the eye. These are the diapsids. Classification works by including and excluding. All rights reserved.