Types of Dinosaurs: Dinosaur Families & Groups, Examples, Pictures & Facts
Dinosaurs inhabited Earth for around one hundred and seventy million years (far longer than the period of time in which humans have existed), and over that time, many different types of dinosaurs evolved and became extinct.
In order to understand the relationships between different types of dinosaurs, paleontologists organize individual dinosaur species into groups of related species.
For example, Tyrannosaurus rex was part of a family of dinosaurs known as Tyrannosauridae, which itself was part of an even larger group of dinosaurs: Saurischia, which contained both predatory and herbivorous species.
On this page, we list the major dinosaur groups, and provide examples of dinosaurs of each type.
(If you want to see a list of individual dinosaurs rather than types of dinosaurs, visit this page: List of Dinosaurs.)