Welcome to our website about a herbivore (plant-eating) dinosaur known for the thick bony dome on its head.

Pachycephalosaurus was a herbivore (plant-eating) dinosaur that lived during the late Cretaceous period, between approximately 76 and 65 million years ago. It has been estimated that Pachycephalosaurus was probably sized about 15 feet (4.5 meters) in length, and perhaps weighed 950 pounds (430 kilograms).

The best known feature of Pachycephalosaurus is the thick bone dome on its head. This dome was about 10 inches (25 centimeters) thick. Additionally, at the back of the dome were several short bony spikes.


Pachycephalosaurus skull:
Pachycephalosaurus Skull
To discover more about Pachycephalosaurus please select from:
  • Classification
    How do scientists classify Pachycephalosaurus?

  • Facts
    Some key facts about Pachycephalosaurus.

  • Name
    How did Pachycephalosaurus get its name? What does its name mean?

  • Pictures
    Pictures of Pachycephalosaurus.

  • Size
    How big was Pachycephalosaurus?

  • Timeline
    Pachycephalosaurus history and timeline.

Your Comments

Please feel free to comment on this page:


Linking to This Page

We do hope that you find this site useful. We welcome people linking to this website or citing us.

The URL of this web page, is:

If you want to link to this web page from your own web site, you can use the following HTML code:

      Pachycephalosaurus Information:








Dinosaur Coloring

Dinosaur Hangman

Dinosaur Jokes

Dinosaur Museums

Dinosaurs News

Dinosaurs Parks

Dinosaur Types

Science Downloads

Science eBooks

Educational Products

Education Downloads

School eBooks

Science eBooks

Science Project Downloads

More Types of Dinosaurs







Tyrannosaurus rex

Copyright © 2008-2020, Answers 2000 Limited

Disclosure: Our company's websites' content (including this website's content) includes advertisements for our own company's websites, products, and services, and for other organization's websites, products, and services. In the case of links to other organization's websites, our company may receive a payment, (1) if you purchase products or services, or (2) if you sign-up for third party offers, after following links from this website. Unless specifically otherwise stated, information about other organization's products and services, is based on information provided by that organization, the product/service vendor, and/or publicly available information - and should not be taken to mean that we have used the product/service in question. Additionally, our company's websites contain some adverts which we are paid to display, but whose content is not selected by us, such as Google AdSense ads. For more detailed information, please see Advertising/Endorsements Disclosures

Our sites use cookies, some of which may already be set on your computer. Use of our site constitutes consent for this. For details, please see Privacy.

Click privacy for information about our company's privacy, data collection and data retention policies, and your rights.

Contact Us   Privacy   Terms of Use   Advertising/Endorsements Disclosures

All trademarks are property of their respective owners.
All third party content and adverts are copyright of their respective owners.

Some graphics on our web sites are Copyright (C) 1997-2000 Hemera Technologies Inc., and used under license. All such pictures are provided for viewing purposes only and are not to be saved or downloaded. All such pictures of recognizable individuals are models and used for illustrative purposes only, and not meant to imply any association or endorsement of said individual with any product or service.