File:Parasaurolophus skulls.jpg

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

DescriptionParasaurolophus skulls.jpg	Diagram comparing the narial crests of Parasaurolophus cyrtocristatus (a) and Parasaurolophus walkeri (b).
Date	1961
Source	http://digitallibrary.amnh.org/dspace/handle/2246/1260
Author	Ostrom, John H.

This work is in the public domain because it was published in the United States between 1923 and 1963 and although there may or may not have been a copyright notice, the copyright was not renewed. Unless its author has been dead for the required period, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (50 pma), Mainland China (50 pma, not Hong Kong or Macao), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See Commons:Hirtle chart for further explanation.

File usage

The following pages on Schools Wikipedia link to this image (list may be incomplete):

Parasaurolophus

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS3 Windows
File change date and time	19:51, 6 October 2008
Colour space	Uncalibrated

Want to know more?

All five editions of Schools Wikipedia were compiled by SOS Children. SOS Children believes that a decent childhood is essential to a happy, healthy. Our community work brings families new opportunities through education, healthcare and all manner of support. Want to learn more? Go to http://www.soschildrensvillages.org.uk/sponsor-a-child