Academy of Natural Sciences: Bone Wars - The Cope-Marsh Rivalry
- How the competition between Marsh and Cope had an dramatic but mixed impact on American paleontology.
- http://www.ansp.org/museum/leidy/paleo/bone_wars.php

Haddonfield and the 'Bone Wars'
- Information about how the war of dinosaur discovery between Edward Drinker Cope and Othniel Charles Marsh began in Haddonfield, N.J. in 1868.
- http://www.levins.com/bwars.shtml

The Niagara Falls Museum: The Profile of Edward Drinker Cope
- Article by author Mark Jaffe tells us about Cope's Law, his discoveries, his works, and his feud with Marsh.
- http://www.niagaramuseum.com/cope_article.htm

Wyoming: The Bone Wars
- An illustrated history of the Bone Wars. It includes photos taken from 1904 - 1934 and includes reproductions of engravings from 1871.
- http://www.wyomingtalesandtrails.com/bonewars2.html

Wikipedia: Bone Wars
- Tells how Edward Drinker Cope and Othniel Charles Marsh came to compete in the discovery of dinosaur bones, and the havoc they caused.
- http://en.wikipedia.org/wiki/Bone_Wars

The UnMuseum: Whatever Happened to the Brontosaurus?
- Explains that the brontosaurus is actually an apatosaurus with the head of a camarasaurus. It recounts how this happened.
- http://www.unmuseum.org/dinobront.htm