Your Group: Fossil Groups

http://www.wmnh.com/wmima000.htm
- Provides some nice pictures of ammonoids, but no analysis or morphological information.

http://www.thecephalopodpage.org/
- Primarily concerned with modern cephalopods.

http://www.fossilmuseum.net/Fossil_Galleries/Ammonites.htm
- A slightly philosophical site with many aesthetically pleasing ammonoids.

http://www.paleozoic.org/gallery.htm
- Contains a few related images including close up example of complex suture pattern.

http://biodidac.bio.uottawa.ca/search.htm
- A website providing free images of ammonoids.

http://en.wikipedia.org/wiki/Ammonoid
- Site is informative and up to date while also containing free images.

Clarkson, E.N.K. 1998. Invertebrate Palaeontology and Evolution, 4th Ed. Chapter 8: Molluscs. Page 197 - 261.