Jurassic Ammonites
- Systematic collection of fossil cephalopoda with ammonites of typical faunas. Also includes myths and legends about ammonites.
- http://perso.orange.fr/jean-ours.filippi/anglais/

Fossil Cephalopods in Utah
- A pictorial guide to some of the fossil cephalopods that can be found in the State of Utah, mostly Ammonoids, but many other cephalopods are pictured. Pictures of some collecting localities are also included.
- http://www.ammonoid.com

Computational Paleontology
- Modelling ammonite ribs and sutures.
- http://www.notam02.no/~oyvindha/compal.html

WMNH - Ammonites
- Ammonites at the Black Hills Institute
- http://www.wmnh.com/wmima000.htm

Body Position and the Functional Morphology of Cretaceous Heteromorph Ammonites
- An article in Paleontographic Electronica.
- http://luna.geol.niu.edu/1998_1/monks/main.htm

Ammonoidea
- Information about the biology of ammonoids from The Cephalopod Page.
- http://is.dal.ca/~ceph/TCP/ammon.html