Cladistic analysis of the Middle Jurassic ammonite radiation

S. Moyne, and P. Neige

2004

Article

Geological Magazine 141(1):115-123

Find it at:

http://dx.doi.org/10.1017/S0016756804009082

Taxa discussed in this work:

• Mollistephanus
• Riccardiceras

Taxonomy:

• Riccardiceras belongs to Stephanoceratoidea - Moyne and Neige (2004)