Classification: Mollusca, Cephalopoda, Ammonoidea, Ammonitida, Stephanocerataceae, Otoitidae.
Known locations: Canada, Tibet and various locations across Europe.
Time period: Mid Jurassic.
Fossil representation: Multiple individuals but only of shells.
Frogdenites is a genus of ammonite that seems to have been fairly common in seas surrounding Eurasia and North America during the Mid Jurassic.
- Treatise on Invertebrate Paleontology, Part L, Mollusca 4, Cephalopoda - Ammonoidea 1-490. - W. J. Arkell, W. M. Furnish, B. Kummel, A. K. Miller, R. C. Moore, O. H. Schindewolf, P. C. Sylvester-Bradley & C. W. Wright - 1957.