- Clymenonautilus, Juvavionautilus, Oxynautilus, and
Syringoceras.
Syringonautilus and
Syringoceras are
known from both the
Middle and
Upper Tri****ic; Clymenonautilus...
- †Subspyroceras †Subvestinautilus †Suttonoceras †Sycoceras †Synetoceras †
Syringoceras †Syringonautilus †Syrionautilus †Syrreghmatoceras †Systrophoceras †Tainionautilus...
- †Sulioticeras
intermedium – or
unidentified comparable form †
Syringoceras †
Syringoceras spurri – type
locality for
species Contents A B C D E F G H I...
