This is a 3d model and animations of an Ammonite.
WebGL demo
An ammonite model is consists of ammonite's body and ammonite's shell.
ammonite's body
AmmoniteLOD0:4680tris
AmmoniteLOD1:1116tris
ammonite's shell
PeltocerasShellModelLOD0:12336
PeltocerasShellModelLOD1:2920
PeltoceratoidesShellModelLOD0:2208
PeltoceratoidesShellModelLOD1:540
-The name of the animations are listed on the screen shots.
-Upgradeable to
Extinct Organisms Pack