Pyrite fossilizations of ammonites from Mickhailov, Russia.

Binatisphinctes:  Perisphinctidae.
Kosmoceras:       Kosmoceratinae. 
Rondiceras:         Cadoceratinae.

About our ammonite species classifications:  We do not have the horizon information needed to positively identify these ammonite specimens from Mickhailov, Russia.  We know that they all date from Oxfordian or Callovian Ages of the Jurassic Period. We have added tentative species classification on the basis of "it looks like" the species.