Coeloceras annulatum

These ammonite fossils were found in England but are now on display at Muséum National D'Historie Naturelle Jardin Des Plantes Paléontologie et Anatomie Comparée in Paris, France. They are Coeloceras annulatum. They existed in the Lower Jurassic Period, Toarcian Stage (183-175 million years ago).


Check out this ammonite collection: http://bertinjc.free.fr/Ammonites.htm