Ammonites are cephalopods in the subclass Ammonoidea. This was a successful group of animals found the world over from the Pragian age of the early Devonian period until the Danian stage of the Paleogene period.
Ammonites are cephalopods in the subclass Ammonoidea. This was a successful group of animals found the world over from the Pragian age of the early Devonian period until the Danian stage of the Paleogene period.