detail of a fossilized ammonite from the sahara desert in morocco.detail of a fossilized ammonite.

abstract africa agoniatitida ammonite ammonoid ammonoidea ancient animal background cephalopod cephalopoda closeup colorful desert detail devonian ecosystem environment erfoud extinct extinction fossil fossilized geography geological geology goniatides goniatite goniatitida goniatitidae historical history inside marine middle mollusc mollusca morocco moroccodetail natural nature ocean old petrified rare sahara scientific sea shell snail spiral stone