ammonites from the cretaceous period found as fossils.

ammonite ammonites ammonitida ammonoidea ancient ancyloceratina animal animals cephalopod cretaceous evolution extinct fauna fossil fossilized fossils geological geology heteromorphy historical history life many marine mollusc museum natural nature object ocean palaeontology paleontological paleontology period prehistoric print sandstone scaphitaceae scaphite scaphites scaphitidae scaphitinae sea shell shells spiral stone time wild wildlife