Location: Madagascar Time Period: Cretaceous Measurements: ~ 7-1/2" wide x 5-1/2" tall
This is a natural Cleoniceras cleon species Ammonite. Between 145 and 65 million years ago these extinct marine creatures, similar in look to the chambered nautilus, flourished in a warm, shallow sea which covered much of the earth. As the shells of the creatures accumulated on the sea floor, they were buried by sediment and, over the ages, transformed into stone by physical and chemical processes
The chambers of Ammonites were separated by a tissue called septa. One can see the separations of the chambers by means of complete wavy line called a "suture pattern". The suture pattern is the line separating the septa and chambers, and is visible underneath the animals aragonitic shell.