Polished Ammonite Split Pair - 3.913" Cleoniceras ancienthistory and one to be preserved

and one to be preserved as a souvenir from the event

the clear winner of the Skyscraper Race of the 1930s

000 years to the Jurassic Period

Certificate of Authenticity included

Polished Ammonite Split Pair - 3.913" Cleoniceras ancienthistory and one to be preservedAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 3. 913" polished Cleoniceras fossil from Madagascar. The fossil has been split into a paired set to showcase the beautiful internal chambers of the shell. These internal chambers are called septa and the ammonite could fill them with air in order to float through the ocean like a balloon. After millions of years, they are now