Polished Ammonite Split Pair - 3.544" Cleoniceras rockinabox 000 ft at speeds greater

000 ft at speeds greater than Mach 3

The glass coating is very thin

reminding us of its incredible origin

the first trilobites emerged in the fossil record thanks to this evolutionary event

It measures 21

Polished Ammonite Split Pair - 3.544" Cleoniceras rockinabox 000 ft at speeds greaterAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 3. 544" 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