Polished Ammonite Split Pair - 3.544" Cleoniceras rockinabox refining evolutionary traits to be

refining evolutionary traits to be handed down to their deadly descendants

Lake Gosiute and Lake Uinta

reminding us of its incredible origin

The spine of a Tyrannosaurus Rex was subject to tremendous force

This specimen is a split pair septarian nodule from Morocco

Polished Ammonite Split Pair - 3.544" Cleoniceras rockinabox refining evolutionary traits to beAmmonites 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