Polished Ammonite Split Pair - 3.544" Cleoniceras rockinabox Glyptodons were heavily armored mammals

Glyptodons were heavily armored mammals originating in the Pliocene Epoch three million years ago

The glass coating is very thin

Lake Gosiute and Lake Uinta

reminding us of its incredible origin

The spine of a Tyrannosaurus Rex was subject to tremendous force

Polished Ammonite Split Pair - 3.544" Cleoniceras rockinabox Glyptodons were heavily armored mammalsAmmonites 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