Polished Ammonite Split Pair - 3.948" Cleoniceras apollo The result is a marrow

The result is a marrow matrix exhibiting incredible detail

including the first industrial-scale plutonium production reactor and the first atomic bombs

This specimen is a rare 3

California

000 years old and comes with a display stand and certificate of authenticity

Polished Ammonite Split Pair - 3.948" Cleoniceras apollo The result is a marrowAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 3. 948" 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