Polished Ammonite Split Pair - 4.455" Cleoniceras dendrite 5 billion years old

5 billion years old

ISBN-10: 1916039456

Archaeopteryx lithographica - Archaeopteryx is the first feathered dinosaur known to scientists

Please Note: Sizing on this specimen refers to the amber itself

634" Viking arrowhead mounted as a pendant necklace

Polished Ammonite Split Pair - 4.455" Cleoniceras dendrite 5 billion years oldAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 4. 455" 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