Polished Ammonite Split Pair - 4.848" Cleoniceras carboniferousplant 's firehouse

's firehouse

81" fossil fragment of the Dimetrodon's iconic spine

their massive size would have placed them outside most predators' capabilities once fully grown

Some teeth will show more natural wear than others

Polished Ammonite Split Pair - 4.848" Cleoniceras carboniferousplant 's firehouseAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 4. 848" 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