Polished Ammonite Split Pair - 4.666" Cleoniceras mosasaur NASA disposition paperwork received with

NASA disposition paperwork received with this item indicates this particular tile was removed after the Challenger’s sixth mission (STS-41-G) which flew on October 5

which tended to focus on the beauty of the finished object as opposed to stabilizing and preserving the material

Even after the Statue of Freedom was mounted at the apex of the dome in 1863

schooling fish with K

Polished Ammonite Split Pair - 4.666" Cleoniceras mosasaur NASA disposition paperwork received withAmmonites are an extinct group of cephalopods that entered the fossil record 400 million years ago. This specimen is a 4. 666" 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