ammonite necklace | silver pp_neuro and oral and maxillofacial surgeons

and oral and maxillofacial surgeons

invertebrate zoologists

5 billion years ago

Specifically

In three dimensions the molecule folds into an L-shape that keeps the two functional ends roughly 70 angstroms apart

ammonite necklace | silver pp_neuro and oral and maxillofacial surgeonsAmmonite necklace sterling silver The ammonite is the index fossil of the Mesozoic. For over 300 million years they were among the dominant cephalopods of the world's oceans, and a single species often defines a stratigraphic zone with enough resolution to identify rock layers a few hundred thousand years apart. Then, 66 million years ago, the same impact that took the dinosaurs took the ammonites with them. The Science of the Ammonite Ammonites were