Ammonite necklace

Ammonite is a creature that appeared 400 million years ago. Produced in the early Devonian, flourished in the Mesozoic, After carrying out small extinctions again and again, he eventually joined the dinosaurs, Extinct at the end of the Cretaceous. What is the concept of 400 million years? The landslide has been cracked countless times, The geomagnetism is reversed thousands of times. Only in the sand and gravel that used to be the seabed Sneak into the old days of Ammonite prosperity. Ammonite once existed in an era, it was long, There is no time for human existence. And humans, Also from the bottom of the sea.