Tone Dials - Tumblr Posts

This made me think of something interesting.

As it says in the chapter dials are carcasses- fossils if you will. They can store certain things like wind and sound.

But what are the carcasses of? I mean some of them circularly shaped like a snails shell- especially tone dials. So maybe they’re the carcasses of den den mushis. If they are, that means there were other similar species that used to be able to record smell and impact that have probably gone extinct.