AMMONITE QUESTIONS ANSWERED: SHELLS, SPIRALS AND ANCIENT TIMEKEEPERS 0 ▲ FOSSIL HUNTRESS 2 hours ago · History · hide · 0 comments A spiral in stone can stop you in your tracks. Follow its curve and the questions arrive almost immediately. What lived inside? Why the ribs? And how can a shell tell us anything about the age of a rock?Ammonites reward that curiosity. Their fossils preserve clues to ancient animals, vanished oceans and the passage of geological time. Here are ten questions to start your exploration, with a No comments yet. Log in to reply on the Fediverse. Comments will appear here.