Cat fever at the end of the Age of Affluence.
This fossil complex might be currency of an ancient country at the end of the Age of Affluence. According to large documents, people at that time had a very fanatical love for cats. So they printed the cat's totem on the coin, and this coin has been excavated in many places across that country. Another kind of coins of this fossil complex is printed with a daily necessities of cats, which is a container for them to eat or excrete. However, our experts are still researching why this container is three-legged.