Geastrum ?.

This mushroom looks like horseshit the first time that I saw it on the lanes near the Eucapliptus forest.
It can be small but it can also grow big.
The outside cover, the fungus skin is hard and dark brown but is side it is like camel colour dusting powder.
To show you the varieties I have made several images.
Small ones like a goat dung and the bigger ones like a part of the horse turd.
To put the stones on it you can see how strong the puff ball or I don't know what is.
Maybe you can tell me !