What are the dig sites in fossil fighters?

you go to Beth and ask to go to any of the dig sites

Hias I recall you have to pass an exam to open a new dig site. An exam is at the tournament place, there you first do the fossil cleaning exam, then the fight(s)GreetingsC

Moles secret tunnel -Noah Fredrick

first you press the right or left button to look for fossils then you go in front of a little green dot on the sonar scope then you press a and if it didnt come up try again

For Dusty Dunes you have to beat the semifinal match and for Petrified Forest you have to get the quest for a sardinasaurus fossil.