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If you meant Saichan, then Mt. Lavaflow in the regular Fossil Fighters. I'm not sure about Fossil Fighters: Champions.
You can find him at bonemoth
Treasure Lake
Petrified Woods
in sea floor cavern
You can find allo in the rainbow canyon
You take a amargo fossil from dusty dunes and super evolve it.
you can find it at hot spring heights
well you have to find goobs
at hot spring heights
up your but & around the corner
Go to Rainbow Canyon (Red) and you should find him.