If it was not your starter, at hot spring heights. If it was, at treasure lake.
You should evolve it into a Lugmos.
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
You can find allo in the rainbow canyon
in sea floor cavern
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
up your but & around the corner
at hot spring heights
Go to Rainbow Canyon (Red) and you should find him.