Mirage tower and underground tunnel in the fossil maniacs house.
go into the desert,and find the mirage tower
mirage tower or desert underpass
there is two fossils in Pokemon emerald one you can get in mirrage tower and 1 you can get after you beat the eliet four go to the fossils maniac and he will sent u to the desert underpass where you can find the other fossile (there will be wild dittos :)
A few
You do not " hatch " fossils in Emerald, but you can revive them at the Devon Corporation on the second floor in Rustboro City by talking to a scientist there.
you will find the fossils in the desert. wait until the sand tower appears, then before it vanishes, go inside. climb to the top and choose a fossil. you can only take one.
be quiet
chese
go to the sand tower in the desert from mauvile go up
In Pokemon Emerald, the researcher on reviving Pokemon fossils is located in the Fossil Maniac's house in Fallarbor Town. You can find him by entering the house and interacting with him to revive fossils into Pokemon.
get the fossils go to the Devon corp place an give a guy in there the stones.
I can only find one fossil, defeat the Elite four then go to the fossil maniac and go in the cave, you will find Dittos in the far right you will find a fossil Your cheater, Shadow (the Hedgehog)