Because Florida didn't exist when diosours where hear
To find fossils, you have to go underground, and also, if you have defeated the elite four then you are more likely to find more fossils.
The most common four types of fossils are:mold fossils(a fossilized impression made in the substrate - a negative image of the organism)cast fossils(formed when a mold is filled in)trace fossils = ichnofossils(fossilized nests, gastroliths, burrows, footprints, etc.)true form fossils(fossils of the actual animal or animal part).
Use the Explorer kit and go underground to dig into the walls, you will find fossils, spheres, shards and other items
You can go to "richardessen.com" and find information there. Or you can go to"www.dui.com/florida" and find similiar information
go into the desert,and find the mirage tower
Go to the underground and get a fossil by mining
To find an orange go to the store or Florida
Brea Tar Pits and Natural History Museum in LA.
go under ground and find fossils
Go to the desert where you obtain the fossils
to find fossils go underground by getting the kit and then you can just find them while digging