Do you realize that coelacanth is an order of bony fish, not a species.
Repeating the subtitle, the modern coelacanth is an extreme deepwater marine fish.
I think that any creature living or having lived in that environment is highly unlikely to make it to any fossil deposit that man can see. Why? Because we find marine fossils when and where the seas have transgressed up onto the continents.
Further reading on preservation of deep marine sedimentation -
Mlange
To the geologists - Please shoot me down if I'm wrong.
Moose
™ Version 4.2