Harry,
Thanks, but this time I'll pass. The site in question is about as far as you
can get from Tuscaloosa and still be in Alabama: a long drive for a site
that may not even have fossils of its own. And the Survey's collection
already has a specimen or two of Exogyra costata; it's not a rare shell. But
don't let me stop you!
Andy
Andrew K. Rindsberg
Geological Survey of Alabama