Andrew,


> According to Michal Kowalewski (Virginia Tech, Blacksburg),
> radiocarbon
> dating shows that beach shells are commonly one to several
> thousand years
> old, having been buried and reworked many times.

Do you mean beach shells in general, or those on eastern U.S. beaches in
front of cliffs with fossils? But if it's a "fossil", it would be old, by
definition, anyway.

Aydin