> >The Smithsonian has, or at least it used to have, some of
 the giant coiled forms on display. < <
 
Yes they still do. I was just down there on friday afternoon walking through
the exhibit on my way to class and stopped to take a look (like I do every day
*grin*) They have three large (like 15in in dia) coiled ammonites but they are
unidentified. They also have a large display (one of the nicest I have seen
btw) of Pliocene mollusca. They also have a comparison with a few of the
recent floridian mollusks. There is a model display of what the living seas
looked like (cenozoic I believe, I haven't payed attention to the cards). And
there is a really kewl school of the uncoiled squid-like cephs (plastic) in
the middle of the recreated reef.
 
 I believe that they have some of the 8footers+ in the paleo collections but I
have never seen them.
 
-Sarah Watson