Hi
I believe Gonioceras is an ammonite (ammonoid?), not a mollusc.  This evening I
will ask my husband, who is well-versed in such matters to elaborate more fully.

"Kevin S. Cummings" wrote:

> I received this inquiry this morning.  Any help?
>
> From: [log in to unmask]
> Date: Sat, 21 Aug 1999 13:59:49 EDT
> Subject: devonian seashells
>
> hi---- my daughter gave me a beautifully mounted plaque consisting of three
> seashells for my 76th birthday. The card enclosed with the plaque says
> "gonioceras devonian , moracco" . I have not been able to find gonioceras on
> line or in my dictionary. can you help?
>
>                                        thanks
>
>                                        marvin cohen
>                                        glenwood springs co
>
> Kevin S. Cummings
> Illinois Natural History Survey
> 607 E. Peabody Drive
> Champaign, IL 61820
> [log in to unmask]
> http://www.inhs.uiuc.edu/cbd/collections/mollusk.html