The fossil is a spiriferid brachiopod, most likely from the Paleozoic (Devonian?) of Michigan. Allen Aigen [log in to unmask] -- Avril Bourquin <[log in to unmask]> wrote: Hello Conchlers, I have another Mystery Page set up for a gentleman with a fossil from either Michigan or Florida. This page can be viewed at: http://www.manandmollusc.net/Mystery_shell_pages/ed-mystery.html Thanks in advance for any and all help.Avril Bourquin Avril Bourquin PO Box 366 Invermere, B.C. Canada V0A 1K0 Phone & Fax: (250) 342-7224 Email: [log in to unmask] WebSites: http://www.manandmollusc.net http://www.directory.manandmollusc.net/molluscs/