On Wed, Dec 30, 2009 at 5:16 AM, Charles L Powell <[log in to unmask]> wrote:
> Its an Inoceramus.  What species I have no idea.  Mesozoic, likely
> Cretaceous in age.
>
> Best,
>
> Chuck
>
> Charles L Powell, II
> Western Earth Surface Processes Team, MS 975
> U. S. Geological Survey


> Dear Conchlers,
>
> I have another fossil shell, this time from California.  It can be viewed
> at: http://www.manandmollusc.net/Mystery_shell_pages/danielM.html

And Chuck should know. Inoceramidae are pretty featureless shells, but
they look Cretaceous to me, probably Inoceramus. It doesn't look
Jurassic (eg Retroceramus), which tend to be mytiliform ie somewhat to
strongly elongate.


Regards
Andrew Grebneff
Dunedin
New Zealand
Fossil preparator
Mollusc, Toyota & VW van fan

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