Re: paleonet More on KY mystery fossil

["Maurizio Gnoli" <gnolim@xxxxxxxx>]

Dear all,
As fa as it concerns the mystery fossil under siege the most likely seems to
me consider it an ?annulated squeezed nautiloid to which morphological
features shown in the images, even if siphuncular features remain not so
clear.

Maurizio

----- Original Message -----
From: "Brandon Nuttall" <bnuttall@kgs.mm.uky.edu>
To: <PaleoNet@nhm.ac.uk>
Sent: Monday, June 17, 2002 2:28 PM
Subject: paleonet More on KY mystery fossil


> Folks,
>
> Thanks for the responses to date. A bit more information on the Borden and
> New Albany formations.
>
> The Mississippian Borden formation consists of a series of red-green-gray
> shales and siltstones deposited generally in a prodelta setting. The Nancy
> Member, the most likely unit from which the specimen is derived, is
> primarily a greenish-gray to light olive-gray silty shale with few fossils
> (mostly scarce crinoid columnals and a few bryozoan impressions).
>
> The Devonian New Albany is a thin laminated, fissile, black carbonaceous
> pyritic shale. Fish plates, conodonts, a few brachiopods, and plant
> fragments are the most common fossils. In general, the New Albany is
> generally considered to have been deposited in an anoxic basin. The
> equivalent Ohio shale in the Appalachian Basin eastward seems to be much
> deeper water, while the Chattanooga shale to the southwest along the
> Cincinnati Arch seems to be shallower water.
>
> Nautiloids are possible in both formations, but are very rare.
>
> Currently the responses seem to favor:
> 1) an orthoconic nautiloid that has been squished
> 2) an arthropod (guesses include eurypterid and cruiziana)
>
> Brandon C. Nuttall
>
> BNUTTALL@KGS.MM.UKY.EDU Kentucky Geological Survey
> (859) 257-5500                  University of Kentucky
> (859) 257-1147 (fax)                    228 Mining & Mineral Resources
Bldg
> http://www.uky.edu/KGS/home.htm Lexington, Kentucky 40506-0107
>
>