Re: paleonet Fossil id help requested Update

[<friedmanhvj@xxxxxxxxx>]

Indeed, conulariids occurr in several outcrops in
Texas. Especifically in the Finis Shale (Upper
Pennsylvanian, Virgilian) where they can be picked up
practically by the hundreds. These conulariids are
rather small compared to other specimens found in
other parts of the country (i.e. Oklahoma). They have
been i.d. as Paraconularia crustula White. 
Other outcrops in Texas, produce also conulariids,
again rather small specimens (1.5''length) and they
are rather isolated occurrences.
It is hypothesized that the rather small size of these
conulariids is due to the dysoxic and otherwise
stressed environment in which they lived. 

Virginia Friedman
UT DALLAS
--- Roy Plotnick <plotnick@uic.edu> wrote:

>   First, I'd like to thank everyone who responded, I
> really appreciate 
> it.  The suggestions I have received are
> machaeridian (my first guess), 
> conularid, in particular an external mold (my second
> guess and the majority 
> opinion), and a rostroconch (my third guess).  I
> think I can go with the 
> conularid external mold.  This would make it the
> only conularid we have 
> found at this locality, to go with a single
> fragmentary cephalopod and one 
> semi-complete trilobite.   Anyone know of other Late
> 
> Pennsylvanian/Carboniferous conularid occurrences?
> Sedond, several folks asked for a scale;  a photo
> with a 1 cm sclae is 
> at:  
>
http://tigger.uic.edu/~plotnick/LoneStarQuarryFossil2.jpg.
> 
> Again, my thanks - Roy
> 
> 
> 
> Roy E. Plotnick
> Professor
> Department of Earth and Environmental Sciences
> University of Illinois at Chicago
> 845 W. Taylor St.
> Chicago, IL 60607
> plotnick@uic.edu
> office phone: 312-996-2111     fax: 312-413-2279
> lab phone: 312-355-1342
> web page: http://www.uic.edu/~plotnick/plotnick.htm
> "The scientific celebrities, forgetting their
> molluscs and 
> glacial  periods, gossiped about art, while devoting
> themselves to 
> oysters  and ices with characteristic energy.."
> -Little Women, Louisa  May 
> Alcott
> 



		
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