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