paleonet Sunday Paleo-Mystery

[Mike Everhart <mike@xxxxxxxxxxxxxxxxxx>]

All,
The Sunday Paleo-Mystery should be an easy one for someone... hopefully....

Last week I found a fairly large slab of* dark red "sandy shale"** 
sitting on the prairie grass at the edge of an exposure of Smoky Hill 
Chalk in southeastern Gove County, Kansas.... where it obviously did not 
originate.

**There is a small (1.4 mm) vertebra exposed on the surface of a slab.
http://www.oceansofkansas.com/Temp5.html

****The matrix is filled with small, shiny white fragments of bone or 
scales, etc. Little is identifiable. *** *

Any ideas as to where it came from? 

I'm guessing the Permian red beds of Texas, but have never been there.  
I'm assuming that someone unloaded the slab while repacking their 
vehicle and forgot to put it back (or got tired of lugging it around).

Regards,

*Mike Everhart
Adjunct Curator of Paleontology
Sternberg Museum of Natural History
Fort Hays State University, Hays, KS
www.oceansofkansas.com
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