paleonet Invertebrate feeding traces on fossil shark teeth

[Mike Everhart <mike@xxxxxxxxxxxxxxxxxx>]

All,
A small number of fossil shark teeth from the Late Cretaceous marine 
deposits in Kansas (Cenomanian-Coniacian) have what appear to be feeding 
traces (radula?) of a small invertebrate (gastropod?).  I am curious to 
know if others have observed similar damage to shark teeeth, and to know 
what might be 'feeding' on the enamel of these teeth.

Most of the teeth have been identified as /Cretoxyrhina mantelli/, which 
is generally considered  to be the largest shark of the time in the 
Western Interior Sea.

Pictures of a /Cretoxyrhina/ tooth with feeding traces are shown here:
http://www.oceansofkansas.com/Temp6.html

Regards,

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