Re: paleonet Invertebrate feeding traces on fossil shark teeth

[Patricio Domínguez Alonso <patricio@xxxxxxxxxx>]

Dear Mike,

As the traces are not going into the basal plate seems to me that the they should be done in the living shark and not postmortem. Have you consider microwear analysis? These could be "feeding traces" of sharks on other animals as well. Just an idea.

Patricio Dominguez

----- Mensaje original -----
De: Mike Everhart <mike@oceansofkansas.com>
Fecha: Martes, Septiembre 13, 2005 3:51 am
Asunto: paleonet Invertebrate feeding traces on fossil shark teeth

> 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
> 
> 
> 
> 
> 
>