Clayton formation from Arkansas - Shark Fauna?

[kate_rose]

Hi folks,

 

On our last cross country trip we stopped at a fossil site I had heard of to look for fossils.  It is near Malvern, Arkansas and I am sure it is Clayton formation (Paleocene) based on a publication which specifically describes the site.  It was a horrible day for collecting so we grabbed some samples and are now slowly taking the matrix apart at home.  We are finding a lot of tiny stuff and a few sharks teeth which may be identifiable.  Does anyone know what the shark fauna looks like from that site.  I haven't found any good references for the Clayton specifically and the publication I do have is a faunal survey which compares rough numbers in different groups and deals very little with the specific species themselves.

 

Thanks for any help you can offer.

 

Kate

[Fossildude19]

@kate_rose

 

I found a PDF that mentions Brachycarcharias  and Rhinoptera being found there.

 

Images of Brachycarcharias can be found here. 

 

Hope this helps. 

[dirtdauber]

I think, in addition to Brachycarcharias, you could have Carcharias sp., and possibly Mennerotodus sp. -- George

[ashcraft]

We have the Clayton also.  It was probably much shallower with a river discharge taking place.  We find two species.  The sand tiger, and rarely crow shark. 

 

I have the largest collection of Missouri Cretaceous shark teeth in the world.I think I am up to 16.

 

Brent Ashcraft