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Here are two links to posts dealing with how to post pictures on Black River Fossils forums.
1. How to Post Pictures on Black River Fossils Forums by ditchweezil
2. How to Post Pictures on Black River Fossils Forums by Daryl
Ok try this link and look in the more pics section.
www.freewebs.com/falcondriver
WOW those are some nice verts. Did you find those at that pit in mansfield?? I ask because they have bulldozed that place and messed it up pretty good. That rain the other day on wed may have done some good. Nice finds.
jax
If I had to guess I would say they are either from a Cretodus crassidens, or more likely a Cretoxyrhina mantelli. Both of these large species can be found in the Austin Group. It's rare to find that many vertebra in association. You might want to go back and see if there are other sections of vertebra in the area. You might get lucky and find the skull and a fully articulated dentition. With vertebra that large, the primary teeth will probably be close to two inches. Keep in mind that the rest of the skeleton may be spread out over an area of several yards. Here is a link you might find useful that shows portions of a large Cretoxyrhina found in Kansas. http://www.oceansofkansas.com/BigShark.html