Ft. Worth Creek Finds

[TXTechdad]

Hi,

I registered for the forum well over a year ago but due to other things occupying our time have not had time to post anything yet. In the mean time, we have been going on short fossil hunting trips in the Dallas -Ft. Worth area and there's a bunch of items we found that we know or think 'are something' but do not know exactly what.

Here's the first two. These were found in a creek in Ft. Worth. The first one looks very much like the gastropod Trichotropis Sumardi on Lance Hall's gastropod page. Here's ours:

The second one is different but could also be some form of gastropod? What intrigues me about this one is are the black 'dots' which appear to be another kind of material, kind of what I would expect some fossil shark tooth to look like (in terms of color and material). Could it be some kind of coprolite?

This is my first post with images - hope they make it through

I have a bunch more to post; Would it be recommended to create a separate post for each item (or set of similar items)?

Cheers,

Sergej