Fossil ID from W.M. Browning Cretaceous Fossil Park

[Allysaurus]

I took my first fossil hunting trip to the W.M. Browning Park in Mississippi. Didn’t find any shark teeth, but that’s on me for not being properly prepared. I did find a few things, maybe shells, but I’d like to get a second opinion. I don’t have access to a ruler so I had to make do with a pen.

 

Found a lot like this in all different sizes and colors. Don’t know enough about shells to make a guess.

 

 

 

 

This reminds me of coral or sponge, the only one I found.

 

 

 

This is the only one that I think might actually be something worthwhile. Maybe a crab.

 

 

 

Something that reminds me of a crab but is most likely a shell

 

Lastly, this little piece of something 

[Thomas.Dodson]

All of these are oysters. The specimens are worn but based on oysters I know are there you have...

 

1. Pycnodonte convexa

 

2. The pores are boreholes. Based on the thick layered cross section, this is probably a lower valve of Pycnodonte convexa.

 

3. A worn Exogyra, probably Exogyra ponderosa (I haven't seen other Exogyra from that site).

 

4. Another Pycnodonte convexa.

[val horn]

Coco has printable cm paper that you can then use below your fossils

[Allysaurus]

Thanks for the info!