Last Monday, I had a dentist appointment in the morning in Dallas. I left afterward and drove a few miles west to check out a new creek. This part of the creek is mapped as Eagle Ford, but the few fossils I found all appear to have come from a red zone in the outcrop that I’ve never seen in an Eagle Ford area before, only Ozan. But in this part of DFW, Austin Chalk is between Eagle Ford and Ozan, and they are miles apart. Experts in The Fossil Forum inform me that this is the Britton part of Eagle Ford.

Here are the ammonite pieces I found. Click the photos to be able to zoom in and get a closer look.

And these two bacculite pieces.

I liked this ammonite imprint in this rock.

This imprint is a heteromorph ammonite.

While this is clearly a fossil, I had no idea what it was. It turns out it is fossilized crustacean droppings, used to line a burrow.