While on a fossiling trip in the Horseshoe Canyon Formation Back in April of 2025, We stumbled upon this really pile of weird rocks (Figure 1). It didn't match it's surroundings and had a shiny interior (Figure 2). Some of them even had a few pieces of bone on them. Initially I thought that it was a coprolite, and after doing some research, it did look similar to some coprolites. It wasn't until the next few fossiling trips that my doubts about this being a coprolite grew, as I found more of the same rocks in other places near the…

Cover Image: Albertosaurus tooth Figure 1: Large theropod tooth in many pieces (Likely Albertosaurus) What To Look For? Fossilized teeth are generally shiny and dark in colour, and may be found in one piece or in many smaller pieces (see Figure 1). They are harder to find than most other fossils and depending on which species the teeth come from, your chances of finding them can decrease. In my personal experience, tyrannosaurid teeth are pretty common compared to other types, and are fairly easy to identify. Looking for certain shapes on the tooth, like serrations, can help with the identification…