While out on the last fossiling trip of 2025 in the Horseshoe Canyon Formation, we came across this really long bone. Anything this big is usually the leg bone of a hadrosaur but it was curved way to sharply for that. From the picture it looks like it could be a rib but right under the top layer of rock, it seems to be bone extended outward from there. However this is just a guess since we can't dig to actually see if it is or not.

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…