I received some Waldron Shale trilos for prep today. As always I made a brief examination of the matrix in search of any other fossils. I came across these, that I think may be cross sections of bugs? I should clarify that I have 0 experience with such cross sections.
If they were, I'd assume the smaller one is the standard C. breviceps but the larger is curious. It's about 1.75 in/4.5 cm across and appears to have tubercles.
What do you guys think, am I way off base or have I found something interesting?