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I’d love any help on figuring out what the heck these are. 1sr fossil: Mineral Wells Fragment First up is from Mineral Wells Fossil Park. Tons of crinoid fossils found and other small Pennsylvanian fossils. This fragment has symmetrical scales/sections visible on both the upper and lower side and is 1/2” in size. ********* 2nd fossil? Burnet County, TX next one is 1.5” long, 1/2” wide. I find a lot of oyster fossils in this stretch of creek. Fossils must wash down from upstream banks and may not be from the same era. Found this egg shaped fossil with an opening at the top. Maybe a sea sponge?

Last week my friends and I stopped by Mineral Wells in Texas to do some fossil hunting and it was really fun! However, I'm not familiar with this type of fauna and I was wondering if anybody could help ID them for me. I think I got a decent representation of what is available at the site but there's definitely other fauna there that I didn't spot. The first group are bryozoans and they have this really cool texture on them. How easy is it to identify them to genus or species level? The second one on the first row was also really interesting. It's flatter but I'm not sure if that's the preservation and not what it looked like in life. The first one on the second row was really interesting as a bryozoan colony seemed to wrap around a crinoid stem! The second group are crinoids! I hadn't realized they were so diverse, although they were the most common fossil I encountered by far. This is the cross section of the first row. This is the cross section of the fourth row. The third one has a really neat pattern on it on the outside. And finally, the fifth row has a crinoid base(?) and what might be a small crinoid impression? Not entirely sure. The third group are shells. The variety of shapes was really cool. This first row are flat and rounded. Are these clams? These first two on the second row are extremely flat but have these knobs on the shell. These first two on the third row are very simple with a general slope. The last two on the second row have a really neat shape. They're concave on the inside as well. And the last two on the third row kinda remind me of little hats haha I also managed to find some snails(?). This first one was particularly tiny This larger one is unfortunately crushed. And these last two shells are super thin. The first one is a scallop(?) and one of my favorites shells I recovered because its complete with both halves! This next one is what I think is a nautiloid shell. Sort of reminds me of ones like baculites. Onto other inverts, I found a spine from an echinoderm. Sea urchin? And I was pretty excited to find two pieces of trilobites! I only found the hind parts but one of my friends found a head which was cool. Now to unknowns. This first one reminded me of a hybodont tooth but I wonder if its a crinoid piece. There's some texture on it that looks like the ones on the stem fragments. This second looks like a bryozoan but I wanted to make sure. These third ones have some really interesting shapes and texture and I have no idea what they are. This fourth one is a long fossil with a groove. There's a texture inside the groove but again, not sure what it is.

Finally got a good picture of another find from our Mineral Wells Fossil Park outing. Looked at other pictures of Petalodus shark teeth, and it has similar features. It looks like a tooth to me....but I don't know.