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Hi What are people's thoughts on these three small verts from Hell Creek. The one on the right of picture 2 has rounded ends--if I am not wrong, that is a sign of it being a crocodile? Any thoughts on the other two? I can get extra info from the seller if needs be Cheers

Being stuck at home has given me the opportunity to rummage through my fossils. I started with my trilobites. Weeded out three containers of Isotelus partials to give to the local sand pit. But I found 3 unidentified trilobites tucked in with the Isotelus for some reason.. Any help at IDs is appreciated. 1. Gerastos?? I think this was a gift to me many years ago. 2. Thaleops? Though I considered Illaenus or even Bumastus. The matrix looks like the Platteville, Ordovician 3. I have such difficulty with "rollers"! Thaleops? Matrix looks like the Galena, Ordovician that I frequent.

I have a piece of Coconino sandstone with tracks from a three toed critter I'd appreciate some help identifying. Thank you.

Hey guys, Just bought this set of Trilobites as a gift. There are two halves which split the tree in half horizontally. Not sure if this was on purpose or not, but it seems to be unique -- whether that's a good thing or not. To be honest, I know very little about fossils, but what I was told is that this would usually be fairly expensive, but was damaged in transit, so I got it for seems like a steal. The damage doesn't bother me, because it doesn't touch the fossils. They are each about the size of a man's hand outstretched. From my research, I found that since I can't see the tops of them, I can't really identify them properly myself. I can't tell what their eyes look like, if they have spikes, etc. From what I found, they look most like Proetida or Ptychopariida, but then after looking into those more, I found that those usually only reach 3-6cm on average, while the ones I have are closer to 20cm. So then I was thinking they might be Asaphida, but they don't have the large flat Pygidium that seems typical for them. Now I'm thinking they might be Corynexochida due to their Cephalon shape and the small spikes protruding from the pleural lobes, but of course, since I can't see the tops, this is still hard. I really only have a few hours of research to go on, I'm sure there are some with much more experience in here. Any ideas? Thanks guys! P.S. Anyone know about how much a piece like this would go for undamaged?