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Showing results for tags 'brush creek limestone'.
When cleaning up rocks I brought home today, I found this little piece that I didn't originally target. It's pentagon shape makes me believe it's for sure a fossil. I've never found anything like it, so I feel like I'm about to get an education here. Perhaps part of a crinoid? Whatever it is, I don't have the experience, yet. Also noticed the indented hole on the top. Maybe part of it, maybe not. It's way too centered I think to not be part of it. Underside. It is convex with a small raised ridge along the edge. Sideways view of the
Found this small oddity while breaking apart limestone. The pitted appearance was interesting. The pits also seem to extend the whole way through. They also appear to wrap at a 90 degree angle on the side that isn't broken. The broken side reveals how they go through. I chipped away a little at the matrix, but didn't go too tough to keep from breaking it. Whole specimen with scale: (stacked photo) Showing outside 90 degree wrapped edge with same appearance: (stacked photo) Broken edge showing channels going through the width. Ad
So most of what I find is Metacoceras or Pseudorthoceras, two very common cephalopods locally. I've found a few Solenochilus, but they are different enough that I know what I found right away. This specimen was discovered as a body chamber. I thought Metacoceras, because, why not? Anything of this shape usually is. After some moderate prep, I revealed some more body chamber, but not any suture marks. The venter is oddly shaped as well, with a shallow U shape. It might be crushed, so I didn't pay it too much mind. I also discovered that the body chamber is much larger than any Metac
I've had this specimen sitting in my "I'll get to it later" pile since last year. I've learned a lot about Cephalopods the past year, one of them being the differences between Nautiloids and Ammonoids. Upon re-inspection of this yesterday, I noticed the shell lines, but more importantly the suture lines caught my eye. These do exist here, but I would call them pretty rare to find. Not being an expert, I would consider Wellerites or Schistoceras, but these are based on quick comparisons using a Pennsylvanian Cephalopods of Ohio book I have. I started to clean up the rock using an ai