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  1. I am new to micros but I have had at least a cursory look at bulk samples from a variety of sites and ages, mostly Texas and Pennsylvanian. The material from this one Pennsylvanian site in Oklahoma seems so far out of the typical range for quantity of fossils I am wondering what others think. Most of what I have looked at will show me a fossil for every 50 to 100 rocks and I consider that normal. This site has matrix that, when cleaned and screened to remove the finest shale particles (60 mesh) has hardly anything but fossils! The biggest problem with that is deciding what to keep and what to discard, however, if the trade-off is diversity over quantity I might prefer to see less fossils. I found mostly broken pieces of bryozoans but quite a few crinoid parts and not mostly stem sections like I usually see. There are some brachiopods and a few corals but the paucity of mollusks seems odd. In the first batch I took home there were no bivalves, no cephalopods and only one gastropod! Odder still I did find a trilobite genial spine and the tip of a conulariid, things that are usually far less common. There were also a few conodonts or maybe scolecodonts and some ostrocods. I went for another gallon baggie-full and finally got a few more gastropods, very few bivalves and one orthoconic nautiloid. Besides the large quantity of fossils I am curious about what conditions might contribute to that lack of diversity. I can not be certain about the formation but it appears to be in the Deese group. Geologists I have asked say the area is a geological mess so anyone who could volunteer to clear up the confusion is welcome to have a look! It is west of I-35 and south of Ardmore. Below are photos of the matrix after I screened out the finest shale particles. Scale is millimeters.
  2. My sister found this at Mineral Wells the last time she was there. Anybody have any idea what it might be? It's very thin and plate like. Could it possibly be a crustacean shell?
  3. Taking advantage of the good weather and less traffic on the I-95 because of Super Bowl Sunday, I and my husband decided to head south to North Attleboro, MA to explore the Pennsylvanian age plant fossils from possibly the Rhode Island/Wamsutta Formation. We drove to a park near the site and hiked about a mile through the pine forest and reached the outcrop which has expanded into a shale pit. The specimens here are preserved in great condition and are abundant. The pine forest we walked through. The shale pit full of plant fossils. Here's some finds from my trip. I have tried my best to identify my finds. Let me know if I made any mistakes. Neuropteris Scheuchzeri A seed fern specimen that was too big to carry back home. A mish mash of fern fossils and a baby seed fern which I also had to leave behind. Possibly the top of Annularia sp. peeking out in the middle Calamites More calamites and Neuropteris sp. on the bottom side of the fossil on the right. A lot of fossils overlapping. Cyperites sp.?? Pecopteris sp. (This is a chunk that broke off the large fossil towards the end of the post) A closer look at the same fossil with a different angle showing possibly Annularia sp. Cyperites on the lower side Is this some type of micro fossil?? Neuropteris Heterophylla ?? Calamites More seed ferns?? This is a big specimen I brought home with a bunch of fossils on the front and back and it weighed about 10 pounds. Closeups of them are as follows. The clearest fossil on this side is a Pecopteris sp. I assume. I used water to clean some mud off this specimens and noticed a few more fossils peeking out of the rock. Hope you enjoyed my post. Feel free to ask any questions. Happy Fossil hunting!!
  4. connorp

    Mazon Creek Flora

    I've been spending a lot of time lately studying the Mazon Creek flora, and am continuously astonished by the diversity and quality of specimens that can be found. I don't think we see enough plants on the forum, so I figured I would go ahead and share some of my favorite finds. First is a specimen I recently shared, and a fitting start to the thread. This is Crenulopteris acadica, the most common true fern found in the Mazon Creek flora. It has been the most common plant I find, accounting for probably half my finds. Next is a favorite of mine. This is a section of Calamites (probably C. cisti) encrusted by a number microconchids. I always enjoy finding concretions with associations of different species. Last for now is a specimen of the rare seed fern Callipteridium neuropteroides with great coloration.
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