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  1. I had brought home a piece of Galena/ Ordovician matrix that had some unidentifiable critters hidden in the rock. Time was taken to extract what I am sure is a cephalopod from the matrix. Haven hunted this formation for years, I can honestly say this is the first cephalopod found exhibiting its curved features discovered by me. Attempts to ID the fossil have been fruitless, so I am asking for help! The fossil fractured during its prep revealing what I see as a siphuncle. Here is the repaired specimen:
  2. I was busting up a few rocks from the Ordovician/ Galena of SE Minnesota when I noticed this unknown peeking out at me. It would be nice to understand what it is so a decision as to whether to expose more of it can be made. Thanks! By the way, it is 6 mm in length. Mike
  3. Over the weekend I took a quick two day scouting trip up into the Ordovician of Iowa and Minnesota. One of the around dozen sites I visited was a roadcut in Winneshiek County, Iowa in the Galena Group, probably Dunleith Formation. I was in a bit of a rush and only collected here for 20 minutes or so, but it seems like a very productive site that I will certainly visit again. A three-dimensional graptolite (Diplograptus?) Liospira sp. I picked this piece up for the nice cephalon (Calyptaulax I think), and was pleasantly surprised to find at least
  4. minnbuckeye

    New Gastropod for Me

    I stumbled onto this cute tiny gastropod from the Galena/Ordovician in Minnesota but am having difficulty with its identification. Strophostylus textiles is listed as a possiblity in Minnesota Fossils and Fossiliferous Rocks by Robert Sloan. What do you think?? Mike
  5. Last weekend I had the opportunity to spend a few hours collecting in a quarry in northern Illinois that exposes most of the Galena Group (Late Ordovician). There was lots of fresh rock to hunt through, and it was a good and productive trip. As usual, lots of gastropod molds were found. Hormotoma sp. Liospira sp. Sinuites sp.
  6. Echinoderm identification help please! Polished cross-section in the Kimmswick Limestone (Late Ordovician: Katian; Missouri, USA) used as facing stone at Missouri Botanical Garden. Possibly the paracrinoid Implicaticystis (once known as Comarocystites)? Specimen is ~25 mm across.
  7. I collected this trilobite pygidium in the Galena Group (Upper Ordovician) of Illinois. I don't immediately recognize it, especially since it is just a mold. It is fairly large. My best guess is Isotelus but I was hoping one of the trilobite experts here might have a better idea. Thanks for any help.
  8. I found this specimen in the Galena Group (Middle/Late Ordovician) of northern Illinois. Seems familiar but I can't place it. Any thoughts?
  9. UPDATE: These seem to just be weirdly incomplete cross-sections through ordinary cylindrical meroms. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ This weekend in the Kimmswick Limestone in eastern Missouri (Pike County) I saw plenty of receptaculitid algae, mostly of genus Fisherites. But one cross-section has a feature I've never seen before: a fringe of what look like erect spines on the external surface. Can someone point me to a reference for understanding this feature functionally and/or taxonomically? I've looked in the usual places but I d
  10. Last month I was able to make a brief trip to hunt the Ordovician rocks of the Upper Mississippi Valley. The stratigraphy up here was very confusing to me at first since a lot of the units are very similar looking. To that end, I am endeavoring to include more site pictures in my trip reports of this area, in the hope that it will assist others when collecting this area. My first stop was in SE Wisconsin. Unfortunately the right of way was much narrower in person than on Google Earth so I did not feel comfortable collecting here. But it was a great site to observe the three lowest
  11. minnbuckeye

    Local Ordovician Trip

    It has been 7 years now since I became hooked on the "fossil thing". My hunts seem to creep a little further from home with each passing year. Greener pasture syndrome. So a few days ago, I purposely started my adventure close to home. Here are a few finds from the Ordovician. @ClearLake Let me start with a few unknowns: This last one could just be a squished brachiopod, but seems to be a coiled organism. IDed as Trilobite eye, probably Isotelus The pygidium pictured came from a new spot I tried, expecting to find
  12. This weekend I had the opportunity to spend a couple hours hunting in the Galena Group (Upper Ordovician) in northern Illinois. The Galena around here is mostly massive dolomite, so most fossils are preserved as molds. Mollusks dominate the fauna, especially gastropods, although other interesting specimens crop up from time to time. Burrows A large orthoconic nautiloid Fisherites are fairly common in some beds, although extracting complete specimens is challenging. Thaleops sp. Some better gastropod examples
  13. minnbuckeye

    Wasting Some Time

    I have been good friends with a gentleman from Kansas for many years now and have seen him go through three kidney transplants at Mayo Clinic. He is here for another surgical procedure and is staying with my family. I took him over for a post surgical check up and had a few hours to waste. So off to look at a few rocks south of Rochester, Mn. until Ed was finished. A maclurite was soon spied weathered in a slab of rock. When a fossil hunter sees this, take the time to split that rock. So I did and these Maclurites were exposed. A short trip, but fun nonetheless. Mike
  14. Today I joined a local club on a trip to a dolomite quarry (Ordovician, Galena Group) in northern Illinois. This was the first trip of the year as the rest have been cancelled. The quarry was quite massive, so social distancing was not a problem. We hunted in rock piles in the middle of the quarry (very far from the high walls) that were scheduled for crushing. It was quite a beautiful place. Besides some hammering, all I heard were large birds that were circling above. The fossils found here are pretty standard for the Ordovician rocks in the area. The Galena Group here seems to b
  15. Mike from Red Wing

    Trilobite? Lacking Distictive Features

    The fossil was collected on the Deer River near Spring Valley, Minnesota. It is shaped like a trilobite, but it doesn't have any distinctive features, as the shell is mostly smooth. It somewhat resembles a shark tooth, but were no fish at this time. The width of the fossil is about 17 mm.
  16. minnbuckeye

    Totally Odd Fossil? or Burrow????

    I picked up this rock while exploring a few weeks ago and noticed what looked to be an imprint of a crinoid stem in the rock. For whatever reason, I threw it in my bucket. At home, upon further examination, I came to a conclusion that this was not a crinoid imprint and was perplexed as to what it was. As you can see above, there was a big crack in the rock, self induced in order for me to see deeper into this. Here is the specimen after the rock was chipped away. The "lines" fade away as one goes deeper into the matrix until the surface becomes smooth.
  17. Last week was a tough week as I tried to stay home as much as possible. On top of the Corona situation, a snow storm dumped 9 inches of heavy wet snow on us. The rain/ snow line was only 30 miles south of us so after looking out on the white landscape for days, I was ready to see green grass again. A decision was made to trek south for the day and enjoy spring again, but with no human interaction. I had wanted to look at a road cut that was discovered on Google-earth this winter and thought this would be a great opportunity. So I was up and on my way early the next morning, leaving the snow ju
  18. minnbuckeye

    Unknown Ordovician Tube

    Here is a tubular structure that I am unaccustomed to finding in the Galena, Ordovician rocks of SE Minnesota. All thoughts are welcomed!!!
  19. Due to an upcoming order from our Governor to stay at home, I took the opportunity to fossil hunt last Sunday afternoon before it begins. The ground was white with an unexpected snowfall overnight when I left the house but soon melted. My goal was to look at road cuts for rock slides from the winter's freeze thaw cycle. Digging and splitting would be tough with frost still in the ground. The first spots searched were Ordovician, Galena. Here are a few representative fossils from the Galena of SE Minnesota: From there, I slipped over the border
  20. minnbuckeye

    Graptolite?

    Locally, graptolites are very common in the Maquoketa/ Ordovician rock. They present themselves as 2 dimensional creatures on certain bedding planes. Below the Maquoketa is our Galena. It has graptolites but uncommon. Again, they present themselves as 2 dimensional. The "unknown" specimen from the Galena, presented today, is obviously 3 dimensional and I venture a guess that it is a Graptolite. But I thought I would seek opinions in that I have seen thousands of local graptolites but never one that is 3 dimensional. Could it be something else??
  21. minnbuckeye

    Beat up Trilobite ID

    On Sunday, I saw this trilobite just sitting there on the face of a cliff. Unfortunately part of this "roller" is missing. I do not do well with IDing rollers so am asking for help!! My guess is Anataphrus vigilans but the specimens I have found have been in the Maquoketa.
  22. minnbuckeye

    Ordovician Unknown

    I need help with another specimen that popped out of the Ordovician matrix I was busting up last week. I have NO clue as to what this is, or if it is even a fossil. I have split literally a ton of matrix on this roadcut and have not seen this before:
  23. minnbuckeye

    Crinoid stem but is there a Calyx?

    I have looked at this piece for about 1 week and my opinion changes from a crinoid stem and calyx to a crinoid stem and broken gastropod and back. So I will now defer to anyone visiting this post to leave their opinion seeing I can't make up my mind. I have both specimens marked.
  24. minnbuckeye

    Galena Gastropod ID

    This Ordovician gastropod is like no others that I have found. Any knowledgeable members able to educate me?? Maybe a strange maclurite?? Love the hollow crystalline interior.
  25. Does anyone know where I could find or purchase "A preliminary stratigraphic study of the galena group of winneshiek county, iowa" ?
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