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Found 84 results

  1. Collection of a new member

    Hello everyone, New member from Minnesota, post my intro in the member introduction forum. The first is my Minnesota fossils. From the Cannon Falls and Rochester area from Ordivician period. The first is a Cephalopod from Rochester. One other from Minneapolis area from Ordivician. Apologies but most of it is unprepped at the moment Will have to post images in multiple posts. The Second will be my collection from Iowa. I have stuff from Montana that I will post in a different thread.
  2. Advice on Prepping Limestone

    Hello everyone, I'm New to the fossil forum. I'm from Minnesota and I've got some nice sized Ordovician fossil from the Platteville formation in Rochester, Minnesota. They're in Limestone sediment. One is a slab that is a filled on both side with crinoid stems (hoping for other rarer parts under the sediment on this slab). The other two are large section on cephalopods. I'm looking for some advice/tips on how I should go about prepping them. Like what kind of tools should I be using and if I should use any chemicals. Any advice/tips would be appreciated. Still fairly new to fossil preparation. Also if better pics are needed I can get them Thank you
  3. Hello, I was wondering if anyone can help identify this bone my family found while digging a foundation for a new home? It was found 13 feet down in a glacial drif in Northern Minnesota. We are quite confident the land has never been touched or altered prior to our digging. Thank you in advance for any help! Happy Thanksgiving!
  4. Decorah Shale rolled fossil ID request

    Found these rolled fossils in the Decorah Shale, St. Paul, MN. Tan colored and measures 2.0 cm long by 1.2 cm wide. The broken piece looks to have piece of Trilobite with it. Thanks for your help.
  5. A couple of rough trilobites for ID

    I am down to my last few trilobites to label from this summer yet. Am open to suggestions on these less than perfect finds: 1. Found in the Galena/ Ordovician of Iowa. Isotelus? If so, is the species obvious? 2. Found in the Platteville formation/ Ordovician of SW Wisconsin. Flexi? 3. Another Galena/ Ordovician but from Minnesota
  6. Is this even a fossil?

    Hello. I found this rock on the shore of Lake Superior in Duluth, MN. I don't have the foggiest idea what this could be. Is it a fossil? I thought if anyone could steer me in the right direction it would be you fine folks. I have more pics I can post if needed, just reached my limit. Apparently I need to compress my images a bit more. Thanks!
  7. Bone, or just a weird rock?

    Hello. I found this on the shore of Lake Superior in Duluth, MN. Wanted to get an opinion or two on whether this is a bone, or just a weird looking rock. I have a few more pics I could post if needed, just reached my limit on this one. Thanks!
  8. 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.
  9. Three Ordovician Unknowns

    these are three specimens collected in Fillmore County , Minnesota this summer. This is Ordovician. Beyond that, these were out of fallen rock and I can not narrow it down any more.I keep looking at them, not really sure I understand what they are. Soooooooooooooo feel free to comment on them. 1. Looks crinoidal but is full of pores. So bryozoan masquerading as a crinoid cup? Or bryozoan covered crinoid cup? 2. All I can think of is 2 brachiopod shells in apposition, but the linear structure in the middle confuses me. The hinge??
  10. Coral ID

    I found this in south central MN near the Minnesota River. Is this a tabulate coral? Is a more specific identification possible?
  11. Found this guy on the in the lake today. Strange impressions on three sides.
  12. Possible Fossil In Lake Superior

    Found in about 3 inches of water off Park Point in Duluth, Minnesota. The oblong stone/fossil is 2" x 1.5". Fossilized coral was found nearby, for what that's worth. The radial lines do connect on both sides of the stone/fossil.
  13. Ancient beach!

    I found it in central Mn it’s petrified the white pieces can’t be picked off by hand. Please help thank you it’s about 14x4 3 inches thick..thank you
  14. A Pregnant Tortoise? Please Help

    Hi I found this in West Central Mn, it is 9inx7in and about 3.5in thick. It appears that what crushed it left a foot print. But looks are deceiving any help would be great. thank you
  15. Edit to add: more likely a phalange This was found in the river at the confluence of the Blue Earth and Minnesota River in South Central Minnesota on August 3, 2018. It appears to me to be an astragalus, the size of that of a white tailed deer, but the shape is not quite right. It matches none of the astragali found in Miles Gilbert's Mammalian Osteology. The "bump" at about the 4cm mark in two of the photos seems like a very distinctive feature, yet I cannot find an identification for this. About our area: This area was, in early American times, the land of the Sioux Indians and the bison. Geologically, this area is very rich in silica. We find a lot of mineralized bones of bison, bos, Odocoileus virginianus, etc. This is the north eastern edge of the great plains.
  16. Soon I will be taking the family on our annual vacation. We plan on leaving central ks, and going almost straight north to the Ashfall fossil beds in Nebraska. We will then head up to Big Sandy lake in Minnesota for a week of relaxation and fishing. I'm looking for any suggestions on rock/ fossil related things anybody here might suggest. Thanks in advance!
  17. Mike @minnbuckeye kindly sent me a package of orthocone nautiloids from his area recently. It's one of the taxa that are sparse in my collection so I was happy to accept the offer. I'm posting them to show what a generous guy he is and to elicit more info about them that might be missing... I don't think that big one in the lower right was labeled - Is it the same as the other large one, Elgin IA?
  18. Any ideas of what this is?

    I found this yesterday in a field in Southern Central Minnesota. The field borders a prairie pothole lake. I also found a small shell impression in a sedimentary rock there in the past. In the photos there are 2 like impressions that continue around the piece. Appreciate your thoughts. Thank you.
  19. Trip to bluff county in minn

    My brother and I decided to do fossil hunting trip in Southeast Minnesota so we pay a visit to Beverly to get a copy of map for 5 dollars. We first hit Masonic park then few more sites before we call it a day. Our goal is to find a trilobite but it is not end of the world if we can't find one. Here's the pics of fossils. Any ID will be helpful. Pic #1 and 2
  20. Admin please move to appropriate topic if needed. :-) Fillmore County, Minnesota, USA - the most fossiliferous county in Minnesota Ordovician Mostly Galena Formation Whispering Winds, Spring Valley, MN I thought I would share some pics of my fossil barn that I have been remodeling on a budget. There are some ideas here that others may be able to make use of. :-) Overview of the outside of the barn. Note the trilobite cutout an pterodactyl toy at the peak. Galena Formation large cephalopod. The hitching rail is nice to use as a comparison to the approximate size this orthocone ceph may have been. The kids love this dinosaur island in the old wooden watering tank. I give fossil tours and host fossil birthday parties. :-) The fossil prep table is open to guests. I have a grinder and brush, a couple of engravers ($7 from Harbor Freight), a dremel tool, and $5 3 magnification visors. Lori turned me onto a mini microscope for less than $5 off Amazon. I also make wire wrapped fossil jewelry here. This wall was created using pallet boards that were stained or washed with paint. Everything is pieced together like a puzzle. I had a couple of gals here wwoofing (wwoofusa.org), trading time for experience and room and board, and they loved doing this creative work. They also put up the reclaimed tin ceiling and I put different reclaimed tin down as wainscote. Note between the 2nd and 3rd window the dried mushrooms being used as shelves and decorations. I'm wanting to add shelves in the windows at the pane lines for more fossil display and greyed wood shelves supported by rusted chain, eventually. I had some 1880s cedar shingles and put them up on two of the walls around some pallet shelving. The pallets are super sturdy shelving for fossils and FREE! Some more pallet shelving and I used some cut off ends for a few papers. I keep my gear in the barn also. Sometimes I use it as a woodworking shop. I like to work in live edge cedar. Kids and adults all enjoy this old aquarium with a black light in the hood as a fluorescent fossil display. I have rock and minerals in it as well. The walk-in door to the hen house is in the fossil barn, I also raise white homing pigeons and ducks. So this pterodactyl is a lead in to the descendants of the dinosaurs. :-) Now to the gardens...
  21. Let's talk brachiopods!

    Hi all, I don't know much about brachiopods beyond general recognition. Since I found that little unidentified echinoid(?) I have decided to prep some of the loose brachs that I found on a recent trip to Fillmore Co., MN. The complete brachiopod here appears to have been attached to another brachiopod shell. So here are my questions. 1. Can anyone identify the brachiopod? (I am assuming they are the same species) 2. Would this be considered an unarticulated brachiopod? 3. I haven't finished prepping the interior of partial brachiopod. I wasn't sure what to call it so I referred to it as the host shell in the photo. It has what almost looks like an open crack. Any idea what might have caused this? There are little black specs surrounding it. Could this have been caused by another brach pedicle? When I was prepping it, it kind of reminded me of a burrow lined with tiny fecal pellets - but my imagination does tend to get the best of me. As always, thanks for your help! @minnbuckeye @Bev @Tidgy's Dad
  22. Detroit Lakes??

    Hello, I will be going to visit kin up in Ottertail county over the 4th of July week. We are coming up from Florida Despite visiting Minnesota repeatedly throughout my life, I know almost nothing about fossil hunting possibilities...my focus has always been on fishing and such, but my 5 year old is high on fossiling (and has quite a collection from Florida already) We are flying in from Florida to the Cities and driving out. IF any of y'all have insight on: 1) locations around ottertail county/detroit lakes 2) locations between Fergus Falls and the Cities 3) locations in EASTERN North Dakota 4) guides or trips we could participate in 5) fossil/dinosaur related sites to see in that part of the country 6) tips on applicable laws we should be aware of ...I would be GREATLY obliged I reckon anything between MSP and Jamestown ND would be reasonable, bu the closer to Fergus, Alexandria, DL, etc., the better! Thanks y'all very much in advance
  23. Brachiopod Star Tattoo?

    While scanning some of the fossil plates I found hunting with @Bev and @minnbuckeye, I noticed this little star-shaped discoloration on one of the brachiopods. Anyone have any idea what could have produced this mark?
  24. I was out hunting near Spring Valley, Minnesota with @Bev and @minnbuckeye the last couple of days. As always, I was looking for coprolites. Mike came across this first piece, sitting loose in a piece of weathered matrix. While we were splitting rocks, we found a virgin layer of the source matrix. When we got back to Bev's fossil barn (everyone should have one), I took a peak under the microscope at two of the loose, irregular objects but couldn't really see much because of the powdery iron oxide coating. When I lightly rinsed them, they revealed these microscopic (calcareous) jack-shaped objects. Similar inclusions were in both objects loose objects. You can see from the broken spine on the inclusion in the lower right that they are hollow. In the other loose piece and those still embedded in the matrix, I can also see random straw-like spines of the same material. I'm not sure if these are coprolites, algal masses or something else. I have seen coprolites covered in powdery iron oxide before. Eventually I would like to free more of these from the matrix so that I can sacrifice one to get a look at the interior. Can anyone identify the little jack-shaped inclusions? The spines may have been quite a bit longer. The only things I can think of are forams or perhaps diatoms. Bev and Mike - What was the name of that cliff again? Decorah Shale? @Carl
  25. Oolites or something more?

    I found this 40 lb chunk of what looks to be oolitic chert with some agate tubes running through it in east-central Minnesota while out agate hunting. Maybe it's considered a cold water agate, but I'm not really sure what that truly means anyways. Either way, I was wondering if there is something more to this structure besides oolites. Maybe some kind of coral or other reef building organism? Any more information would be great. Thanks!
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