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Found 143 results

  1. Brachiopod ID, + Bryozoan?

    Hello all. I'm an amateur fossil hunter, so this might not seem that exciting, but I was really happy to find these four rocks with what I assume are brachiopods in them. These were found on a small, rocky beach in western Michigan (so rocky that most people would probably prefer not to swim). The specimens vary in size quite a bit, with the largest one being about 2 cm (this one is also one of the most well-preserved). In one of the rocks I see some lacy-looking material which I believe is probably a bryozoan frond, but I'm not too sure, so if anyone could confirm that too, I'd appreciate it. In the last few pictures, I wet a couple of the specimens themselves to hopefully make them easier to see. I hope these pics are good enough. If anyone could give me info on what exactly these little guys are, it would be greatly appreciated. Thanks!
  2. Maybe fossil

    I recently dug this rock out of a pile I have next to my house near Grand Rapids MI. I know I put it there many years ago but I can't be sure it originated from this area. There are a lot of things I don't know about this thing. I posted it on a rock forum and showed it to some rock hound friends and they all seem mystified. Some of them suggested that it could be a fossil. Maybe a type of sponge? That could have been a wild guess but I'm hoping someone here can confirm or deny that for me. It seems to be all quartz of one sort or another but the interesting thing is that it seems to be made up of pieces like a conglomerate but with almost no material between them. It reminds me of monkey bread, if you know what that is. Also, a lot of the pieces are solid on the outside but porous and sort of grainy on the inside. Enough rambling! Please let me know what you think. And let me know if you need any more photos or other information. Thanks!
  3. Possible Soft-Body fossil?

    Hey all, I live in the Oakland county area in the lower peninsula. A lot of the fossil bearing rocks I find around here are usually red-orange colored limestone. To my knowledge a lot of these rocks were dropped of by the glaciers from some time ago. Usually in red limestone I find corals, shells, imprints, etc. This specimen didnt have any of that. I broke it open along one of it's fault lines and found this dark red form. I can roughly see it forms an oval shape, and going outward from the center there appears to be a change in coloration from red to brown to light brown. This kind of reminds me of what a soft bodied concretion fossil could b, but I'm not sure I've ever found one. Would anyone know about this? I can take more/higher quality pictures too. Thanks! Brian
  4. Maybe a coral or something else?

    I picked these up on my last fossil hunt. They were found in west Michigan too. I’ve never found something like those before and thought they might be some kind of coral but I don’t what from. I can’t find anything that looks like it either so any help would be great!
  5. Mammoth Tooth? Horn Coral? Something Else?

    Hello all. This is my first post. Today I was fossil hunting on a small beach area off the side of a road, where there are a TON of rocks. I found quite a few great finds, and this one was my largest. I'm not an expert by any means, and at first I thought this was some kind of horn coral. I posted a photo on Reddit, and one person thought it may have been a trilobite. I didn't think this was very likely, but now that it's been brought up I can kind of see it. The other suggestion was a woolly mammoth tooth (Mammuthus primigenius). This fossil was found on a small beach in western Michigan. I included a photo of the back of the rock since it was suggested to get it from all angles, though there was nothing special on the back so that's why one of the photos just looks like a normal old rock. If anyone can confirm any of my three answers, or give another option entirely, it would be greatly appreciated. Thanks!
  6. Found this stone awhile back, very smooth and round, and perfectly shaped like an egg! I live in the Thumb of Michigan, and found this in the rocks by some shrubs. All the other rocks were definitely not like this. Any ideas what it actually could be?
  7. I found this in a gravelly area where I usually find a lot of crinoids and shells and coral. I also find many goniatites in this area as well. It’s in West Michigan near Holland. I’ve never seen anything like it before though and I’m having trouble figuring out what it’s even from.
  8. New to fossil hunting, no idea what these are!

    Hi everyone! I am brand new to fossil hunting and have two new fossils that I found today. I know pretty much nothing about them and I’m hoping someone can tell me what they are! They were found on the beach at Lighthouse Park in Port Huron, at Lake Huron/the mouth of the St. Clair River. I’m a little more interested in Fossil #1 (I labeled them in the photos), so there are a few extra photos of that one. Any info at all would be greatly appreciated, I am dying of curiosity!
  9. Escanaba man ‘digs’ fossils Deborah Prescott, Daily Press, Escanaba, MI https://www.dailypress.net/news/local-news/2020/03/escanaba-man-digs-fossils/ Yours, Paul H.
  10. Horn coral +

    This horn coral is most likely from the fossil area of Alpena, Michigan per the man that gave it to me. It was covered with very hard dirt. After much cleaning and trips to the ultra sonic machine I am not sure what I'm seeing? The top instead of the usual straight cut like lines has lumps. like the tentacles. And instead of the usual looks of a broken off tail it has the gray as pictured. Is it the normal looks of a well preserved horn coral or another life form attached to it. I understand that they secrete calcium carbonate around them for protection, and that is what we normally find. all images with my cell phone, unedited. Thanks, Bob
  11. Possible Haxagonaria

    The rock on the right is a Petoskey stone but the rock on the left I am uncertain about. I found it in Alcona County, Michigan and it might be some sort of large celled Hexagonaria but I’m not sure. If anyone could help me identify it that would be great.
  12. Is this Michigan rock a fossil

    I found this rock in Lake Michigan near traverse city. It looked curious, is it a fossil? Glacial scarring? What made the bands?
  13. Middle Devonian Trilobite

    This partial trilobite is from the Middle Devonian Thunder Bay Formation. Assuming it's either Pseudodechenella (P. reimanni) or Greenops (G. alpenensis) based on common taxa in faunal list. @piranha is there enough here to assign a genus? This has been eroded by wave action. Scale in mm.
  14. This rock was found in the shallow water off the South East shore of Lake Michigan about 20 years ago. No idea what it could be. Any help would be appreciated.
  15. I think this might be a sea lily?

    I picked this up off of the shoreline of Norwood, Michigan this summer. Initially I just thought it was a weird, pretty shell fossil. Until this morning, when I read the recent Atlas Obscura article about sea lily fossils (https://www.atlasobscura.com/articles/sea-lily-fossil-utah-evolutionary-mystery). The bit that caught my attention was that crinoid fossils often segment into little 'cheerio' shapes. I have SO many Norwood specimens with the distinctive cheerio on them (see the second image, left), and it got me thinking that the white frond shape might be a sea lily? Anyway, I'll be happy to learn whatever it might be, as it's definitely one of the weirdest things I've ever found on the beach. Thanks! Made In Michigan
  16. brachiopods Fossil

    Hi, another find this month. largest is 11 cm. appears to have more both front and back. limestone 2.3 cm x 2.3 cm x 0.80 cm or covers a U.S quarter. Found in West Michigan. Thanks, Bob
  17. Found a Big Tooth Maybe?

    Found in the northern lower peninsula of Michigan. It looks like some kind of bone. Maybe a tooth? Its pretty big any ideas?
  18. Hi, all, A friend over on the Facebook group "Great Lakes Rocks and Minerals" recently posted this little silicified pebble she found along the shore of Lake Michigan, northern lower peninsula. The tiny pores got several of us on the group curious about whether we could narrow down a possible ID. Someone initially suggested heliolitid, but I think we ruled that out because there doesn't seem to be enough room between corallites for coenenchyme. We decided it must be some species of small-celled favositid, but is it possible to narrow beyond that? (My gut says probably not, since we don't have thin sections or better views!) I was curious about Astrocerium (referred to as Favosites venustus in older descriptions). It's described from the Silurian (Niagaran) of Michigan, which seems to fit with this style of silicification. Also, I think I see what might be interpreted as spinules in some of the corallites, but maybe this is just an effect of silicification. Plus, I guess spinules are pretty common in favositid species, so it could be any number of small-celled species of Favosites or Emmonsia. If anyone has examples of Astrocerium from their collection, I would love to see photos! P.S. Hope it's okay to tag you two, @TqB and @FossilDAWG -- wasn't sure of other coral experts to ask, though I know they are around! Thanks much! Lisa
  19. is this a coral of some kind?

    Hello all! I was cleaning out my closet earlier today and came across this rock I’ve saved for about... 20 years now? I found it while digging around at my grandmother’s farm in south central Michigan (somewhere between Homer and Litchfield). I’ve always wondered what it could be... any ideas would be much appreciated! (Notice that many of the tiny holes go all the way through the rock. I just thought that was pretty neat, haha.)
  20. Unique crinoid stem fossil?

    I attended an estate sale last week and the homeowner collected rocks. Sifting through the 50-cent box, I came across this specimen. It's not a complete crinoid, but the size -- and the size variety -- of the stems was particularly enticing. I haven't a clue about where she may have collected it, but the coral, brachiopods and bryozoan fossils in the box look like those I've collected in Michigan.
  21. Please Help Identify!

    I found these rocks at Black River Harbor and Little Girl's Point in Michigan a few days ago. It's driving me crazy not knowing what they are! Any insights would be greatly appreciated!
  22. Michigan Fossil ID

    This was found at Millennium Park near Grand Rapids, MI. I'm thinking Bryozoan?...but does anyone have an idea of species?
  23. ID help, please! Lake Huron

    Hello - new here! My 5 year old son has taken an interest in “rock collecting”. We have a cabin on Drummond Island, Michigan - part of the Upper Peninsula of Michigan. We found this in the shallow water of a rock beach of Lake Huron. They look like bones in here to me, but I honestly haven’t a clue! I’m a history teacher, but one geology class in college hasn’t helped me much with this new adventure. I appreciate any thoughts! Thank you!
  24. Mitten hunting

    Hey everyone, so I've done quite a few trips to the Rockport quarry in Alpena and a few road cuts around presque isle, but I was wondering if there aren't any "hidden gems" I'm missing out on in the LP.
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