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Found 96 results

  1. Hello! I would love to have more info about this interesting fish bit that a paleontologist friend and I found a couple of months ago near Jackson, MI, in a glacial dump of Marshall sandstone. This little cobble was already broken as it appears, and we couldn't locate any other pieces of it. We're certain it's bone, and that it most likely came from the pectoral girdle (or pectoral spine area) of a bony fish. I looked through the list of Mississippian material found in MI from the Geology of Michigan, and noticed that while it describes lots of Chondrichthyes found in early Mississippian rock, no Osteichthyes from the Mississippian are recorded in that book. The closest match my friend suggested was Psarolepis / Andreolepis ( https://www.nature.com/articles/17594 ), but if this is the Marshall sandstone as we are sure it is, he says those genera would be far too old. Any thoughts would be welcome! (P.S. The second photo is a stereophoto.) Thanks, Lisa
  2. Lake Huron Fossile Hash

    My family and I found 2 ENORMOUS slabs of what I think is Fossile Hash. Though the stones are large I think they washed up recently. I took tons of pictures, but they’re not that great! I wasn’t sure what I was looking at, but it was easy to make out a few fossils knstantly. The more I look the more I see! It took me 3 hours on the internet to find the term Fossile Hash, I have almost 0 knowledge to share with my kids on this! I will try to upload a few pictures! Would this even be considered Fossil Hash? Are any of the fossils identifiable from the pictures? I know you can’t take anything more than 25 pounds (and would be a heck of a feat) But what if a piece broke off lol Thanks in advance for your help!!
  3. Large tooth found in Traverse Bay Michigan

    Hello, My 8 year old son found this while wading in Traverse Bay Michigan last week. It seems to be some kind of tooth or tusk because it is serrated on two opposite sides. It is definitely fossilized. Any idea what this is? Thank you for taking the time to look.
  4. Fossil or nah?

    I found this on a beach in Mackinac Island in upper Michigan on Lake Huron. Just wondering if it’s a fossil, and if so what? Thanks!
  5. Fossil ID Help

    I have over 20 fossils that I’ve found. They basically all look the same except a few, but vary in size and texture. I was hoping someone could tell me what they are and potentially how old/rare they are. Some look like trillobites but I can’t find similar fossils to match them up with. Thank you! —Chris, Southern MI
  6. Probably horn coral.

    When I first found this fossil I had no idea what it was, but after only two days on this board I'm pretty sure it's horn coral. Learning quickly! Just looking for a positive ID, since I'm still very new and could certainly be wrong. Like the others, probably found on the Michigan/Indiana border. This is the last one for today. Thank you guys for all the help!
  7. No idea on this one.

    Like the others, this was also found near the Michigan/Indiana border. I have no idea what it is though. I wasn't sure it was even a fossil at first, and thought it had some weird grooves cut into it, but when I looked on the side and saw the ring, I knew it was something. Post 3/4 for today.
  8. This fossil is also from the Michigan/Indiana border, and appears to be some type of coral. I have no idea what type, or from what time period, etc. Even if I (probably) know what type of fossil it is, is asking for clarification/details okay on this board? Thanks in advance.
  9. Unknown fossil with crinoids

    Time for the second batch of fossils that I've found out on the job. I have four to upload today and this is the first. I think I found this near the Michigan/Indiana border. There are two crinoid columnals in the rock next to the darker structure. Any help would be greatly appreciated, thanks!
  10. Fossil ID Inquiry

    Hello. While vacationing along Lake Huron in Michigan, I found a rather impressive, and likely rare, fossil (see image). It is clearly a vertebrate with skull, spine, appendages, and pelvic region relatively intact and clearly visible. The specimen is approximately 2 inches by 2 inches in size. Any advice or direction, as to whom I should contact to identify/analyze my find would be most appreciated. Thank you very much for your time.
  11. Coral cluster?

    I found this fossil a couple years ago in Michigan. I unfortunately can't remember where exactly. It seems to be a collection of smaller fossils.
  12. I found this in the sand right at the water of the Warren Dunes State Park beach. Maybe hard to tell from the photos, but there are definitely pores where the tooth would have broken off. There’s also a ridge that I am guessing shows where the tooth would have emerged from the gum line. I didn’t set that ruler up very well. It is just over a half an inch or 1.5cm long. From the ridge to the tip is about a 1/4 inch. And the width of the base is just over a 1/4 inch. My apologies if this is just some dog tooth or something from the last decade or so.
  13. Found this, and a ton more, with my daughter over the years. Found this on Lake Michigan, near South Haven - Coldwater Shale Formation/Mississippian/Devonian There are lots of braciopods, from what I can see. Some having an amber looking coating, others having a metallic coating. Can anyone help with this, before I start to polish it (and let me know if I shouldn't). I've always just picked up rocks and coral fossils at the beach, and just now have really started to get curious....so I'm new to this, forgive me if I've missed anything. There are some close up shots, with a tootsie roll for scale...only thing I could find lol.
  14. Hexagonaria Coral 'Petoskey Stone'.JPG

    From the album MY FOSSIL Collection - Dpaul7

    Hexagonaria Coral 'Petoskey Stone' (Polished) Michigan Devonian period (~350 million years ago) Hexagonaria is a genus of colonial rugose coral. Fossils are found in rock formations dating to the Devonian period, about 350 million years ago. Specimens of Hexagonaria can be found in most of the rock formations of the Traverse Group in Michigan. Fossils of this genus form Petoskey stones, the state stone of Michigan. Hexagonaria is a common constituent of the coral reefs exposed in Devonian Fossil Gorge below the Coralville Lake spillway and in many exposures of the Coralville Formation in the vicinity of Coralville, Iowa. Kingdom: Animalia Phylum: Cnidaria Class: Anthozoa Order: Stauriida Family: Disphyllidae Subfamily: Hexagonariinae Genus: †Hexagonaria
  15. Found on Lake Huron MI beach

    A total newbie here looking for an ID. Thoughts?
  16. Could it be a recent bird egg fossilized?

    So I was on a hunt for Patoskeys over on lake Huron and I came across this very odd find. It looks to have the exact qualities of an egg. I have been searching around to find others like it and have come up empty. Any help?
  17. Possible Fossilized Tooth?

    Found what might be a tooth fossilized in the Upper Michigan area at Lake Superior.
  18. Mississippian Mother Lode

    Today I had an unusual opportunity to access a site rich in local Marshall Sandstone (Early Mississippian) bedrock as well as local-origin erratics of the same here in Michigan. Much of the bedrock in this area is covered by up to 100s of feet of glacial deposits. Look at the size of this chunk I was able to bring back. It's basically a "coquina" of molluscan and brachiopod shells. I think I have some new hernias now as a result of carrying this thing back to the truck (just kidding - I think...). I didn't have the aid of the wagon until I got back . But it was an exploratory trip and I didn't quite expect anything like this: Here is a close up of how rich the material is:
  19. Input requested (UPDATE!)

    UPDATE: This specimen has been identified by Steve LoDuca as Thalassocystis striata, a non-calcareous Silurian macroalga. Interestingly, the type specimen was found in the same general locality as my specimen. I have a friend who works in a Silurian dolomite quarry in Mich. He sent me this pic this evening. I have not examined the rock in person yet. The pessimist in me says mineral deposits. The optimist in me says maybe fossil algae. It's a long shot considering dolomitized limestone... but it sure looks interesting... thoughts?
  20. Possible Crinoid or Sea Pen?

    I found this a few years ago at my camp near Munising, MI. I find a lot of fossilized corals, trilobites, and bryozoan there. I am going through my fossils and trying to label them, and I noticed this odd one. I am thinking it is a crinoid or a sea pen, but I am not sure.
  21. Clam?

    I found this as a kid in an old surface mine (I was told) in the upper peninsula of Michigan near lake Gogebic. I found it in a large pile of loose sand. It looks and feels like sandstone, but maybe harder. It has what looks like a "foot" on the bottom and a hinge in back. I would appreciate any speculation on what it is. Just a funny shaped rock? Thanks.
  22. Petrified wood?

    Hello all! Thanks again for all of the great info on my Previous fossil! I AM ASTONISHED by how old my coral is! I have another fossil (hopefully) I am somewhat weary about.. its a small piece but to me I believe its a piece of petrified wood. Your thoughts? Once again I am eager to see if I am able to see how old this little guy is. You guys ROCK!
  23. Fossil ID help

    Hello all! I am somewhat new to this but very excited! I recently went on a hiking trip and found this rock (with some fossils) on it. Have no clue what they are; maybe you can help identify them! We were in Free Soil Michigan on the Lake Michigan shoreline when I came across the rock. Any and all help would be amazing! Thanks!!
  24. Paleozoic Coral

    Some more coral from Lake Huron. Same genus as the Hexagonaria, or a different genus? I found two different individuals. I've got pictures of them both.
  25. Coral

    Another coral from Lake Huron. I'm not sure what this one is.
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