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Found 108 results

  1. The big horn coral embedded in the rock is about 1.5 inches long, for scale. I really like the colors! Anyone have any idea what species it could be? Whenever I find em' I just call em' "horn corals", but if you ask me, they look more like barnacles or something (even if they're unrelated -__-) Good hunting!
  2. Strange rock/possible fossil???

    I live in southern Michigan in the Oakland County area. There are a lot of gravel pits in the area that are full of fossils from up north and the Canadian Shield that were brought over by the glaciers in previous times. Most of my fossil collection from the area consists of red limestone rocks with corals, pieces of crinoids, and brachiopods. This rock, however, is different. A few years ago I found a neat rock in my backyard. Took a few more pictures of the matrix itself, but there's a limit to the number of pictures I can post at once. I'm not an expert in geology, so I'm not sure what kind of rock this is exactly, but it's certainly not limestone or some sedimentary shale. The rock is quite hard, difficult to chip with a hammer, and appears to have many silicate inclusions. If I didn't know any better, I'd say it's granite. On the edge of the rock there is an interesting black protrusion of material that looks decidedly different from the rest of the stone. Since the rock looks like an igneous rock, I don't think the black mark could be a fossil, but at the same time, maybe the rock once was a sedimentary stone that metamorphosed into what I'm looking at.... Like I said, I know nothing about rocks, so I'm just guessing. Is it possible this is a fossil? Good Hunting, Brian
  3. Last one I promise

    Is it a bone? Found near the other one that looks like bone in Cheboygan Michigan.
  4. Trilobite?

    Found this what I believe to be a partial trilobite about 10 years ago on the Dead River Basin in Michigan's Upper Peninsula after a dam broke and there was a flood. I'm curious to identify it positively as a trilobite as I was told it it was. To age it. And I know you don't appraisals but I'm curious if it might be worth something. I tried to take pictures according to the directions if there's something better I can do please comment. Thank you in advance.
  5. Encrinurus? (Trilobite)

    Is this a fragment of Encrinurus pygidium? Location / formation in tags. Scale in mm. @piranha
  6. I think this one is a conodont (see tags for formation, location). Scale in mm. No conodonts were reported by Ehlers (1973) thorough study on these formations, so I am guessing if this is a conodont, it's a somewhat rare find.
  7. Silurian (Niagaran Series) 2 items

    I have two items on which I am requesting opinions. These are from a dolomitic nodule from the Schoolcraft Fm. in the upper peninsula of Michigan. The first one I think is a pygidium of the trilobite Scutellum. (note there appear to be some other trilo"bits" surrounding it). @piranha, what do you think? Here is an image from Ehlers (1973) Stratigraphy of the Niagaran Series of the Northern Peninsula of Michigan that he has as Scutellum laphami.
  8. Earlier I posted a specimen that was sent to me from the Upper Peninsula of Michigan that turned out to be a non-calcareous alga from a Middle Silurian Lagerstätte: Late this summer I travelled to the site to search for more. After about a half hour of searching and splitting rock, I discovered that the algae and other fossils were concentrated in huge nodules. I collected some tonnage to bring back to "dissect" with a 3 lb sledge and a tile saw. Here's most of what I brought back: Here's most of what remained as "keepers" after much splitting and cutting: I was very pleased to have found more algae including what are likely multiple taxa.
  9. Stromatoporoid

    I think this is a stromatoporoid but would like additional opinions before I label it. It comes from dolomitized middle Silurian limestone of northern Michigan. I thought it might be coral that had undergone diagenesis, but there are well-preserved Favosites present, so I'm pretty sure it's Stromatoporoid. They were abundant, as were the corals. Here's one in the matrix: Here's my specimen (cut with saw): Here's a "thin" section and an acetate peel:
  10. Fibonacci Fossil

    I found this near Alpena, Michigan in the lake. In this area, I find Petoskey stones, favorites, occasional chain coral, occasional horn corals, and large, branching fossils in a black matrix. There are Devonian era fossils in this area. Obviously, I am not a fossil expert, I was mostly looking for Petoskey stones and pudding stones for lapidary purposes. I hunt this beach quite often, but have never found a fossil like this. It has a Fibonacci pattern like pine cones or sunflowers have.
  11. Fossil help

    I have many types of Rugose coral as shown, but what is commonly in the middle? Calcite, quartz? Rare? Also what type of fossil are the other two?
  12. Dinosaur Fossil ID help needed

    I am a not a fossil hunter or collector, just happened to find this by luck in my yard in mid Michigan. I can only tell you this fossil is highly magnetic, and appears to be a baby of some sort. The surface is quite detailed, you can see the skin in detail with a magnifying glass. Id just like to find out what it is I've found, any info would be great. I will do.my best to answer any questions. Thank you
  13. 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
  14. 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!!
  15. 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.
  16. 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!
  17. 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
  18. 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!
  19. 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.
  20. 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.
  21. 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!
  22. 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.
  23. 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.
  24. 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.
  25. 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.