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Found 122 results

  1. 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!
  2. 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?
  3. 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!
  4. 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.
  5. Looking For Fossils In Michigan

    It has become a yearly tradition of mine to visit the upper part of Michigan's lower peninsula, around the Gaylord and Traverse Bay areas, for vacation with my family, and I often spend time looking for fossil in the area, mainly Hexagonaria/Petoskey stones, but for some reason they are far and few between. During my time in the area, I have also found a chunk of limestone containing what appears to be the glabella of a trilobite surrounded by what appears to be large, crystalized corals, possibly a Heliophyllum or similar rugose coral, a smaller piece of the same coral, and what seems to be the calyx and arms of a crinoid. Should I be looking anywhere in particular along the shores of Lake Michigan that aren't as well known as some of the popular tourist destinations? Also, are there any areas more inland that are accessible? (i.e. old quarries, roadcuts, etc.) Any and all advice would be greatly appreciated!
  6. A family member had this sitting next to their fireplace. I am generally clueless, but I'll try and give you as much information as I can. This was found partially buried in central Michigan in a field. There's a lake in the general area. Useful details: Generally bowling ball sized. About 35lb / 15kg, 12" (300mm) or so in the longer dimension. Concrete like feeling to it. It's non-ferrous. For all I know it was some junk leftover from someone pouring a sidewalk, that happened to take an interesting form. Can anyone point me in a good direction of what this is? Let me know if there's any more details that would help, and I can try to answer your question. Slightly bigger images in the imgur link I put below. https://imgur.com/a/SKTFon2
  7. Peninsula point

    Think about go camp near Peninsula Point and I'm little confused on where is that road cut located in one of Paleo Joe's video.... can anyone help me out? Thanks!
  8. I've recently become aware that there has been Pennsylvanian plant material found in the vicinity of Lansing, MI (Saginaw Formation I believe). All academic papers I've found on the subject are quite old, and I've read conflicting reports from here and other websites as to whether these localities are productive at all. Has anyone had experience hunting these areas?
  9. Halysites (?) specimen

    I found this pretty little chain coral in southwest Michigan glacial drift a couple of days ago. I'm interested in whether it's possible to narrow the ID down between a Halysites species or another genus, like Quepora. My simplistic understanding is that coenenchymal tubules would indicate a Halysites species, so that's what I've been focusing on, although I know there are many other indicators, like size and shape of corallites. size of ranks, shape of luminae, structure of longitudinal tabulae, etc. This piece is probably too silicified to tell without thin sections, anyway, but I thought I'd throw the pics up, in case there's a coral person here who can help me interpret any diagnostic features they see. (The tape measure I tried to hold up in the last photo is cm) Many thanks!
  10. In need of help identifying

    Hello there. I am quite a beginner to fossil hunting and would like some help on identifying one’s that I found today on the shore of Lake Michigan in New Buffalo, Michigan. I am aware that some could be rocks that I may have mistaken for fossils. Like I said, I’m new to this but would appreciate any of the help that I could get. Thank you.
  11. Is this a blastoid?

    I found this on partridge point in Alpena MI in Devonian limestone and have been finding crinoids and blastoids. I’m not sure what this is.
  12. After a bust season in Florida for the Peace River, it has been way too high. I am excited to be planning a trip back to Newberry, Mi. Two years ago when I was there, I was able to collect at a degrading hill side east of the town. There is a quarry of Collingwood Shale south of the town, but I was fortunate to find drift cobbles, and some Collingwood Shale on a friends property. Last time I found several nice impressions of Pseudogygites , mostly just the pygidium. I also found a couple of kinds of graptolites, and brought back a 4 inch thick, 16" long slab of shale with a nice orthoceras impression on the top. As i began salivating about my new trip, I returned to the shale and decided to split it, hoping I would not break the orthoceras impression on top. Well I am glad I did. It was such an interesting afternoon. One of the splits revealed just a fine grain layer of dark mud, with nothing in it. That was the middle split. Then I split each of those halves...in the have below the clean layer, I saw lots of little white dots...ranging from 1/32 of an inch to 1/16...Turns out they are braciapods. I captured a photo of one of the largest, and in it, the hinge even shows. Amazing. On the the half lying between my orthoceras impression on top of the clean grainy mud. Excitement. And drum roll please. I popped open what appears to be a small orthoceras, but perhaps it is a conularid, can't really tell. The exciting thing for me was the preservation. It has a nice decomposition blow ring of color around it, deriving from the decomposition gasses. I learned that from studying my Conasauga trilobites. And then it has some nice detail indicating structure. I was really excited. In the photo of the two halves, one looks larger because it is closer to the camera. On the other side, the top of this piece, my orthoceras was preserved, but a little chip from the side revealed a nice graptolite. A bit more might be revealed, but my previous experience with graptolites. precludes that...I don't plan to touch it. I found so many of them last time, I played around to see if they would be cleaned up....not the ones I have, they just break apart at the slightest touch. So overall, I feel like I am experiencing my trip once again, and I hope to be able to post new photos in June after I return. First photo is the little brachiopod (unknown type). Second photo is the Collingwood shale after splitting. Third photo is the two halves in same photo. Fourth photo is half A - fifth is half B
  13. Michigan rest stop

    Just beforehand my exit on the highway, I really needed to use the restroom, and pulled off at a rest area. This was quite lucky, since there was a very large piece of shale sitting in front. The whole thing was a giant hash plate. It was heavily weathered though and there were a bunch of fragments strewn around. I ended up finding quite a few nice pieces in the debris on the ground. Here's the rock and a closeup.
  14. Fossilized tooth?

    Hello fossil friends! I am very new to this world, my son and I started looking for geodes a few months ago and that has expanded into an amazing hobby, and a house full of rocks lol. I'm very intrigued with fossils/ bones but I don't know how to identify what we find! I'm pretty positive this is a tooth? Found in southwest Michigan, thanks in advance for any help!
  15. 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!
  16. 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
  17. Last one I promise

    Is it a bone? Found near the other one that looks like bone in Cheboygan Michigan.
  18. 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.
  19. Encrinurus? (Trilobite)

    Is this a fragment of Encrinurus pygidium? Location / formation in tags. Scale in mm. @piranha
  20. 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.
  21. 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.
  22. 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.
  23. 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:
  24. 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.
  25. 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?
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