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  1. NanaRocks


    I'm hoping for a proper identification of the pictured rock. It is 5.5" long, 3" at its widest, and 2" in height. I found it in the area of a former gravel pit just to the north of Grand Rapids, Michigan. I've researched it and it appears to be a Stromatolite. Please assist?
  2. I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
  3. WIComberDad

    Hello from WI

    Avid amateur fossil hunter on the WI side of Lake Michigan here and the occasional find in the woods or even in parking lot gravel. 40 year old dad and 7 year old daughter team. Love the hunt, the find, the research, the aesthetic. Recent find attached. Nice size honeycomb coral. Basic, but a nice specimen for a weekly walk.
  4. Does anyone have experience hunting the Silica Shale in Michigan? How common are vertebrate fossils?
  5. rockyrock1010

    What is this?

    I recently found this while looking for a find out in the wild. I am not sure what this is, considering I found it in a river, but it seems like it may be a snail/slug/gastropod I am an amateur, so I can't easily identify things. I am looking for the scientific name for this species though, because I am working on a display box for some of the fossils I have found already. Also, I did barely any digging, for anyone's information. and in the image I am including a reference drawing because the quality of the camera I own is garbage (sorry). Any information helps.
  6. rockyrock1010

    What is this?

    I was looking through my collection today, and I found this rock of milky quartz, and it looks strange. it has a few small openings on the crack that was made, and it reminds me of some other rocks in my collection, I can't exactly find a name for them or any clarity on what it is. also it looks shiny, similar to a gemstone. to avoid the previous problem with my other post (sorry about that one) I tweaked the settings on my camera and the lighting and they look fine, but if I come across any other problems again I will try to fix them. Also, I ran in with one of my brothers and I asked him if he could give me any suggestions, and he said it kind of looks like shocked quartz. and he showed me a few images of it (I will also include one in the photos), and any information helps, thank you. P.S. The images of my rock are the ones with a white paper background, the ones I found of proof do not.
  7. Pamela k

    I need help identifying this

    Does anyone know what thus fossil is
  8. trilobites_are_awesome

    Trilobite pygidium from Rockport quarry Alpena.

    I went to Rockport quarry in Michigan several times this year. And found this trilobite. A friend says it looks like Crassiproetus but i am not sure.... Thanks! In advance
  9. jugglerguy

    Trilobite from Michigan

    My neighbor found this trilobite (at least that's what we think it is) in a large, quarried piece of limestone in Alpena, Michigan. The exposed part is about 1.5 inches long. The bedrock here is from the Devonian period. Questions: Is it a trilobite? Can you tell if it's curled up in a ball? He thinks that might be its head on top, curled up around its tail. Thanks for any help you can give us!
  10. Michigander

    Bedrock specimen

    Found this beauty washed onto the shoreline
  11. Michigander

    Miscellaneous fossils

    Miscellaneous fossils along the Michigan shoreline of Lake Huron this summer
  12. Is this a part of a Trilobite - or …?
  13. Michigander

    Little Dino - or what?

    Found this dinosaur looking fossil along the shores of Lake Huron north of Lexington.
  14. PaleoBri

    Michigan Devonian Bony Fish Plate

    At the beginning of the summer @Cris and I took a trip up to Michigan and stopped at Alpena while there. I ended up finding a bony armor fish plate there, you can see in the top center where it had fallen to rest on a coral that dented and crushed it. We painstakingly glued it together before lifting it from its host rock to reveal beautiful blue vivianite and small white druzy crystals on it. It’s about 8 inches long and 3.5 inches tall. I believe it’s from the Devonian Rockport Quarry Limestone Formation. I’m not sure what species it belongs to, I would gladly accept any input! It currently needs repairing, but I can get more photos of it once that is done if needed. Thanks!
  15. connorp

    Michigan Eldredgeops

    I first became interested in fossil collecting while living in Michigan, so any fossils I find in the state are somewhat special to me. Last summer I took a quick trip up to Alpena, MI to collect the Devonian in the area. Lots of interesting things were found, including two Eldredgeops. Neither is complete, but I was still quite happy to find bugs in a state that does not give them up easily.
  16. I found this fossil in Alpena, Michigan, in the USA. It looks like a colonial rugose coral to me, but I’m not sure of the genus or species. It would have to be Devonian or Silurian, and native to Michigan. Does anybody know what this is? Also, is it a petrified or cast fossil? I attached four photos below.
  17. Daisbea

    Lake Michigan finds!

    AAAAAA OKAY OKAY!!! This was my first ever fossil hunt, and it was so fun and so worth it! We hiked about three miles to get to the beach where only a few people were at. I immediately started finding crinoids in rocks, as well as some rocks that seem to look like some form of coral! I later started finding individual crinoid stems! Coolest experience ever. I can’t believe I held 400 million year old organisms!! if you have any ideas on what the red outlined things are feel free to comment! The orange highlighted specimens are stuff i picked up that looked a lot like something other than a rock but im not positive. The green circle is some cool coral! (I think) <3 10/10 experience. I got a little sunburned on one part of my back but it was so worth it!! Might make one of the crinoids into a necklace for my mom and I. She really loves crinoids and nature and was upset she couldn't find any. My brothers didn’t believe it when i found my first one and one said “are you sure thats not just shells stuck in a rock?” LOL!!!
  18. Daisbea

    Is this a fossil?

    Found this in Indiana Dunes National park! I left it there of course because you aren’t allowed to take anything. I was wondering if this could be some sort of stem indentation or just a silly looking rock? thanks!!
  19. Noahking

    Lake Huron MI fossil

    Hello! My 10 yr old son found this cool fossil while stone hunting on the shores of Lake Huron, MI (the shore on the lower peninsula side near the bridge to the Upper Peninsula.) We are interested to find out any info and haven’t been able to find any online pictures that look similar. There appears to be another fossil on the opposite side as well. Any insight, including where we might do additional research, would be helpful. Thank you all! Matt and Noah
  20. Mastodon skeleton discovered by accident in Grand Rapids, Michigan 13 on Your Side, Youtube, May 19, 2023 Mastodon bones unearthed by Michigan work crew go on display in museum Mike Householder, Associated Press, Detroit Free Press, May 19, 2023 Mastodon unearthed in Kent County considered a ‘pretty rare’ find WOOD TV-8, Grand Rapids, Michigan, September 13. 2022 An older Mastodon Dig That Mastodon, Calvin University, June 18, 1999 Yours, Paul H.
  21. bockryan


    Hi everyone - found an interesting rock in the deck gravel at my parent's house in Michigan, fossils turn up there pretty often and from the outside this one had an interesting look, I gave it a cut and a quick polish and wonder if it's a stromatolite? They do appear in MI fairly commonly across a bunch of different formations from what I understand, what do we think? We are in the lower portion of the state where most of the fossils are Devonian, but the gravel could be from far away so not certain
  22. Crooper

    Can anyone ID?

    Found this in my back yard a few weeks ago. I live in Michigans LP.
  23. jugglerguy

    Is this Devonian fossil Syringopora?

    A friend of mine found this fossil on South Point of Thunder Bay near Alpena, Michigan. The fossils here are from the Devonian Period. My best guess is that it's syringopora. Any identification help is appreciated. Thanks!
  24. TRM

    Fish fin?

    Found this by Southfield Road, Lathrup Village, Michigan more than 50 years ago, so it could have come in limestone used for road construction. Is it a fish fin (as I assumed at the time) or perhaps a crinoid crown?
  25. Here is a comprehensive list of most of the blastoids personally found by me at PP. This is roughly 80 hours worth of collecting the site from 4 total trips. Placoblastus obovatus: Specimen 2 Specimen 3 Hyperoblastus bassleri: Heteroschisma subtruncatum: Nucleocrinus meloniformis: Specimen 2 Specimen 3 Unknown blastoids: Specimen 2 Going to post one massive topic about Partridge Point tomorrow, still working out how to shrink photos so it isn't a mile long.
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