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Found 94 results

  1. I found all of these (possible?)fossils in a trout stream in an old patch of forest in waupaca county Wisconsin. Any ID help would be appreciated. Thank you
  2. I was wondering through a beautiful moss covered forest in central Wisconsin(waupaca county) the other day and was walking though the creek picking up rocks that I thought looked neat. That’s when I came across this. One guy told me he thinks it’s some kind of clam from the Silurian period but it’s also covered in other fossils. Thanks! P.s. I’m sorry I had to hold them and get my fingers in the pictures, their was no other options.
  3. SE Wisconsin

    Found this in Southeast Wisconsin. Help identifying would be appreciated! It's about 3" long 3" deep 2" tall triangular (ish) in shape. The back is very cool as well. Thank you.
  4. Anything worth pursuing?

    I found these in a quarry in Madison Wi. There were quite a few of these with different shapes and configurations of what look like bones to me. These were from a smallish pile at the bottom of the deepest part of the quarry and I would guess that are from lower down in the earth. I apologize if I am not using the proper language as I am very new to this. i have seen some sea bed rock from a different quarry, that has loads of shells, mollusks, and snails in them. This rock looks very different from the sea bed pieces I have. Are these bones? Is it chert? I was with two other people or I would have pulled every piece I could find off the piles to see if anything could be puzzled together, as these and the others were all in one area of the pile. If the pictures could be more helpful in different light etc, I will happily retake some. Thanks for any insight into them.
  5. I found this on a beach at lake Michigan in southeast Wisconsin, Kenosha area. I'm just learning fossils and constantly in the searching for knowledge. Thank you for your help.
  6. Lake Michigan beach fossil ID needed

    Hi there all of you brilliant fossil folks! My daughter found this at the beach north of Milwaukee, and I think it's a contender for our local fossil hunting competition (best coral category). We tucked this and others fossils away earlier this summer, and I just realized that turn in is tomorrow! Any help would be greatly appreciated!
  7. Stumbled arcoss what a seller is calling a careaonitas sponge from the Hopkington formation in Milwaukee county Wisconsin. I tried to Google careaonitas sponge and didn't find anything...is it possible to have a different name or is it simply a misspelling by the seller and my Google skills are weak?
  8. Need help identifying fossil

    Found this 2 weeks back in Green Bay, Wisconsin but was part of an old railroad grade so most likely not originally from Green Bay but still probably from Wisconsin. Looks like 2 half spheres about the size of a quarter and one is slightly inserted into the other. The ring around the top half is perfectly straight and smooth so I'm pretty sure it's not a egg shell. Was thinking it might be some type of sea urchin. The bottom "cap" is damage from rock crushing.
  9. Probably nothing, but

    My son found this rock swimming at our lack cabin in Wisconsin. Looks like a rock, but is sort of shaped like a tooth. A big tooth! Sorry, only have a US tape measure at the cabin. No metric. Devils lake burnett county Webster, WI
  10. Newbie here, is this a fossil?

    Hello all! I found this on a beach of lake Michigan in Milwaukee, Wisconsin, USA. I was wondering/hoping it might be a fossil, I joined this form hoping someone could identify it. It was found on 7/20 washed up on a beach of small stones. thank you in advance for any response.
  11. Is this a dinosaur bone?

    I found this black bone in the St. Croix River just south (downstream) of Interstate Park in Taylor's Falls, Minnesota. It was underwater half buried on a sandbar. It may have been washed loose from nearby cliffs by strong rains a couple days before. It is about six inches long and an inch in diameter.
  12. Fossil Identification in Western Wisconsin

    *Higher resolution and many more images linked below to Google Drive for a clear view* Fossil: Large limestone rock containing hundreds of marine fossils and with what appears to be a bone roughly 3cm in diameter. As well what appears to be the remains of other bone structures. Location: Found 10 miles from the Mississippi River near Ellsworth, Wisconsin USA (Western Wisconsin) in a low valley area that looks like an ancient river bed. Rock Measurements: Roughly 15cm x 28cm My Understanding of Geology and Paleontology: 2/10 *There are a vast amount of images so I'd uploaded them to Google Drive in high resolution here: https://drive.google.com/folderview?id=1-QkitLR3bwWFEn0Dh6OoNngsH8F5O31w I found this large limestone rock on our property near what I imagine would be an ancient riverway located at the bottom of a recharge point (aka hill). During heavy rains this area can literally turn in to a river and wash the soil down stream. This rock appears to contain all of the common marine fossils you'd find in Western Wisconsin from what I've researched. However, there's what appears to be a bone or unusual looking aquatic creature near the snail as shown. The snail was extremely well preserved before the vinegar soaking ate the shell and pigment away. A bit more about the location in which it was found; I had been landscaping the slope of the soil for about 2 years in the backyard by shovel. I had lived in this home for about 4 years and I found the soil to be unusual versus any other home I've lived in nearby. The heavy, wet clay soil contained many large green basalt rocks - I'd never seen one before this time. The bedrock is limestone but about 100 FT away the bedrock is sandstone (according to geological maps). The Mississippi river is 10 miles from this location in western Wisconsin near Minnesota. It's also in the path of the "Great Midcontinent Rift" which I find interesting. There are also many large "bluffs" and rolling hills. It's a beautiful area. Anyhow, I'd like to find out what else may be in this rock. It has been in vinegar for about 2-years and is slowly changing shape which in my imagination resembles a skull. I'd like to find a means to protect the exposed fossils while the limestone is absorbing. I had read something about fossil glue or plaster that can protect the exposed fossils while in the acetic acid. This is an educational experiment for me and I've always wanted to learn about paleontology and geology. Any help and identification would be appreciated! There are so many fossils and things to look at in this rock that I uploaded the images to a public folder on Google Drive so that others can view them in a higher resolution. My Galaxy Note 8 is not the best at focusing on close up images so please forgive my photography. If you see something interesting I'd be curious to know! Thanks! -Jack from Western Wisconsin (Google Drive images: https://drive.google.com/folderview?id=1-QkitLR3bwWFEn0Dh6OoNngsH8F5O31w)
  13. Odd horseshoe shaped fossil

    Hello all, This strange fossil is from the Platteville of Beloit Wisconsin and I have no idea what it is. It is fairly well preserved with a fine granular texture to it. Any ideas are welcome! (3 inch post it note for scale)
  14. Ordovician trace fossil?

    This is another piece from the Platteville formation in Beloit Wisconsin. Inside a gastropod shell there is a hexagonal pattern that sort of looks likes Paleodictyon, but I think this fossil formed in too shallow of water for Paleodictyon to occur, but I am not sure. Its on a 3" post-it note for scale. (There is also a nice Pterotheca to the left!)
  15. Platteville Cephalopod

    So this is a fossil from Beloit Wisconsin found in the Platteville formation. I am pretty sure it is a cephalopod but I have no idea what genus or species. The siphuncle is hollow except for two septa that run right through it. 3" post-it note for scale.
  16. Plattville Ordovician Unknown

    I had a fun weekend hunting for fossils. The first day was spent in East Central Iowa with the fossil club that I belong to. A special find occurred there (placoderm tooth) and identified on the forum yesterday. I then headed east and looked at the Ordovician Platteville of SW Wisconsin. While at home looking at the specimens I returned with, I stumbled across this. Has me baffled. A stem taking a right angle turn leading to a sunburst type of pattern up top. Probably a few different bryozoans that come together suggesting what I see. But I would like some more intelligent people than me to evaluate this and give me their opinion. Maybe, just maybe something special??? I will cross my fingers. Thanks for the opinions, Mike
  17. ID Help

    With winter finally over we took a drive over to Lake Michigan to look along the beach. We found a many of the typical corals. I spotted this interesting looking fossil in the surf and quickly retrieved it. As I looked at it more closely and saw the details I became more unsure of what it is. I'll add some closeups in the next post. Thanks.
  18. Hey all! First time poster. Found a few fossils along the Milwaukee River in Milwaukee, Wisconsin. Looking online, it appears this area was a Devonian Reef. I don't have a lot of experience in fossils besides plants, so any ID or commentary is helpful. A few of these I just found as pieces in big piles along a rock formation, I tried to put up a ruler for scale. For the one piece in situ, I didn't have anything handy, but it wasn't more than a few cm across. Thanks!
  19. Platteville Wisconsin Crinoid Help

    I think that I found a small crinoid in the Ordovician aged Platteville Formation of Southwestern Wisconsin. i know there is not much to go on but am hoping someone can confirm that it is a crinoid. Any idea on species would also be appreciated. The specimen measures around an inch.
  20. Lake Michigan

    We recently spent a couple hours looking for coral along Lake Michigan. While most of what is found is surf worn, there are still some interesting finds. As usual there were many more found than pictured, but I leave much behind only keeping the more interesting pieces. This is very easy fossil hunting as it is literally a walk on the beach. There are fossils to be found up on dry land but I prefer walking the surf line. On this trip we had our 5 month old Golden Retriever with us. As it turns out she loves rocks and would watch for my rejects and quickly pick them back up. Pictured are some of our finds.
  21. A couple of rough trilobites for ID

    I am down to my last few trilobites to label from this summer yet. Am open to suggestions on these less than perfect finds: 1. Found in the Galena/ Ordovician of Iowa. Isotelus? If so, is the species obvious? 2. Found in the Platteville formation/ Ordovician of SW Wisconsin. Flexi? 3. Another Galena/ Ordovician but from Minnesota
  22. Help With Platteville Mystery Sponge

    I came across this unusual fossil on a recent collecting trip to Southwestern Wisconsin. It was attached to a hash plate containing mainly brachiopod fragments. It appears to be some type of sponge that I have never encountered before. It is roughly the size of a tennis ball with an opening at the top. There is also a smaller round opening on one side that might have been from predation. Any thoughts on what this might be?
  23. Unknown Ordovician Fossil

    This fossil is from the Platteville formation in southern Wisconsin, which is Ordovician in age. It does not seem to be a compress spiral, but rather composed of separate pieces or plates that alternate on either side. At the tip there are two sections that are positioned in the middle rather than on either side like the rest of the sections seem to be. I put it under the microscope but there is not much finer detail besides the individual grains, so it does not seem to be a Bryozoan or Coral. If anyone has any leads they would be much appreciated. The scale is in centimeters.
  24. Unusual Mollusk Shell?

    I found this on the Wisconsin shore of Lake Michigan near Racine. It appears to be a hollowed section of a mollusk shell. I have never ran across such a large cavity (about 1-1/4" across and almost 3" long). Also there is a unusual formation inside. Anyone help? Should I grind it down to expose cross section?
  25. Found in SW Wisconsin around a small creek bed while metal detecting. If you need any additional pictures let me know. Definitely want to go back and find more.
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