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Found 152 results

  1. Found a shoreline on the Missouri River in southeastern South Dakota with some mollusc fossils. There were lots like the one on the left, but only one I could find like the one on the right. Can anyone identify these? They'd be from the Cretaceous period, right? The fossil on the right is the size of a quarter. The ones on the left range from softball to golf ball.
  2. Possible tooth

    Anyone have any idea if this is a tooth? We found it near fort sisseton in South Dakota.
  3. ammonite help!

    Hello there! I was the lucky one who recently purchased "ammonite batch #3" from @RJB, and I was hoping to assign a name to the prettiest piece in the lot. I think it is a Discoscaphites sp. - what do you think? If so, there appears to be two common species belonging to this genus from the Fox Hills Formation in South Dakota (where this little guy was found) - D. conradi and D. gulosus (http://digitallibrary.amnh.org/handle/2246/815 and http://www.wmnh.com/wmima000.htm). I'm leaning towards D. conradi but, really, I'm not sure. Is there anyone out there who can help? Please see picture below: Thanks in advance! Monica
  4. Localities Near Pierre?

    I live in Sioux Falls but sometime in the future I may be visiting Pierre and was wondering if anyone knew any localities that yield good results in that area. Any help is much appreciated, thanks!
  5. Found this while hiking and climbing in south west South Dakota not far from Badlands National Park. A quick google search suggested an early camel, but I'd like to know for sure if possible.
  6. South Dakota Map

    (Posted in SD forum as well, feel free to move) I thought this would be an appropriate addition- my hope is that this map will allow forum users to plan trips to SD! Threw this thing together for you guys in some spare time at work. The map shows the extent of common fossil bearing strata in the state of South Dakota, as well as some "no-go" areas- reservations and the like. If you guys want a certain area zoomed in on let me know! FossilsSD.pdf
  7. Fossil Bearing units map

    Threw this thing together for you guys in some spare time at work. The map shows the extent of common fossil bearing strata in the state of South Dakota, as well as some "no-go" areas- reservations and the like. If you guys want a certain area zoomed in on let me know! FossilsSD.pdf
  8. Question on Missouri River

    Does anyone know if the Missouri River and the bluffs along it are good for fossils and if so where would be a good place to start? It seems like a lot of good exposures are along the banks.
  9. Cretaceous ,seed - Hell Creek

    Out at a hadrosaur dig site and came across this seed. Can anyone identify it? Thanks for looking!
  10. I found this tooth on the Missouri River by Yankton, SD. Can anyone identify it? Tell me any history on how it got there? How old it is? Does it have any value? Thanks
  11. Syringopora?

    Very new at this, have been out on the Buffalo Gap National Grasslands and came across this little piece. The closest I can find online are some photos of syringopora? What do you think?
  12. Hi! Back with more from the estate sale. I'm guessing this is a jaw section from a Titanothere? It appears to be, but I'm new to the ID game and want to be sure. The estate contained other smaller teeth that also look like Titanothere/Brontothere, but I don't have an exact location as to where it was found. There were many Stylemys turtles in there as well, and I've had those looked at by a paleontologist at SDSM&T and they said the turtles were likely found in the White River formation of the Badlands. Any help is appreciated. Thank you!
  13. Buffalo Gap Grasslands - South Dakota - ID

    My son and I have recently started visiting the Buffalo Gap National Grasslands to hunt for agates and other goodies. Today we came across something that we haven't found. About an inch and a half long, vertical structures that come together at center points on each end. Found in an area with plenty of petrified wood.
  14. Hi there. More fossils from the estate sale, this time a vertebra. I don't know an exact location, but the rest of the lot contains many examples from the Oligocene era, and some have been found to be from the White River formation in the Badlands. I don't have much information other than that. I've done an image search on Google, but there are so many that I am having trouble spotting one that looks similar. Any help is appreciated! Thanks!
  15. Fossil bone

    Found by a friend in Badlands National park South Dakota. Looking for any help on wether it's mammal or reptile.
  16. Is this a Stylemus turtle?

    Hi there! My daughter and I love to collect fossils, though we don't know much about them and can't identify most of what we have. We stopped by an estate sale today and bought 8 fossils, three of which were wrapped in brown paper and bound with electrical tape. When I opened them, I found three turtle shells. The best of the bunch is pictured below, and I'm wondering if I'm right thinking it's a Stylemus turtle from the Oligocene period. It's roughly 12" from front to back and 10" wide. I haven't taken the paper off of the bottom yet to see if there is anything underneath. The second turtle is in fair shape, but not nearly as good as this one. And the third I think is in bad shape. If you're interested, I can upload photos of those two as well. They appear to be different than this one. I don't know where they came from, just that it was part of an estate and they were in a lot of about 100-200 fossils. We're in the Rapid City, SD area. Thanks for looking, and any help would be appreciated.
  17. This was found on an anthill in the Hell Creek Formation, SD. A few years ago, a paleontologist at the South Dakota School of Mines looked at it and thought it could be avian. Can anyone out there confirm this? If so, any ideas as to species? Thanks for looking!
  18. Thought I'd introduce some and re-introduce others to a great little museum in Rapid City, S. Dakota: The South Dakota School of Mines Museum of Geology. I love little museums like this. The displays are put together by faculty and students, mostly, and thus are innovative in their simplicity of materials and design and purpose. Admission is free, and there is a little museum store where you can buy shirts and other museum store fare. I'll let the photos do the rest of the talking:
  19. Squid Pen Dig

    Last fall after working a museum, I returned to a ranch in the Pierre Shale south of Rapid City. One of the students I'd brought with me earlier in the spring of 2016 spotted a chunk of fossil that we originally identified as wood, before we realized that it was a large squid pen! So, right before our classes started we got back together and spent a few days camping on the ranch to excavate it to donate to the museum as well as some other fossil. All kinds of things got in the way, our car broke down, we were driven out of our tents by a thunderstorm, and if it weren't for GPS we would have lost the location of the pen. The site was on a steep, soft hill of shale on the edge of a ravine with a half dozen cattle skeletons from a blizzard back in the nineties. But we got the squid out of the hill and into the museum! Almost a meter long, seems to be the middle of the rachis with a few fragments of the vane
  20. My largest fossil trip I've ever done is underway, I'm going fossil collecting in the Black Hills of South Dakota! Could someone perhaps please tell me what I'm to expect? Thanks!
  21. I picked up these white river formation teeth in bucket labelled rhino. I doubt that label. One is partial tooth and the other is a jaw section.
  22. Hell Creek Mammal

    Sorry for the barrage of Hell Creek posts, I finally have time to go through some of my summer collections. I am having a hard time with this mammal tooth (Hell Creek Formation, Late-Cretaceous, South Dakota). The occlusal surface is heavily worn. I was thinking perhaps Cimolodon? or Mesodma? Any help / suggestions would be greatly appreciated. Scale bar = 1 mm