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Found 272 results

  1. Mazon Creek Annularia or Cephalopod

    I am at a 99% certainty that this is just a weathered annularia, but there is a very small percentage of my thinking that it might be the cephalopod, Jeletzkya douglassae. I know that J. douglassae has 10 arms and this concretion has 9 branching (leaves / arms?). I collected this 1/2 concretion years ago at Pit 4 (Shadow Lakes- Braidwood Flora / Fauna) What do you think @fiddlehead, @RCFossils?
  2. Mazon Creek ID help

    Hey Everyone! Happy new year! A nodule from South Pit 11 Mazonia area split and can't figure out what it is? Millipede? Shrimp tale? I have the Wittrey book I've been looking through and I see similar features on multiple animals from his pictures. Thanks for your help!
  3. Hi, I am not a fossil hunter but accidentally discovered the ability to find 300,000,000 yr old fossils in Mazon Creek on a TV show. Wow!!! I've been researching all day and now want to take my family there for spring break in March! Our story (short) & my questions: My daughter is very interested in science and nature and critters. She spends hours outside digging contently for rocks, loves bugs, has rock collections, books on rocks & minerals, etc. She struggles in the classroom (3rd grade) and learns best by hands on experience. She would absolutely be in heaven here- our whole family would! I love to help my daughter experience her interests through our adventures. What advice could you give a family of 3 who has never hunted fossils? We are in Missouri so interested in camping close by- does anyone know of any good evening Camping places? Do we need to register with the state park and get daily admission? Should we go where most tourists go or off the beaten path? Is it possible for newbies to find a few fossils? Even if we found the most common we'd be so excited! We love exploring and take small hikes as a family. Are there spots within a couple miles of the "road" or parking? I truly appreciate any help! I will keep researching as well. I hope we can go and see this unbelievable history!!
  4. Mazon Creek fish scales

    I am asking for help identifying the species of some fish scales from Mazon creek. The scales were too small to put a scale in, but the whole patch is about 1.2mm in width. On the reverse side of the concretion it appears there are some spines under the scales, possibly from the fin. My initial thinking is Rhabdoderma Exiguum as the fin looks similar to me as an example from RCFossil's collection:
  5. Last weekend, since the weather was supposed to be nice and my wife was out of town, I decided to get out and collect from three Pennsylvanian sites in Illinois and Indiana. On Friday, I took the day off work and headed down to the former Chieftain no.20 mine site south of Terre Haute, in what is now the Griffin Bike Park. It was an overcast day with a slight drizzle and I had the park all to myself. I found a nice assortment of nodules, including a few split ones with ferns- the one on the left, although preserved in three pieces, is my biggest one yet from this site. The best find didn't come until I cleaned them after I got home, though. What I thought was a slim fern pinnule turned out to be a millipede, my first! No Myriapoda have been reported from this site, and the preservation is not perfect, so I am not sure what the ID would be for this one. The next day I met up with my dad and enjoyed an outrageously beautiful day at Mazonia-Braidwood in northern Illinois collecting Mazon Creek nodules. I was glad I brought sunscreen! None of the split nodules I found had anything spectacular, just a few nice Essexella, but we found a good assortment of concretions and got to explore a portion of the park I had not been to before. I was also able to educate some folks we met in the parking lot who were visiting from Missouri about what to look for when collecting fossils in the park and shared some of my extra split nodules to make sure they didn't go home empty-handed. It's always a pleasure seeing other fossil collectors in the park.
  6. Mazon Flora help

    I've had a few specimens in my collection that I have questions about and am seeking some clarification. #1 another view #2 #3
  7. Mazon ID Assistance - No.5 egg case?

    I have a Palaeoxyris that is significantly larger than this specimen. Is this a Palaeoxyris, and why would there be such a discrepancy in size between specimens?
  8. I Lied

    Sorry, I forgot about this one. If I post another within two weeks, I promise to distribute my entire Mazon collection among you all. Offer void in the United States and other countries. I think I know what this is, as I see a similar image of one in an RCFossils album. But just to double check, this is what I believe it to be: Mamayocaris Jaskowskii.
  9. Mazon Unknowns - Slug?

    To all of those who have made suggestions, educated guesses, and definitive identifications: This is the last one I currently have a question on, and I want you all to know that I have appreciated all of your efforts in helping me to understand and identify some of my more problematic specimens. I have learned a lot from the information on The Fossil Forum, the galleries, and from comments and links provided by everyone. Most of all, I have learned that I know very little, and that makes me appreciate your knowledge even more. Thank you so very much! ~Paul
  10. I was watching the Clint Eastwood movie “The Good, the Bad and the Ugly” recently and it made me think about collecting Mazon Creek concretions and how the movie title applies to them. Let’s start with a couple of the “Good” things: -Over the years there has been numerous books and articles written about the Mazon Creek area and concretions and they provide outstanding information for the collector of all levels. -With about 400 species of flora and about 320 species of fauna that are found in these ironstone concretions plus the remarkable preservation of so many soft bodied animals, I feel that it rivals the fossils found in the Burgess Shale and Solnhofen.
  11. Mazon Uncertains - 7 ?

    What I first thought to be a Cyclus, after photographing with shadows, looks kind of like a jellyfish (Reticulomedusa?).
  12. Mazon Uncertains - 9 ?

    The first and last ever discovered baby bottlenose dolphin to be found at Mazon Creek! How lucky am I? Not a clue.
  13. Mazon Uncertails - Tully?

    Really don't have much of a clue, but think I'm seeing a tail fin at the very least.
  14. Mazon Uncertains - 6 snails?

    One that I initially thought was a coprolite, after photographing and zooming in, I believe I'm seeing a large group of tiny snails.
  15. Mazon Uncertains - 4 ?

    I think I see body structures here, but I'm at a loss.
  16. Mazon Uncertains - 3 shrimp

    Another Acanthotelson Stimpsoni ?
  17. Mazon Uncertains - 1 jellyfish?

    This looks very similar to one I posted yesterday, but this one has a very defined outline. My guess would be Essexella jellyfish, or possibly coprolite. It's a little bugger.
  18. Mazon Uncertains - 2 worm?

    This could be a leaf of some sort, but if so, I don't think it would be typical of Mazon fossils, so I'm inclined to suggest a worm.
  19. Mazon Uncertains - 10 ?

    Are these leaves or wood, or nothing at all?
  20. Mazon Uncertains - 5 shrimp?

    I always thought this was the digestive tract of a worm, but after taking the pictures, I'm fairly convinced that it's a shrimp of some sort.
  21. Since @Jones1rocks has been posting Mazon Creek fossils for ID's, I thought that I would post two that have stumped me and I would appreciate any help. Both of these concretions look similar to me- the first one I only have a half and the second one I have both halves. Sometimes I think that they are flora and other times I think fauna- such as a shrimp, but I have no clue. I am really leaning towards fauna and I have never found any others that are similar. Here is the one with only 1 half- different views:
  22. Mazon ID Assistance - No.6 ?

    I'm doubting my initial thought that this is a leaf impression. It very much resembles some bark imprint images I have seen, but some of the other visual characteristics are misleading. Any thoughts?
  23. I'm thinking that this is probably Didontogaster.
  24. Mazon ID Assistance - No.7

    I have not seen any definitive images of leaves of this exact shape and pattern yet. The closest I can find is one of RCFossils images: http://www.thefossilforum.com/index.php?/gallery/image/11888-alethopteris-serli-rcmc0058ajpg/&browse=1 Do you think it's the same?
  25. I know I've seen images of this type of creature before, with the obvious oval structure, I think, being a mouth.