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  1. Tidgy's Dad

    Adam's Early / Lower Devonian

    The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these g
  2. rocket

    Reptile Oklahoma?

    Hello everybody I am a bit worried about the fossil I show. We got it many years ago and do not know much about it. As I remember it should come from Oklahoma, Permian. Reptiles. That´s it , nothing more. In my brain are some reminds name could starts with "R" for the Animal, but... What do you think? thanks for support!
  3. Harry Pristis

    Homotelus bromidensis


    A trilobite, Family Asaphidae, Homotelus bromidensis, from the Ordovician of Carter County, Oklahoma.

    © &copyHarry Pristis 2015

  4. Sandfossil

    Trace fossil conostichus?

    Muskogee, Ok USA. Could these be conostichus or something else? I have found many in sandstone but never in shale. These were found about 20' below where I normally find the sandstone conostichus. I am including a picture of some sandstone conostichus for comparison. Would the shale ones be older since they were found in the hard blue shale 20' deeper? Thanks for your help.
  5. Sandfossil

    Trilobite? Help with ID.

    Muskogee, Ok USA While expanding a pond came across this. It reminds me of a trilobite. It is still in the bottom, hoping to get some help with ID. Thank you.
  6. I’m planning my return trip to Lake Texoma and I was wondering if y’all had any suggestions for tools to bring. Preferably batter-powered (no generator) and powerful enough to excavate large ammonites from hard limestone. Explosives, battery acid, and hydrochloric acid are out of the question. I’d settle for gas-powered tools, but only as a last resort.
  7. SoonerAli

    Fossilized Tooth

    I found this fossilized tooth in/near/around the Arkansas River in Oklahoma over the weekend. I’m having trouble finding a match for it online in order to ID it myself. I was hoping someone from this group could help. Any ideas? Thanks in advance.
  8. Hey everyone, I've been recently reading through Mark McKinzie's book, Oklahoma Fossil Localities. It's got tons of useful information and has been inspiring me to plan out some future trips across the red river once I'm back in DFW. Hunting for Permian micros in Waurika is at the top of my list, but I have a few questions about the main site and surrounding road cuts. If anyone could reach out to me via PM to discuss Waurika, I would greatly appreciate it! Thanks
  9. I have found several of these in an outcropping of shale and limestone in the Iola Formation in Northeastern Oklahoma (middle Pennsylvanian). The longest dimension is about 15 mm (≈ 5/8 inch). Some of the other specimens are slightly larger, but all have the same pattern of bumps. (I photographed this one because it shows the least wear.) I’m wondering it might be the carapace of a phyllocarid or some other crustacean. Alternatively, it might be a bivalve or other mollusk. Any help with ID would be appreciated. Focus and exposure were difficult, so there are several images. Best wishes.
  10. T. Roe

    What is it?

    okla fossil_files Ordovicican, Oklahoma
  11. GreatHoatzin

    Permian Reptile Limb Identification?

    Hello all, I recently purchased this fragment of a limb bone of a reptile, which was labeled 'unidentified.' I was wondering if it would be possible to find out what it is, as it is really minuscule. Fossil Info: The fossil is 1.2cm long. According to the seller, it is from the Lower Permian, from the Leonardian Series. It was found in Lawton, Oklahoma, and the formation is the Arbuckle Group. I don't know if this is enough to go on since because of the small size. Thanks!
  12. Hello, I found this in a microfossil sample from Waurika, Oklahoma, which is the lower Permian. I was unable to match it with anything apart from Dimetrodon or Edaphosaurus claws. I'm likely just being hopeful, but compared to teeth from the same site, it would appear to have no enamel. Could this be a claw from one of these? It's extremely small, about 2.5mm across. Thank you
  13. Back in January I decided to check out the Ammonite Beach at Lake Texoma for the first time. The site is well known for its giant Duck Creek ammonites that can be found scattered all over the shoreline. The weather was surprisingly not that bad despite it being the winter. The water level was quite low and there was plenty of good ground to search along. During my time there, I had some success in finding my own ammonites which gave me an excuse to finally put my rock hammer to use. I stumbled upon some echinoids, but none of them were in all that great of condition, so I might need to head ba
  14. I arrived in Texas yesterday for my mom's funeral. As I drove through Missouri and Oklahoma, I was amazed at the roadside geology (I've never traveled this route before.) I didn't have time to stop on the way here, but I may on my drive back to Michigan. I'm curious as to what to expect to find, if I get the chance to do a little hunting.
  15. FINALLY getting around to posting about my first time ever fossil hunting in Oklahoma! Went on an extended weekend with the Paleontological Society of Austin to a variety of locales in Central OK - places I have heard about, read about and dreamed about going! I finally made it! And it was so very worth the drive, even if I did end up with a stupid cold the last two days (the drive home was a little....weird. Cold "fugue" makes for interesting driving- I really don't remember much of it, which is either good or bad....) But the FOSSILS! I've never hunted the Ordovician and Siluria
  16. All, I have been finding a few dermal denticles in Northeast Oklahoma Pennsylvanian shales. Based on published reports and images from our area, I believe these are Petrodus. I’ve attached an image of two denticles I found yesterday. I’ve been looking for images of the entire shark because I’m curious about the animal’s overall appearance; however, I’m only finding images of the denticles. Do scientists know what these sharks looked like, and if so, does anyone know of resources containing overall images? Best wishes.
  17. Had a nice trip with a local club and had a great day collecting malachite and petrified wood. As a bonus surprise gift...... I also found two (what at first glance I think are Permian era reptile teeth.
  18. Brit021

    Is this a fossil

    Does anyone know if this is a fossil my husband found this one in liberal Kansas
  19. I found this fossil while we were out in our keep the other day. There are 2 fossils in one. One looks like a bottle cap and the other looks like a walnut
  20. I was supposed to go to a Permian site in Oklahoma when the Paleontological Society of Austin went a few months ago, but I came down with a cold instead! Yay..... So, my friend brought me back a bag of dirt! Because I love a good bag of dirt! My friend warned me that they didn't have a lot of surface finds, so I wasn't really expecting much, but I was happily surprised by the finds! The color on these fossils is my favorite part- gorgeous reds and purples! I know what most of the finds are, but there are a few unknowns, so if anyone can ID, I'd be thankful! Also, if
  21. I found this along the shore. It appears to be formed in sandstone but the fossil looks like it's the same hardness of fossilized bivalve shell. As you can see in the left side picture the fossil has 5 petals and an empty circular center which is now filled with sandstone. The middle picture shows the fossil dry. The 5 petal like structures are almost invisible when dry. The third picture on the right shows the back side of the fossil. I placed it next to an old penny, they're nearly the same size. If anyone has any info on it I'd love to hear what it's name is. I'm hopping it's a Sand Do
  22. Wildforensic

    Cow or bison bones- oklahoma

    Bones found in Northwest Oklahoma rural farmland. Cow?
  23. Ethan_Y23

    Tooth identification…?

    I have found this tooth back around christmas of 2021 in the creeks of Fort Gibson, Oklahoma and i just cannot seem to find out what it is. i’ve tried reverse image search and google but nothing pops up. My grandpa, who knows everything about the wilderness has no idea what it is. we were looking for arrowheads but i found this instead.
  24. gdsfossil


    I believe these were found in the Lake Texoma area. Any suggestions on what they are and how I might remove some of the sediment would be much appreciated. Thank you!
  25. electricshaman

    Hunton Group Road Intersections

    Attached is a KML file that is the result of mashing the OpenStreetMap road data for Oklahoma up against the Hunton Group polygons from the USGS geological map for Oklahoma. I exported the lines from the roads where there was an intersection between the two. Some of the roads from the OSM data aren't accurate, and others are phantom roads or inaccessible trails. But overall, I think it's accurate enough to be useful. Hopefully others will find it useful too. Please let me know if there are other fossiliferous formations in the state for which you would like to have this type of mashup.
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