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  1. freerangetraveler

    North Texas Creek Hunt

    Hello all, I spent the morning in one of our local creeks here in north Texas and pulled a partial ammonite fragment, a bivalve imprint and some sort of clam… With that said, I was wondering if anyone could help identify the clam species (last three photos) Cheers!
  2. 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
  3. Creek - Don

    North Texas shoe shaped bivalve

    I found these shoe shaped bivalves on highway roadcut near Justin, Tx. I think I've seen these before, but forgot the name though. Can anybody put a name to these bivalves? They were found on limestore layer above the grey clay layer. Fort Worth Limestone and Duck Creek Formation undivided. They measure around 6 1/2 inches by 3 1/2 inches/15.24cm x 8.89 cm.
  4. historianmichael

    Duck Creek Formation Shark Tooth

    Over the weekend I found this tiny (~3mm) shark tooth on a loose rock at a site exposing the Duck Creek Formation (and maybe the overlying Fort Worth Limestone). I have tried to match it with the teeth in The Collector's Guide to Fossil Sharks and Rays From the Cretaceous of Texas but the closest I have been able to get is Squalicorax sp. and even that doesn't seem to quite match and the book states that Squalicorax in the Texas Albian have only been found in the Weno and Pawpaw Formations. Unfortunately it only seems like the blade of the tooth is preserved as there is a bit of a lip where th
  5. Hey everyone! I thought I'd share a few of my finds from the past couple months and get yall's opinions. Over winter break, I went back home to North Texas and did some searching around Ammonite Beach at Texoma and the NSR with my family. At Texoma I had a nice time hammering out a few ammonites, collecting teeth, and surprisingly finding lots of smaller, pyritized ammonites that I did not expect to be there. The NSR was a bit slower, but I at least got a nice Squalicorax as shown in the pics below. Since school has started, I've been down in Austin. I've been finding the usual stuff, but the

    Leptostyrax macrorhiza

    From the album: Favorites

    Shark. Leptostyrax macrorhiza from Texoma, Duck Creek Formation. 1/8/22


    From the album: Favorites

    Ammonite. Mortoniceras from Texoma, Duck Creek Formation. 1/8/22
  8. OK, I missed the Fossil Friday post by a day. The cold weather lately has kept me indoors and away from fossil exploration, so here is a partial prep of a partial ammonite from the Lake Texhoma Duck creek fm. Prepping something no true separation of "fossil" and matrix is quite challenging, especially considering how well they can, at times, weather out and become separated naturally. The matrix seems to be getting harder to separate as I move toward smaller sections. I can make out that this does have the inner whorls , so I dont want to blow them out. This has really slowed me down on t
  9. hadrosauridae

    Texas-sized ammonites

    Happy Fossil Friday everyone! In today's video offering, I sneak across the border into Texas to hunt for those Texas-sized ammonites, and I met another YouTuber on the way.
  10. hadrosauridae

    Video of Lake Texoma hunt

    Fossil Friday! Today's FF video post is from Lake Texoma. We made our first ever trip to lake Texoma to search the duck creek formation for ammonites. After much research and planning, we arrived to find we could not access the locations we wanted, so we ended up scouting around. It turned out well and we found some great fossils including ammonites, oysters, clams and echinoids.
  11. hadrosauridae

    Texoma Duckcreek fm hunt

    Yesterday, my son and I finally made a day-trip to Lake Texoma for some fossil hunting. We've been wanting to make this trip for while, but it can be difficult between both our jobs and weather, and lake levels. I planned for this trip by searching the google maps for good looking locations with a nearby shore access. Unfortunately, one spot turned into a private drive, and the other was closed off by the Corps of Engineers for some unknown reason. We didnt want to hit the same spot that everyone else goes to so we began just driving and looking. The first place we stopped was
  12. low temp geochemistry

    Duck Creek Fm fossil mystery

    I'm stumped on this find. Interesting line of symmetry runs through the fossil. Found in approximate location of a 2' diameter turtle back shell. It's not a bivalve I've ever seen. Sure looks like a vertebrae however the spinal cord would not have been closed on the anterior. What is it? Suggestions?
  13. facehugger

    North Texas Vertebra

    Hey y'all. Long time since I did a post. Hope everybody is well. Found a vertebra in a duck creek exposure, Grayson County, Texas. The hexagonal shape has me wondering - is this possibly ichthyosaur material? Many thanks. BTW - the new features and UI totally rock!!! I was able to do this entire post from my phone. Great work, y'all!!!
  14. Creek - Don

    Lake Texoma early Cretaceous oyster

    Duck Creek oyster ID please. This was the only one found in this area. I found numerous other early Cretaceous bivalves in Lake Texoma like Amphidonte walkeri, Graphea, Neithea.
  15. Creek - Don

    Xiphactinus Vertebrae?

    I posted this while back, but no ID yet. I'm thinking this is a Xiphactinus vertebrae. Anybody agree?
  16. Creek - Don

    Duck Creek Formation oyster ID

    I found these two oysters few weeks ago near Lake Texoma ( Early Cretaceous). Still trying to figure out what it is. I saw a similar oyster called Pycnodonte vesicularis (Lamarck, 1806) , but not 100% sure. I see a paper published for Pycnodonte vesicularis that was found in S. America. An assessment of latest Cretaceous Pycnodonte vesicularis (Lamarck, 1806) shells as records for palaeoseasonality: a multi-proxy investigation https://www.clim-past.net/14/725/2018/cp-14-725-2018.pdf
  17. Hi all. Last week went on a trip to Lake Texoma and surrounding creeks then to report what I have found so far. As I was walking through these layers, I saw exposed sea bed full of ammonites, bivalves, oysters, fossil fish vertebraes, shark tooth, etc. I also noticed there were fine layers of volcanic ash deposits on some of the rocks that were laid down during this era. Due to these activities, bottom of the sea were occasionally became anoxic There were also ancient white mineral that were still coming out of the ground which I assume is the salt mineral. These layers are around 90 mil
  18. Creek - Don

    Unknown shells

    What is this? I found these pieces next to a creek on duck creek formation nearby Lake Texoma. It appears to be a shell, but doesn't look like any other shells I found elsewhere.
  19. I found some vertebrae and tooth from a creek that were flowing next to the Lake Texoma today. Those tooth looks like shark or fish tooth. Not sure about the vertebrae though. It appears to be a cretaceous fish. Also on long tooth, not sure whether that's a fish or not. All of these were found next to washed out duck creek grey sediment.
  20. Creek - Don

    Fossilized cretaceous sea worm?

    Found small sea urchin next to the ammonite in Lake Texoma Duck creek formation over the weekend. While I was cleaning the sea urchin, I noticed something that caught my eyes. It appears to be a small worm that lived in Cretaceous sea, gotten attached to the sea urchin and fossilized at the same time. Anybody familiar with sea worms like this?
  21. A friend found what looks like a bone in the Lower Cretaceous, Duck Creek Formation of Cooke County Texas. The site yields marine fossils like the ammonite Eopachydiscus marcianus. We have also found some fish parts and a tooth and paddle bone from an ichthyosaur. She plans to join TFF soon but asked me to post this for her.
  22. facehugger

    Macraster side view

    Post prep, heart urchin, Macraster sp., from Duck Creek formation, long side view.
  23. facehugger

    Macraster sp

    Post-prep, heart urchin, Macraster sp., from Duck Creek formation in north Texas.
  24. Perfect Castaway

    A few ammonites I need an ID for

    I went on a field trip with the Dallas Paleo Society about three years ago and haven't got around to IDing some finds. After searching through the back issues of The Fossil Record I think it was the Duck Creek formation which is upper and lower Cretaceous. Any help on these would greatly appreciated. Also, I'm on mobile and trying to resize my images so let me know if these are too small.
  25. KimTexan

    Duck Creek Formation ammonite ID

    I found this ammonite yesterday in what I believe was the Duck Creek Formation in Grayson county, Texas. I think it looks a bit like the Oxytropidoceras, but I didn’t realize they were found in that formation. Can anyone give me a little direction on ID of it? I haven’t taken other shots yet, but it is very thin for how large it is. Maybe an inch thick. I’ll measure it tomorrow, but it’s at least 10 inches in diameter. I’ll post more shots tomorrow. The other side has a nice view of the sutures.
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