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Found 102 results

  1. Fossil ID Sherman, TX

    Hi all, Found couple interesting fossils need help to ID. They were from Post Oak Creek in Sherman, Texas. First four pictures are a tooth of some sort, last three are a half dollar size bone fragment.
  2. Got a new case for some of my Ptychodus whipplei teeth I have found over the past couple of years. Still need one more. Was inspired by a trip with the Dallas Paleo group last week and thought they deserved better than a jar.
  3. My son and I went with the Dallas Paleontology Society to Post Oak Creek Saturday looking for sharks teeth and whatever else. I had my 10X loupe with me. A few times I just picked up a hand full of gravel and just looked at it with the loupe. 1 time I did that, I noticed this in it. Everyone who looked agreed it was a vertebrae, but what kind is it? a few of us are thinking fish, but I'm not sure. So, ant identification on type of animal and age (being from Post Oak Creek, however, found in the gravel bar) would be appreciated. The scale is millimeters. Thanks
  4. Actual pseudo nothing?

    Found this yesterday while out with Dallas Paleo group. Looks like it has to be something. It is very worn but the shape suggests tooth, claw, or rostral. Everyone was stumped. Could be great pseudo fossil but looks too perfectly shaped. Any thought?
  5. curious about this one, perhaps a tooth?

    Recently went fossil hunting for the first time in Sherman, TX at post oak creek. I found loads of shark teeth, but this one though small caught my eye. Doesn't have a root, perhaps it is just a tip; but the general shape is different from all the shark teeth I found. So maybe it is something else (hopefully not just a rock) It is pretty small. Attaching a couple of pictures on from top view, side.
  6. First time hunting, Post Oak Creek

    I went on my first fossil adventure today; at Post Oak Creek. These are my finds.
  7. Mosasaurus tooth?

    Hi all, Am I on the right track here? Is this a Mosasaurus tooth? It was found in Iron Ore Creek in Grayson Co. Texas. Upper cretaceous, Austin chalk runs throughout this area of Grayson co. so believe it's within the same strata as Post oak creek in Sherman. About 15/16" long and 3/8" wide.
  8. Hi all My son and I found this small (1 cm) tooth from Post Oak Creek in Sherman, TX, and are trying to identify it, if possible. Our best guess is a fish tooth (maybe Pachyrhizodus or Xiphactinus) or a small mosasaur tooth. There is a small ridge running lengthwise down the tooth, and the tooth base is oval with a central canal. Thanks!
  9. Not sure what this is ???

    Found the following yesterday while out gathering some gravel in Post Oak Creek. I know its not million of years old but it looks quite a bit older than I am. Any idea what this may be? Thanks in advance David
  10. Spring Breakin at POC

    Spent a couple of hours at Post Oak Creek and boy was it a popular place to be today. There were families everywhere. Spent some time on my own before a guy showed me his piece of a tooth he was proud of and asked me if I had found any teeth there before. I asked him if he had been out to the creek before and he replied that he hadn't. I offered some help and before long I was surrounded by a couple of different families. I helped them find a few teeth to get them started for which they were all grateful. Found a few really nice Ptychodus and let them "find them" as well as a really nice Squalicorax that I let them find and keep. I hoped it would help me with the fossil gods but not so much. Didn't help the juju. Spent an hour and a half walking further up the creek hoping for some untouched ground but that was not to be had. Found a few small nice teeth and rest shards. Always just happy to be digging.
  11. Ptychodus mammillaris?

    Hi all My son and I found this ptychodont tooth this morning at Post Oak Creek in Sherman, TX. I think it's Ptychodus mammillaris; however, I also considered Ptychodus anonymous. A photo (quarter for size comparison) is below. I'd appreciate your thoughts. Thanks!
  12. Hi y'all, Here are the finds from 3 separate half day trips to Post Oak Creek during the first weekend of Feb and from last Saturday. One of those days was spent hunting a new to me part of the creek that seemed to have more trash and glass than fossils. That day I decided to make a move to a more productive part of the creek to collect some gravel that I had promised my nieces so they could do some fossil hunting at home. Also I collected some for myself. Last Saturday @Buffalo Bill Cody and I went hunting. It's was warmer and I noticed several bass swimming in the creek. I'll have to bring my fishing pole for the next outing. The week before last I went canoeing on the Llano River for 4 days where I had the pleasure of seeing some interesting fossils that I'll be posting below. Bare with me. I'm posting from an IPhone.
  13. I came upon this beauty in Post Oak Creek, Sherman; Grayson Co. Texas this past weekend which looks like a very large Armadillo scute. I didn't think that they migrated into the north Texas region? It measures 1 1/2" long and 1 1/8" wide. Cretaceous, Lower Austin / Upper Eagle Ford Formation
  14. Headed to Post Oak with @Buffalo Bill Cody Was a record day for Ptychodus for me with a total of 8 teeth found. Also found 2 good looking mammal teeth not sure what the first smaller one is as it didn't resemble anything I came across online the second is bison/cow leaning towards cow after the revelation in Codys post. Also found this cool Rexall Drug Store bottle with a glass stopper that Cody found later(almost prefect fit).
  15. Head out a few days ago to Post Oak and many of the gravel bars were underwater (see previous post) so I headed back today for some fresh gravel with no footprints. Results were a little better. On the top row are some of the biggest partially complete teeth I've found including the chunk on the far left of what would be a huge tooth(for post oak). Can't wait till I find one of these monsters complete.
  16. Took a trip out to Post Oak Creek today with @Buffalo Bill Cody and another buddy today. It looked like a pretty big thunderstorm had gone through the area last night and we thought we'd try to be first on the scene. Unfortunately I think we were about a day or 2 early because the creek level was way up and many of the gravel bars were still partially or fully under water. I imagine in a day or so there should be some good freshly turned gravel for hunting. Regardless we put on our boots and made the most of it. Sorry for not displaying these better. I found very few undamaged teeth so I put them all on a plate. I did find one nice Ptychodus. Happy New Year y'all
  17. Took a short trip out to Post Oak yesterday. Found my first complete glass bottle. Not sure if it's old or not. It has an S with a circle around it on the bottom. Also was pretty excited to find my first Ptychodus teeth.
  18. I had a fun shark tooth hunt yesterday with my buddy Ron at Post Oak Creek. We both found our largest shark tooth since we started hunting. I found a huge Cretodus especially for Post Oak Creek.
  19. Went out hunting on Post Oak Creek in Sherman TX yesterday with @Buffalo Bill Cody Fond lots of broken off points from shark teeth. Didn't find really have much luck finding complete teeth. Though Cody's luck seemed to be on fire. I did find one pretty gnar bone that seems to be fossilized. I'll post some close up later for ID help. Cody's hunt was more fruitful. I had to jet early to attend my office Christmas party. Here's what I found...
  20. I went to Sherman Texas Post Oak Creek for my second time today to hunt shark teeth. I found a nice variety of fossils and one killer Wilson artifact that is 7,000 - 9,000 yrs old.
  21. Fun day on POC

    Hola! I decided to get up early this morning to head over to Post Oak Creek to see if I could make up for the lack of production on the NSR (North Silted Ridges). I headed over to my favorite spot to sift and after seeing a tooth or two lying on the surface, I decided to walk the entire gravel bar to see what else may be up on top. I came across a monster horse shoe (this guy must have been a beast) and jokingly thought to myself that it meant I was going to have a good day. Well, that joke turned into reality. I walked past where I found the horse shoe and this honker was lying in wait for someone to find. This is the biggest shark tooth by far for me. I felt like a kid on Christmas that just opened his dream present. I believe its Cretodus. Please correct me if I'm wrong. After gathering two 5 gallon buckets worth of gravel, I headed back toward the car and decided to take a breather (10 gallons of wet gravel weights more than 10 gallons of feathers ). While walking around I found the little bottle. I then walked over to another gravel bar and found my first mosasaur vert in the POC. If the POC had the size and quantity of mosasaur verts and teeth that the NSR does, I'd never leave Sherman. Speaking of the NSR, if you haven't been in awhile, you may want to wait. I spent about 6 hours out there this past Thursday and while there is some low lying water in the river and creek beds, all the gravel bars I saw were covered in silt. It's in serious need of a good heavy rain and I'm waiting till then before I go back out. David
  22. Ostrea alifera var. pediformis Craigin

    This is a Cretaceous oyster that I found in Post Oak Creek in Sherman, Texas. The oyster has traces of a yellowish calcite-cemented sandstone found in the upper part of the Arcadia Park Formation of the Eagle Ford Group. "Pediformis" in the name, Ostrea alifera var. pediformis, means foot-shaped or pediform because the oyster looks like a foot or boot. In "The Lower Cretaceous Gryphaeas of the Texas Region", Bulletin of the US Geological Survey #151, 1898, author Robert Thomas Hill eliminated the Ostrea alifera Cragin, and Ostrea alifera var. pediformis Cragin names because he considered them to be Ostrea lugubris Conrad. I disagree with Hill's decision because my oyster is larger than most O. lugubris (now Cameleolopha lugubris) and lacks an attachment scar characteristic of O. lugubris. My oyster may be a genus Cameleolopha since both Cameleolopha bellaplicata and Cameleolopha lugubris occur nearby. Unless new information can be found, my oyster should be called: Ostrea alifera variety pediformis Craigin. For more information and drawings of Ostrea alifera and Ostrea alifera variety pediformis Craigin see: Cragin, F. W., "A Contribution to the Invertebrate Paleontology of the Texas Cretaceous", Austin, Texas, B.C. Jones & Co., State printers, 1893.
  23. Post Oak Creek

    My first trip to post oak creek was fun. I found a nice variety from large mystery vert, Gastopods to connected fish verts and lots of shark teeth.
  24. Post Oak Creek, Texas Oyster

    What is this Cretaceous oyster that I found in Post Oak Creek in Sherman, Texas? Most oysters in the creek come from a yellowish calcite-cemented sandstone from the Arcadia Park Formation of the Eagle Ford Group. It is about 48mm in length.
  25. Coral

    Here is an unidentified semi-spherical colony of stony coral, collected in Post Oak Creek in Sherman, Texas, This is the largest colony that I have found at the site. The colonies range in size from 2.5cm to 4cm across. The coralites range from 4mm to 6mm across. This specimen has traces of the oyster, (probably Cameleolopha bellaplicata) that it grew on since the muddy Arcadia Park Formation did not provide a suitable hard ground. Other specimens of the coral also all grew on oysters. Traces of yellowish calcite cemented sandstone clings to the coral. The coral occurs in a yellowish calcite cemented sandstone in the upper part of the Arcadia Park Formation that may be related to the Bells Sandstone in eastern Grayson County. Numerous Cameleolopha bellaplicata oysters and lesser amounts of small bivalves occur at the site. Numerous shark teeth and other vertebrate fossils also occur with the coral. An unidentified ramose bryozoan also grows on the oysters in the area. Although unidentified, this coral looks a lot like Hindeastraea discoidea (which occurs in the yellowish calcite cemented sandstone layers in the upper part of the Arcadia Park Formation) as found in this reference: "Hindeastraea discoidea White from the Eagle Ford shale, Dallas County, Texas", : Fondren Science Ser., no. 2, 11 p., illus by Bob Frank Perkins. Try this link for the pdf copy: https://sites.smu.edu/shulermuseum/publication_pdfs/fondren_sci/v2-Perkins1951a.pdf Also here is a link to Hindeastraea discoidea White, 1888, holotype (left) and paratype: http://www.corallosphere.org/taxon/721 The original publication on Hindeastraea discoidea is: https://books.google.com/books?id=H33u7anq2SwC&pg=PA363&lpg=PA363&dq=Hindeastraea+discoidea&source=bl&ots=0llhetALED&sig=JdRP8rsUCaKjZjCbSFCXO4ibBIY&hl=en&sa=X&ved=0ahUKEwjLidvOl6zPAhUG5GMKHd3EDjYQ6AEIPjAH#v=onepage&q=Hindeastraea discoidea&f=false Please let me know if you know what species this coral is.