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Found 92 results

  1. 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!
  2. 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.
  3. 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
  4. 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).
  5. 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.
  6. 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
  7. 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.
  8. 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.
  9. 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...
  10. 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.
  11. 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
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. One of my best yet

    Haven't been to Post Oak Creek in a couple of months since I have been traveling, but decided to pay it a trip today. The area was well trampled but I found a couple of teeth quickly so I hoped that at least it had not been picked over too badly. Spent a couple of hours and found lots of broken teeth and a couple of really nice examples. The best of the day was inches from a deep footprint so close to being trampled. A complete Cretodus crassidens. It is just shy of two inches and a beaut and one of my best yet.
  17. Post Oak Rainy Summer Day

    So, a storm managed to chase me and a few others off the gravel bar at Post Oak Creek but we came back for a second round. It was cool and overcast, muddy and perfect for fossil hunting. I was up to my ankles in creek water but I managed to find a few fossils and shark teeth. In addition to classic Post Oak shark teeth, I think I may have found a portion of a Ptychodus Whipplei tooth. I also found a shark centrum and a bone fossil...but it's a mystery as to what it is...about 1.2" long. Opinions welcome!
  18. Spent a couple of early morning hours on Post Oak Creek this morning trying to beat the heat. We had a little rain the other night so I figured I would give it a shot. Someone posted a couple of weeks ago about snakes but I can tell you I saw less than usual, zero to be exact. The bigger issue is finding access. The usual spot was grown over and the only option was to go down on your rear which doesn't bother me much but once I slid down the challenge was to find a way up the slippery clay but that was something to worry about later. There was an abundance of teeth. There were tons of small foot prints that looked fresh so someone must have been out there yesterday after the Saturday night showers. They must have found the good ones but I did get a good haul of broken teeth with a couple of complete teeth for the display jars. Found a few bone fragments, a partial lobster, three gastropods and a nice bottle.
  19. Cameleolopha oyster with an unknown coral

    From the album Grayson Co. Texas finds

    Cameleolopha oyster with an unknown coral. Post oak creek, Sherman, Tx. Lower Austin./ Upper Eagle Ford
  20. Cameleolopha oyster with an unknown coral

    From the album Grayson Co. Texas finds

    Cameleolopha oyster with an unknown coral. Post oak creek, Sherman, Tx. Lower Austin./ Upper Eagle Ford
  21. Post Oak Potpouri

    Have been in Europe the last two weeks and have been itching to get back out. I heard it has rained while I was gone and thought I would try my luck at Post Oak Creek. It was pretty dug up when I got there but some of my best finds are in others spill piles. Shark teeth were plentiful but quality was poor. Most were broken but I did manage to find a couple of complete Squalicorax. I only spent about three hours but found a few cool items besides the normal shark teeth. One appears to be possible coprolite and I found a nice piece of mosasaur bone as well as a horse tooth. I was also surprised to find the first Echinoid I have ever found at POC. When I picked it up, I was even more surprised to find out it was not just one but two Echinoids and a partial third together in matrix. Attached are some pictures of the day's load.
  22. I have been to Post Oak Creek a few times now and always had fun, but this trip was especially interesting. I was trying to make my way up creek via the shallow parts of the water. It was higher than I expected so I was trying to keep from getting stuck in the mud and going in waist deep water. I glanced over to the side of me and saw a gar about two feet away from where I was crossing. After a moment of shock I quickly got on the bank. I had no idea a gar would be hanging out right there. I was in that spot for about 4 hours and he just sat there with me the whole time. My goal was to head up creek some more, but the water was deeper and I was not going to take the chance of stepping on one his buddies. I had no intention of shaking hands with him (or fins for that matter). He finally swam up creek when I entered the water to go back to the bridge. He was about 3 feet long. Here are some teeth I found that day.
  23. Post Oak Creek Bone ID Help Please

    I made a trip to Post Oak Creek over the weekend and found 2 pieces sitting on the rock bank. They look like Mosasaur, but I am very new to identifying fossils. Any help with identification would be greatly appreciated. The ruler is in inches. On a side note, I also had a gar watching me the whole time I was there which was a first for me. I will post pictures of him in the Fossil Hunting Trips section.
  24. Post Oak Creek Microtooth ID help

    I brought home a bucket of gravel from Post oak creek in Sherman Tx. to sift through, and came across this beauty. The size is approx. 1.5 to 2 mm.
  25. Hello all, I'm still a newbie to all this so I was hoping that some of you may know some different entry locations for Post Oak Creek in Sherman, Texas. I have entered at the Travis St Bridge and the Sherman Healthcare Center. The Healthcare Center was recommended by a local I ran into on my last trip. He said he has entered there regularly so I gave it a shot. There was a lot of glass and trash in that location so extra caution should be taken in that area. Can anybody recommend any other entry locations? Hiking is not huge concern I was just hoping for ideas. Has anyone ever parked at Binkley Park and searched Sand Creek? Is there anywhere around Post Oak that is unfriendly to hunters? I promise to leave some teeth for all the other hunters out there (but I would love to find my first arrowhead). Thanks in advance.
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