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  1. ThePhysicist

    6/17/21 Trip

    From the album: Post Oak Creek

    Nothing extraordinary, but I found an area with several chunks of matrix with teeth in them.
  2. Dear Fossilforum members, I was wondering if the echinoid on this piece of matrix is indeed a Gauthieria radiata and if so, does that appoint this fossil to the lower, middle or upper Turonian? The shark tooth is a Squalicorax falcatus and the piece was found in the Ardennes departement of France. I know the age of a few locations nearby, but the age of the location where this piece is from is nowhere to be found in literature. I also am not sure if I may say where it was (it took a lot of questioning to find out where it can from haha). Therefore I hope that the echinoid perh
  3. JM260676

    Posterior Squalicorax tooth

    Hello, I have a squalicorax tooth, it is posterior. Is it rare, and if it is how much would it cost
  4. I’ve had Big Brook and Ramanessin on my shark tooth hunting list for a while and finally made it up to both today. It’s a 6-hour roundtrip drive from where I live and with the days still pretty short this time of year, I had originally planned to spend my limited time just at Big Brook. After an hour-and-a-half of mostly striking out on shark teeth there, however, I decided to head over to Ramanessin, which both @Bob-ay and @PaleoNoel had recommended. Luckily, the two spots are only about 10 minutes apart, so I didn’t waste much time in transit, and I was rewarded with much better gravels at R
  5. This last weekend I hit the NSR along with the crowds and decided to start at the Ladonia Fossil park. I got there shortly after dawn and already there were several groups of people down in the river. I don't mind walking in others footsteps and in fact quite a few of my good finds have been within feet of where others have already walked so I started off and within about an hour of slipping and sliding around on the marl I found two of the ugliest associated mosasaur verts I've yet to lay eyes on. Maybe they will clean up nicer than they look now but in my experience the preservation in the h
  6. I'm wondering what the rounded fossil might be? The place it was found contains mostly sand, and smaller shark teeths here and there. I think later createous? Really small shark teeth sometimes, not more than 2-3 mm sometimes. The rounded fossil is about 1cm on the long side. It might just be a pebble, or a fish tooth or a gastric stone, or a miss-grown shark teeth? I really don't know? I'll add some of the shark teeths for reference so you guys know the setting it was found in.
  7. Hello forum members! With the new Coronavirus raging across the world, I thought it would be nice to start some kind of advent calendar, using my own Squalicorax collection. Everyday I will post one or multiple Squalicorax teeth from one location. Let's see what ends sooner, my collection or the virus outbreak. I will start with the oldest tooth from the Albian substage and end with the teeth from the uppermost substage; the Maastrichtian. The first one is the oldest and also one of the smallest teeth in my collection. Unfortunately it is so sma
  8. I'm a newbie who lives in the Austin area with a lot of passion for ancient life, but I'm having trouble making a decisive start with with my searches. I have a particular interest in large western interior seaway predators, most notably xiphactinus, but also the mosasaurs and sharks that lived in the area as well. Finding a vertebrae, of perhaps even teeth from these groups would be absolutely wonderful, but of the few creeks in the Austin area I've scouted, I've been able to turn up nothing besides gastropods. This is still despite heavily studying the sometimes confusing Texas geological ma
  9. ThePhysicist

    Squalicorax Symphyseal

    From the album: Post Oak Creek

    Very narrow tooth with serrations indicates it must be Squalicorax sp.
  10. ThePhysicist

    Squalicorax pathology

    From the album: Post Oak Creek

    Notice the dimple, not sure what caused it...
  11. Here are the Squalicorax sp. shark teeth I mentioned in my earlier post. As with the others, these didn't come with specific location information, but were most likely collected in the North Texas area. My IDs may be way off, so please correct me if I'm wrong. Thanks for looking! The scale in the photos is in centimeters. #1 - Squalicorax baharijensis #2 - Squalicorax pawpawensis #3 - Squalicorax falcutus #4 - Squalicorax sp. - I'm not sure what species this might be. The blade is finely serrated
  12. Darbi

    Squalicorax sp.

    Recently I purchased these two Squalicorax sp. tooths from an auction website and both are currently on the way. I have a few questions about identification since I know very little about shark tooths and also please correct any misidentifications. Seller A sold me this tooth and it was listed as Squalicorax hartwelli. It is collected from Niobrara formation in western Kansas. Is Squalicorax hartwelli considered a variation of Squalicorax falcatus? Do you agree with seller A's identification above? Seller B sold me this tooth and it was li
  13. ThePhysicist

    8/16/20 Trip

    From the album: Post Oak Creek

    Didn't find much this time. I don't think it's rained in a while - the water looked stagnant. Also was picked over well. Favorite find is the mostly complete Cretodus (found it under a fallen tree).
  14. Hello everyone! I am looking for Squalicorax (Any species) to help aid in the research I am doing for my University. I'm looking for a bulk amount or Squalicorax hartwelli from Kansas, or anywhere in the Western Interior Seaway. I am also looking for Squalicorax falcatus from the Southern U.K., France, Belgium, and/or Morocco. Any complete or near-complete Squalicorax you have that you are willing to part with, please contact me. I am a college student. I have lots of shark teeth that I can trade, including: - Megalodon shark teeth and meg ancestors ( angustidens, chubutensis, obliq
  15. ThePhysicist

    9/28/19 Trip

    From the album: Post Oak Creek

    I found less stuff than last time, but I found a nice centrum and a shard of a mosasaur tooth. A couple teeth grouped with Scapanorynchus may be Serratolamna sp.
  16. So, I came across yet another bag of teeth I had collected back in the 90's (I HATE being able to say "back in the 90s" like that) and packed away for later perusal. Now, what I did not do, which I usually do, is mark the bag as to where I collected it. *sigh* Luckily, there are only 2 places I have collected Squalicorax. Green Mill Run and Cape Fear river. I am relatively certain these are from GMR as I collected in Cape Fear later than the 90s and this was in a box packed before that. Plus they just dont look like the stuff I got in Cape Fear.
  17. Here are my new fossils! And how my collection looks now. For size comparison the enchodus tooth to the right in the picture of the entire collection is 5,6cm long (2.2 Inches long)
  18. Captcrunch227

    COVID Containment Collecting

    After spending a great deal of time in the house lately do to COVID and days and days of rain, I took the family on a nice leisurely walk to our favorite hunting spot on this beautiful North Texas day. While the kids wwere off collecting some beautiful Turitellas and oysters, I had only one thing on the mind, shark teeth. Cretalamna seems to dominate this site, however some large Cretodus semiplicatus have been found. A Ptychodus latissimus and 2 Plesiosaur teeth have also been found at the site, filling us with hope on each trip for an incredible find. The trip was a p
  19. Chase_E

    Squalicorax hartwelli

    From the album: Texas Cretaceous Shark teeth and Other Marine Fauna

    Squalicorax hartwelli (Cope 1872). Slant length indicated by longest side.
  20. Chase_E

    Squalicorax aff. pristodontus

    From the album: Texas Cretaceous Shark teeth and Other Marine Fauna

    Squalicorax aff. pristodontus (Agassiz 1843). Slant length indicated by longest side.
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