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Hello all! A batch of new unknowns found in my micro matrix! Any help will be appreciated! Cretaceous Eagle Ford formation. 1. Interesting geometric pychnodont tooth? I know they can be rectangular, but this one is oddly shaped. Size 5mm 2. Strange "fat" tooth". It looks sharky but the width of the base is throwing me for a loop. Perhaps the cusplet of a bigger tooth? Size 5 mm 3. An odd striated tooth. Size 6 mm 4. A very pointy something. I thought it was a Scapanyorhynchus tooth at first, but it's not quite right. Seems more "fishy". Size 6mm 7. Not even sure what to make of this. It has bone texture, but also other stuff? Size 8mm 8. A weird little double pointy thing. Those two sticky up "stalks" are just strange. Size 2 mm 9. Thinking this might be turtle? Very small though. Size 12mm 10. Lastly, a little vertebra that might be snake Size 7mm
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shark teeth, left corner is a couple of ptychodus teeth, a black, tiny gastropod. I think on the right are just brown concretions. Below is a large view of bivales. Gryphea at top left a clump of gryphea top right. There's an ammonite tucked in there on the bottom right. At the top gryphea. Others are various bivalves. A black gastropod toward the middle. The brown peanut thing is a concretion.
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Post oak creek teeth! Am thinking cretodus, cretolamna, and cretoxyrhina respectively.
Jared C posted a topic in Fossil ID
Hey all, I'm over the moon to say that my long pursuit of shark teeth was temporarily satiated a few days ago, with a trip to post oak creek that my non-fossil hunter girlfriend surprised me with (...i guess i must talk about it a lot, lol) so that we could take our minds off finals. Unfortunately, we were only able to hunt for an hour and a half, max - the area was supposedly set to be walloped by hail soon after we arrived. This was more than enough time to find probably around 30 teeth though, and a few really stood out. Here are some teeth that I can make an educated guess on, but to be sure, I'll ask you guys Tooth 1: My thought is on some Cretodus species, simply due to size - I can't tell, but it seems it's not as wrinkly at the base as I heard it needs to be to be able to easily tell it apart from Cretolamna. (also, the best tooth I've ever found, what a heart breaker missing the tip!) Tooth number 2 - my thought is Cretoxyrhina mantelli - I'm most comfortable trying to ID this one, but I'd rather be sure. Tooth number 3: My thoughts are Cretolamna, (maybe appendiculata?). But, for all I know, this may be some Cretodus species as well. Now for reference to size, I'm a little lost because the only other place I've ever managed to find teeth before is the waco pit, and there are no large teeth there, supposedly because it was a site of lagoon dwarfism. Because of this I don't really have perspective - so, are these teeth of average size for their species?Large? Small? Thanks for any input.- 4 replies
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Hi all! Found this odd little vertebra in my Post Oak Creek micro matrix. I assume it's fish, but the small end and the big end have me a bit confused. I am not too knowledgeable in vertebrate material so any help will be appreciated. Thanks! It is 8mm x 5mm
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Good morning! Found this little interesting tooth in my Post Oak Creek matrix. Did a bit of online research and have concluded (tentatively) that it is a vole molar, possibly Pleistocene? I don't think it's modern because of the coloration. I have seen that fossil rodent teeth have been found in POC matrix. What do y'all think? Size 4mm
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From the album: Post Oak Creek
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From the album: Post Oak Creek
This bone is almost identical to mosasaur bones found in the NSR, despite being from a different formation a few million years older.-
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From the album: Post Oak Creek
Not broken - just significant feeding wear.-
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From the album: Post Oak Creek
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From the album: Post Oak Creek
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From the album: Post Oak Creek
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From the album: Post Oak Creek
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Hey y'all! Was wondering if I could get some help ID'ing this tooth that I found in Post Oak Creek this evening. I asked the Dallas Paleo Group on FB and a couple of people said it looked maybe human (also pig), but I am not that lucky lol (not that I am saying they are wrong or that I don't value their ID! I don't know enough on the subject to draw a conclusion) I thought I would come here for some second opinions <3 Please ignore the dime. And thank you in advance. I fully expect it to be a deer or cow or something xD (I only just posted in the FB group about an hour ago so the discussion is still going)
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Found this crazy polka dot shark tooth in my Post Oak Creek Matrix! I wasn't sure what it was at all until I got pics.....it's a bryozoan! It arched a little over onto the back side! It's been a Bryozoan kind of week....found this cool critter in the Glen Rose Formation. I put it in my "Big Uglies" collection - a Chlamys bivalve with lots of other organisms on it....including this interesting bryozoan!
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Post Oak Creek Microfossil Matrix for Trade
ThePhysicist posted a topic in Member-to-Member Fossil Trades
I'm offering for trade about half a gallon of microfossil matrix collected from Post Oak Creek, Sherman, TX. It's rich in marine fossils from the Late Cretaceous Interior Seaway (Eagle Ford Group ~ 90 Ma). I cannot guarantee what you will find. I however can comment on what you can find based on my experience with this site. Sawfish oral teeth are very common. You may also find a variety of sharks' teeth, with about 8 genera that I've found so far in similar matrix (Squalicorax, Cretoxyrhina, Cretodus, Cretolamna, Ptychodus, Scapanorhynchus, Hybodus, Cantioscyllium, ...). Reptile teeth are uncommon. You can find a few larger shark teeth in the coarser portion, but they will likely be incomplete. I also have a small sandwich bag partly full with finer matrix (basically sand) which should contain small prizes like shark denticles. Pleistocene fossils are also mixed in, so you can find mastodon enamel next to a Cretaceous shark tooth. There is no processing required; virtually all of the fossils are loose in the gravel. I will ship to the continental US only. See this album for a more comprehensive view of the kinds and quality of fossils you may find. Here's what I've found before, hunting matrix like this: * Shark teeth, vertebrae, and denticles (~ 8 genera) * sawfish oral/rostral teeth and denticles (~ 2 genera) * fish teeth and vertebrae (Enchodus, Hadrodus) * guitar fish teeth, and denticles(?) (Rhinobatos, others) * squamate reptile teeth (mosasaurs, coniasaur) * crustacean claws/bits * clams/shells * pleistocene mammal (mastodon enamel, vole, etc.) I'm looking to trade for dinosaur-bearing micromatrix (doesn't need to be processed). For example, from Hell Creek Fm., Lance Fm., Judith River Fm., or Two Medicine Fm. I'm also open to other unlisted formations. Alternatively, if you have a decent dromaeosaur tooth you're willing to part with, I'm all ears. Please PM for offers or additional information. Thanks for looking!- 1 reply
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Here are my son’s finds. Turns out he found more than me and had better representative teeth. He had a real good eye on finding them, even without the strainer pan. My “readers” would not let me do the same. That is my excuse, lol.
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A lot of what I learned from the trip, was learned here on the Forum. Thank you very much!! Went 1/2 of a day on Saturday, and 1/2 Day on Monday. 5 hour drive from South Texas but worth it. Made the trip with family, they have finds of their own. Not sure of what I have found here. Any help with identifications would be appreciated. The shark teeth are in rows of 8. Part 2 and possibly Part 3, will be posted later plus our first trip to NSR!!
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From the album: Post Oak Creek
Hard to see any striations, but it may be Cretodus sp. : http://www.thefossilforum.com/index.php?/gallery/image/51613-‘button-nose’-posterior-cretodus-crassidens-south-dakota/&browse=1-
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From the album: Post Oak Creek
Largest three teeth likely from Scapanorhynchus sp. No idea on the smallest one.-
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Howdy All! More Post Oak Creek little fossils that I could use some help with ID please! Thanks! 1. First is this little tooth: 1/4 inch Front Back from the top 2. Another tooth or is it a denticle? - 1/8 inch 3. Is this coprolite or a worn gatropod? 4, something "fishy"? 1/8 inch 5. No idea what this is! Size 1/8 inch 6.And last one. Another fishy bit? 1/16 inch Thanks!!
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I went back to a new spot on POC and found the typical array of broken shark teeth, a few Ptychodus teeth, and some interesting items I'm not really sure about. Anyone have an idea of what the item in pictures 6-8 are? What about 9-11 maybe coprolite or a fossilized crustacean? The item in pictures 12-14 appears to be a tooth but with no enamel I didn't think it was a shark tip. It could also just be a piece of bone or something. Sorry for the poor picture quality of that one but I will take better ones of it later. Im pretty sure picture 15 is a rudist and lastly the item in pictures 16-18 I think is just a coincidentally formed rock. The rest of the pictures are of some cool items like the shark or fish verts, the small fossilized crab claw, a broken piece of sawfish rostrum, and a few cool pieces of matrix with inclusions. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.
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Found this little critter in my Post Oak Creek matrix. I'm guessing fish tooth? Thanks for any info! (I'm including lots of pictures because it is just odd from all angles) It's 6mm Top View Opposite End Underside Topside
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Here are my finds from my latest visit to Post Oak Creek. The first few pictures are of the shark teeth. Items 4-7 im assuming are part of a Mosasaur vertebrate? Items 8 and 9 are some type of mammal tooth. Not sure if it is modern or not. Finally item 10 is picture of what im assuming are modern mammal teeth. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
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From the album: Post Oak Creek
Nice array of colors. The biggest one here is the largest I've found to date at about 5 mm in its longest dimension.-
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From the album: Post Oak Creek
Very narrow tooth with serrations indicates it must be Squalicorax sp.-
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