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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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From the album: Post Oak Creek - February 20th, 2022
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I made another trip to Post Oak Creek yesterday morning. I explored a new spot on the creek for the first time. We had some rain and snow in the area last week, but I don't expect it was enough to raise the creek level too much, or wash out much new stuff, but it definitely had everything muddy yesterday. I was surprised that, on this 70 something degree day, there were still spots of snow in shady parts of the creek, over a week after our only snow of the year. It was obvious that there weren't as many teeth in this segment of the creek, and I didn't find any larger teeth. But like other parts of the creek, there were teeth, along with other interesting stuff, to be found.
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Just got a new batch of Post Oak Creek matrix (Texas Cretaceous) and am ridiculously excited that I might have maybe found a Mosasaur? Or....am I kidding myself and it's really a fish tooth! Expert opinions needed please! 1/4 inch 5mm Tried to get as many shots from various sides. it seems that one area is broken off a bit from point down Bottom
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I made another trip to Post Oak Creek yesterday. I visited a spot on the creek where I'd already been twice last year, in the first months of my fossil hunting. The conditions the second trip were much like yesterday, months of low water and very picked over. I didn't find much that second trip. But I suspected that I have become much better at spotting tiny teeth on a gravel bar, and went back yesterday anyway. Judging from what I found, I must have been right. There were lots of broken teeth again, and nothing spectacular or unusual enough to justify a post, but I do enjoy documenting my trips, and have a question about one of the bones, so here I am. First, some in situ photos. The tooth in photo 6 is pretty hard to see. Hint: it's a Ptychodus tooth.
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While my prime focus is essentially learning how to accurately describe Nature in the precise language of mathematics, I've always been intrigued by natural history - it's actually what started me on the path to physics. The sort of interrogation that paleontology practices provoked me to think and question even further, down to the fundamental science which makes it all work. Collecting fossils has brought a large amount of enjoyment to my life, and is often a welcome distraction from what can sometimes be straining work. The knowledge that I accumulate along the way is also part of the fun. Here is my collection, which will always be a work-in-progress. There's still many things I haven't photographed yet, but I feel comfortable saying this is the majority. I don't have many big things, but I'm certainly pleased with the many small things I have so far. Links to albums: Dinosaurs Sharks North Sulphur River Post Oak Creek Permian Aguja Formation Harding Sandstone Devonian Galveston Fossils Miscellaneous Highlights / Personal Favorites: The ones underlined are linked to their respective fossil page in the Fossil Forum Collections, which has more information and photos. Infant Tyrannosaurus rex posterior tooth If I could keep only one fossil, it would be this one. It's from my favorite animal that has ever lived, and being from a young'un is just so darn cool. A true crowning jewel in my eyes. Juvenile Tyrannosaurus rex maxillary tooth Again, you can't go wrong with T. rex. It doesn't have the best preservation but regardless, there's a lot more to love. Tylosaurus proriger tooth (self-found) Undoubtedly my favorite find to-date. Finding fossils yourself adds that extra value to its place in your collection. I'll remember the moment I first saw it for a long time. Triceratops prorsus tooth Triceratops is another one of my favorite dinosaurs, I think we all grew up playing with toys of T. rex and Triceratops. Unique circumstances also allow for me to say it's Triceratops and not Torosaurus with some confidence. It's not perfect, but still a significant part of the collection. Avisaurus archibaldi tooth A bird tooth? Doesn't get much cooler or more uncommon. Dimetrodon cf. limbatus tooth I've always been drawn to "icons of life," since those are the ones we remember from childhood. Dimetrodon is definitely an icon, and I'm glad to have found one of these uncommon treasures (in micromatrix - it was a very nice surprise). Cretoxyrhina mantelli tooth One of my favorite shark species, the "ginsu" had sleek-looking teeth, ate mosasaurs and dinosaurs, and was overall a formidable animal worthy of admiration. Cretodus crassidens tooth (self-found) Another one of my favorite sharks. It's not big or complete, but the preservation is so rare for the locality (POC) - the gloss on the enamel is as if it fell out of the shark's mouth yesterday. Saurornitholestes langstoni tooth I'm currently working on growing the dinosaur component of my collection, and this is my first Dromaeosaurid. Dromaeosaur tooth (Hell Creek Fm.) My most recent addition (as of Sept. 4, 2021), and it's my best dinosaur tooth for sure. Unfortunately it will be labeled as only a Dromaeosaurid tooth for now, but it still is just a great tooth from a cool family of dinosaurs. Shark Tooth Riker Display I've got one riker that I've tried to squeeze as many teeth into as possible. I need to get a couple more, probably; there's a lot of teeth that deserve a riker, but are just lying around. I'll try to update this thread semi-regularly as I make acquisitions in the future.
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I spent yesterday morning at the North Sulfur River. I had never made a trip to the upper part of the river, and decided to do that yesterday. I spent all morning walking (and crawling) the river, but found nothing. When I try out a new spot, I've made it a practice to find a nearby second spot to look at, in case the first one doesn't pan out at all. Sherman isn't too long a drive to the west of this upper river spot, so I designated a new section of Post Oak Creek that second spot, and drove there after I left the river. I wasn't too optimistic about what I might find in this new section of Post Oak Creek. The conditions and cirmcumstances seemed all wrong. I didn't arrive there until after noon. Post Oak Creek is a long enough drive from home that I knew I wouldn't be able to stay long. Plus, it's been quite a while since there was a good rain here. Post Oak Creek gets very picked over when there isn't new water uncovering stuff. But I figured if I found anything at all under these conditions, that would let me know this is a good spot, and I should return after a good rain. I also had the thought that if I didn't find much on gravel bars, I would spend some time searching matrix here. I had never done that at all at Post Oak Creek. I hiked down the creek and hunted a single gravel bar. I never made it past that gravel bar, and ended up finding much more than I expected, and only briefly looked at matrix there. For those so inclined, here's today's version of "Find the fossil".
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Here is my latest trip to POC. Another nice large tooth (I took a picture with a cm ruler for the non-Americans out there), some mastodon or mammoth enamel, a few nice ptychodus, chunkasaurus, and several chunks of matrix with teeth sticking out of them. I also had a few questionables. Anyone know what kind of tooth is in pictures 5 and 6? Or 7 and 8? Im thinking 9,10, and 11? 12, 13, and 14 might be crushed crustacean or coprolite? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
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I went out to brave the Texas summer heat and was well rewarded. Post Oak Creek is so heavily picked, especially in the summer, that I didn't expect much. I even went there with the Dallas Paleontological Society last month and saw a ton of footprints then and not many good teeth. The first three hours I found almost nothing, as I expected the surface was all picked over, however I found one gravel bar that people must not have gotten to because I started finding a few decent cretodus, squalicorax, goblin shark teeth, and a couple of nice ptychodus. Finally I found two huge teeth about a foot apart from each other. The first one is by far my largest ever complete tooth that was as large as two quarters. Then the next one with the nice cusplets is larger than a quarter which would still have been my largest find if I hadn't of found the first one. There are also two pictures, front and back, of some worn chunkosaur bones and two micro teeth. Also another cool find was a ptychodus in the secondary matrix. See if you can spot it? I always like to look in the secondary matrix sticking out of the river banks as I usually find a small tooth or two but this time I found a good one. The last two pictures are of a worn vertebrae. Not sure what from though. Mosasaur?
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From the album: Post Oak Creek
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From the album: Sharks
Cretodus crassidens Eagle Ford Group, Sherman, TX A smaller tooth from one of the largest predatory sharks in the Late Cretaceous (~ 90 Ma). It likely filled a similar niche in its environment that the Great White Shark does today. Its teeth are characterized by pointed side cusps, rounded root lobes, no nutrient groove, a shelf-like lingual root protuberance on anterior teeth, and striations (ridges) at the foot of the crown (on both the main cusp and side cusps). This tooth is as nice as they get in terms of preservation and completeness from this locale - this one is only missing the tip.-
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From the album: Post Oak Creek
Nothing extraordinary, but I found an area with several chunks of matrix with teeth in them.-
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From the album: Post Oak Creek
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