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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
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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
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Found in some post oak creek matrix. Roughly 4mm long. Seems too conical for a sharks tooth. Is this even a fossil?
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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 o -
From the album: Post Oak Creek
Nothing extraordinary, but I found an area with several chunks of matrix with teeth in them. -
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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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
A small tooth from what would've been a decent-sized shark. Likely from the upper jaw. -
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- 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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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. -
From the album: Post Oak Creek
Not broken - just significant feeding wear. -
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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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
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From the album: Post Oak Creek
Posterior Cretodus sp. (crassidens?). 4 mm.-
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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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