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Showing results for tags 'poc'.
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From the album: Post Oak Creek
The famous "ginsu shark" is a rarer species that can be found here. This is a lateral position; a tooth farther back in the mouth. I've only found a handful and none are complete.-
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- north texas
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From the album: Post Oak Creek
Symphyseal teeth are found in the midline of the shark's jaw. They are usually small and squashed-looking. Since only a few rows produce these teeth, they are much rarer than other positions.-
- texas fossils
- north texas
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From the album: Post Oak Creek
The fossils in the creek can have varying levels of preservation: from the pristine glassy enamel seen at the top, to more river-worn seen below.-
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- poc
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From the album: Post Oak Creek
These oysters are common in the creek, and support the Turonian age of the fossils.-
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- poc
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From the album: Post Oak Creek
These oysters are common in the creek, and support the Turonian age of the fossils.-
- texas fossils
- north texas
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From the album: Post Oak Creek
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- post oak creek
- poc
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From the album: Post Oak Creek
The "big guy" to find at POC. Though, this one is smaller, the preservation is as good as it gets for this location. In fact, it makes me believe that POC could draw from layers adjacent to the Eagle Ford Group. I've found matrix pieces that are consistent with the geology of EFG, but need to find matrix pieces with this kind of preservation to confirm Atco or something else. I'm also not sure that this is C. crassidens anymore since this smaller, narrower form differs so much from the holotype. I currently believe it's an undescribed species since I haven't found something that matches. Please let me know if you find a paper that fits this tooth (and the others at POC).-
- shark
- north texas
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From the album: Post Oak Creek
Reconstructed tooth set from a "Crow" shark - Squalicorax (could be S. falcatus) - illustrating the variety of tooth positions. Anterior teeth have erect, triangular cusps. Lateral teeth and posteriors are more common and have an increasingly posteriorly slanted crown, resembling the teeth of modern tiger sharks.-
- crow shark
- squalicorax
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I went back to Post Oak Creek yesterday, and hunted yet another part of the creek I hadn't seen before. The water is still really low, so there is less wading than usual although, with the temperature in the low '80's that afternoon, wading wouldn't have been a problem. I torqued my bad left knee first thing as I climbed down into the creek, and was hobbled the rest of the day. I found everything on the gravel bars yesterday, though I did look at some interesting outcrops too. Post Oak Creek is as fossiliferous as any place I've ever seen. I called it after around three and a half hours of hunting. I always manage to get dirty and muddy, crawling the gravel bars and climbing in and out of the creek, and I must have really looked like a homeless person, as I hobbled back toward where I parked, backpack on and walking stick in hand, because a woman in a white SUV stopped, got out of the vehicle, and asked me if I needed a coat. I said no, and she asked me if I was sure. I assured her I didn't need a coat. She looked unconvinced, and did not move her vehicle until after she watched me cross the road and climb into my brand new truck. Some in situ photos.
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From the album: Texas Cretaceous Fossils: Crustaceans
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- crustacean
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From the album: Texas Cretaceous Fossils: Crustaceans
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- crustacean
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From the album: Texas Cretaceous Fossils: Crustaceans
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- crab
- crustacean
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From the album: Post Oak Creek
To find denticles, you need to go to the finest grain size. This beautiful one could be shark, but I'm not certain.-
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- placoid scale
- dermal denticle
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From the album: Post Oak Creek
Rhinobatos teeth are probably the smallest teeth you can hope to find here - they are about as small as grains of sand.-
- 1
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- rhinobatos incertus
- guitarfish
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From the album: Post Oak Creek
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- 1
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- ptychotrygon
- sawfish
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From the album: Post Oak Creek
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- goblin shark
- scapanorhynchus
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From the album: Post Oak Creek
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- 1
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- ptychotrygon
- sawfish
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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