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Showing results for tags 'texas fossils'.
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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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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.-
- post oak creek
- 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: Sharks
An odd shark from the Cretaceous of North Texas - these sharks had crushing teeth suited for hard-bodied prey.- 3 comments
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- ptychodus
- ptychodus whipplei
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From the album: Sharks
A large genus (for the Cretaceous); this one was found at the DFW airport in the 80's.-
- cretodus
- cretaceous
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From the album: Aguja Formation
Carbonized plant material (charcoal) is common - evidence of Cretaceous forest fires. -
From the album: Aguja Formation
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From the album: Aguja Formation
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From the album: Sharks
One of my favorites - the "ginsu" shark. This one was found at the DFW airport in the 80's.-
- cretoxyrhina
- cretoxyrhina mantelli
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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).-
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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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From the album: Sharks
Lower anterior from the modern Great Hammerhead: You don't see many teeth from this location - they're hard to find (somehow, I found this one at night! It was on the beach right next to the hotel.).-
- beach fossils
- great hammerhead
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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.-
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- rhinobatos incertus
- guitarfish
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From the album: Post Oak Creek
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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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- ptychotrygon
- sawfish
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I found theses fossils 20 years ago or so, while visiting My Very Good Friends (and former house mates) in San Antonio Texas. I had brought a flyrod on the trip as I knew there were some creeks near their house and I wanted to spend sometime fishing them. One afternoon I grabbed my flyrod and a box of Wooly Buggers and walked the 3/4 of a mile to the nearest creek. as I was rigging the rod I started noticing the Devil's Toe Nails laying along the banks of the creek. I began picking them up as they looked pretty cool and I knew what their common name was. Fishing was pretty good as I caught a number of small Bass and a few species of Sunfish on the flies. I kept picking up the Toe Nails as I fished and soon had my pockets filled up with them. I stopped picking them up, but kept fishing for a few hours. returning to my friends' house I washed them off and dried them off on paper towels. they looked really nice after washing them of the dirt. I knew they were of Cretaceous age and I knew they are called 'Devil's Toe Nails" but I have never learned more about them. If anyone can Identify them for me that would be soo appreciated. Thanks for any help!, Dean ~~~
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- devils toe nails
- texas fossils
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Pseudodiadema aguilerai (Maldonado, 1953) interambulacral view
JohnJ posted a gallery image in Member Collections
From the album: Glen Rose Formation Echinoids
© John Jackson
- 1 comment
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- Pseudodiadema
- echinoid
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Pseudodiadema aguilerai (Maldonado, 1953) ambulacral view
JohnJ posted a gallery image in Member Collections
From the album: Glen Rose Formation Echinoids
© John Jackson
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- Pseudodiadema
- echinoid
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Pseudodiadema aguilerai (Maldonado, 1953) apical view
JohnJ posted a gallery image in Member Collections
From the album: Glen Rose Formation Echinoids
© John Jackson
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- Pseudodiadema
- echinoid
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