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Showing results for tags 'pungo river fm'.
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- 14 replies
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From the album: Lee Creek
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- aurora
- galeorhinus
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From the album: Lee Creek
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From the album: Lee Creek
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This specimen was found in micro matrix purchased from the Aurora, North Carolina Fossil Museum. Description: Teeth are very similar to the genus Galeocerdo with finely serrated, long, thick and warped crowns; pronounced notch, small serrations on heel of distal side. Undulating margin and fine serrations on mesial edge. U-shaped root with a prominent protuberance on lingual face and transverse groove (Fig. 5.10). Physogaleus contortus differs from the genus Galeocerdo in having very prominent and bulging root with the deep notch, and a much more erect crown in lateral view. (Leder, 2005) References: THE NEOGENE SHARKS, RAYS, AND BONY FISHES FROM LEE CREEK MINE, AURORA, NORTH CAROLINA, Geology and Paleontology of the Lee Creek Mine, North Carolina, III. pgs 146-147 Figure 50 by Robert W. Purdy, Vincent P. Schneider, Shelton P. Applegate, Jack H. McLellan, Robert L. Meyer, and Bob H. Slaughter. B. W. Kent. 2018. The Cartilaginous Fishes (Chimaeras, Sharks, and Rays) of Calvert Cliffs, Maryland, USA. In S. J. Godfrey (ed.), Smithsonian : Contributions to Paleobiology 100 : pgs. 110-111 FIG.2.21 e,f,h (PG. 109)
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I have a few shark teeth that require second opinions on the IDs. All are East Coast of the US. First up, a Pungo River micro. 4mm or so. This is a familiar tooth form to me as I’ve seen this exact tooth in STH micros. I had put teeth of this exact form in with Cetorhinus teeth because it’s so common in STH micro mix. I could be wrong about the ID on the STH teeth plus Pungo River is different as I believe Cetorhinus teeth are quite rare in that fauna. Both STH and PR have Cetorhinus and Alopias teeth. I believe there is a close familial relationship between those genera so I figured best to get other opinions before labeling this a Basking Shark. I had a very, very small amount of Lee Creek micros to pick through, like half a sandwich bag. The odds of finding a Cetorhinus in that amount of matrix would be astronomical lol It’s probably why I doubt my ID. @siteseer @sharkdoctor @Al Dente @sixgill pete Anyway, here it is. Cetorhinus or Alopias or door #3 ?
- 12 replies
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- alopias
- calvert fm
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Hey everyone, I found this tooth in the spoil piles at the Aurora fossil museum in NC a few years ago. It's been sitting on my desk for a while and I haven't gotten around to getting it ID'd on the forum, but there's no time like the present. I have no idea what it could be from, maybe a pathological Carcharhinus or Physogaleus? The root is about 2.5 cm wide and the overall length (measured by the blade angle) is about 2 cm.
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Hey everybody, prepare for a series of ID requests as I've had a number of fossils from my collection piling up on my desk waiting to be posted. Here's what I believe is an odontocete tooth from the spoil pits across the street from the aurora fossil museum. It appears to be pretty worn and only has a small patch of enamel left on the end. The piece is about 4 cm long from tip to tip.
- 15 replies
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- aurora
- north carolina
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Hi Guys, I'm looking at this tooth on an auction site and curious about the provenance. Sellers sometimes get their material from elsewhere , and the location information for them is murky, so nailing down the localities for SC and NC teeth is like ..... well, like pulling teeth really. This seller has said that this is an Auriculatus tooth from Lee Creek phosphate mine. Since I think the formation is too young for a ric, my assumption would be chubutensis. I have seen chub teeth from Lee Creek with very prominent cusps. Though this one doesn't seem right. The morphology of the tooth seems like it may be a SC/NC Angustidens ? I'm mainly looking at the slight re-curve beneath the cusps on the roots but I know that can't always be a good diagnostic tool. These are the only shots I have. Thanks, Brett PS. With the location in question I know that a positive ID is almost impossible but I thought I'd give it a shot. @sixgill pete