Shamalama Posted December 13, 2019 Share Posted December 13, 2019 I'm a little frustrated at the moment because I've spent almost two hours surfing the interwebs and this forum to see if I could ID these shark teeth. They came in a bag labelled "Belgrade Quarry, NC" along with some Hemipristis serra teeth and some Carcharocles angustidens that I queried in an earlier ID post. I think these first three are Negaprion eurybathrodon but I really can't tell. I've been to Bill Heim's Elasmo site and have done searches on here to try and narrow down the options but I am coming up clueless. Any help is appreciated! Specimen 1 Specimen 2 Specimen 3 And I believe these are Sand Tiger shark teeth, Carcharias sp., but they are missing any cusps. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
sixgill pete Posted December 13, 2019 Share Posted December 13, 2019 The first three are Carcharhinus species possibly C. obscurus; Dusky shark. The others are sand tigers Carcharias cuspidata, a very common tooth in the Belgrade Formation. 4 Bulldozers and dirt Bulldozers and dirt behind the trailer, my desert Them red clay piles are heaven on earth I get my rocks off, bulldozers and dirt Patterson Hood; Drive-By Truckers May 2016 May 2012 Aug 2013, May 2016, Apr 2020 Oct 2022 Link to comment Share on other sites More sharing options...
hokietech96 Posted December 14, 2019 Share Posted December 14, 2019 At first glance I thought bull shark but sixgill has way more experience and expertise so I would like to change my answer to dusky. 1 Link to comment Share on other sites More sharing options...
Al Dente Posted December 14, 2019 Share Posted December 14, 2019 I don’t think these teeth are from Belgrade Quarry. The colors of the first three look like Bone Valley teeth from Florida. 1 Link to comment Share on other sites More sharing options...
Shamalama Posted December 14, 2019 Author Share Posted December 14, 2019 13 hours ago, sixgill pete said: The first three are Carcharhinus species possibly C. obscurus; Dusky shark. The others are sand tigers Carcharias cuspidata, a very common tooth in the Belgrade Formation. 10 hours ago, hokietech96 said: At first glance I thought bull shark but sixgill has way more experience and expertise so I would like to change my answer to dusky. Thank you for the help, a very different answer than what I was thinking initially! -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Shamalama Posted December 14, 2019 Author Share Posted December 14, 2019 3 hours ago, Al Dente said: I don’t think these teeth are from Belgrade Quarry. The colors of the first three look like Bone Valley teeth from Florida. It's possible that the seller got teeth from different locations mixed together. The first tooth with the blue/white color is the only one from the batch in that style. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Al Dente Posted December 14, 2019 Share Posted December 14, 2019 I agree with the others that the first three teeth are dusky or bull shark. Too young to be Belgrade Formation but there is Pliocene in the quarry. Usually the Pliocene teeth from there are pretty beat up and weathered. 1 Link to comment Share on other sites More sharing options...
Shamalama Posted December 14, 2019 Author Share Posted December 14, 2019 14 minutes ago, Al Dente said: I agree with the others that the first three teeth are dusky or bull shark. Too young to be Belgrade Formation but there is Pliocene in the quarry. Usually the Pliocene teeth from there are pretty beat up and weathered. Maybe the seller mixed his teeth from the Belgrade Quarry and the Lee Creek Quarry? The colors of the teeth seem to match Lee Creek a little better. In the same bag are some Hemipristis serra teeth that are mostly light colored as well so I'm thinking there was some mixing of findings at some point. The bag had been donated to my local club for sale at the club table during the club show. I think it came from an estate of an old collector. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
siteseer Posted December 14, 2019 Share Posted December 14, 2019 9 hours ago, Al Dente said: I don’t think these teeth are from Belgrade Quarry. The colors of the first three look like Bone Valley teeth from Florida. I was going to say the same thing about the first three teeth. Earlier this year, I sorted a large lot of Bone Valley teeth for a friend. As a rule, you shouldn't try to guess even the general locality from the color, but those are Bone Valley colors. 1 Link to comment Share on other sites More sharing options...
Shamalama Posted December 16, 2019 Author Share Posted December 16, 2019 Well, for now I am going to leave them labelled "Belgrade Quarry or Lee Creek Quarry" only because I don't have enough knowledge or experience myself o say otherwise. I appreciate everyone's help and opinions on these teeth. It will just have to stay mystery for now. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
siteseer Posted December 17, 2019 Share Posted December 17, 2019 9 hours ago, Shamalama said: Well, for now I am going to leave them labelled "Belgrade Quarry or Lee Creek Quarry" only because I don't have enough knowledge or experience myself o say otherwise. I appreciate everyone's help and opinions on these teeth. It will just have to stay mystery for now. Okay, but you should think about what Al Dente said about the species. They are bull sharks if not duskies and both are from the early-mid Miocene to the present. The Belgrade deposit is late Oligocene to earliest Miocene as I recall with a different fauna even if it sounds like there isn't much of a time difference. You don't get those colors at Belgrade nor Lee Creek though I would say there could be some overlap with the grayer teeth. You can call it a mystery but those are distinctive Bone Valley species and colors. Also, if Don says the sand tigers do look like Belgrade teeth, you can take that to the bank too. Jess 1 Link to comment Share on other sites More sharing options...
Troodon Posted December 17, 2019 Share Posted December 17, 2019 I've got quite a few teeth from Bone Valley and the preservation match the top three. Not from Belgrade Quarry age is all wrong like Al Dente said. 1 Link to comment Share on other sites More sharing options...
Shamalama Posted December 17, 2019 Author Share Posted December 17, 2019 10 hours ago, siteseer said: Okay, but you should think about what Al Dente said about the species. They are bull sharks if not duskies and both are from the early-mid Miocene to the present. The Belgrade deposit is late Oligocene to earliest Miocene as I recall with a different fauna even if it sounds like there isn't much of a time difference. You don't get those colors at Belgrade nor Lee Creek though I would say there could be some overlap with the grayer teeth. You can call it a mystery but those are distinctive Bone Valley species and colors. Also, if Don says the sand tigers do look like Belgrade teeth, you can take that to the bank too. Jess 4 hours ago, Troodon said: I've got quite a few teeth from Bone Valley and the preservation match the top three. Not from Belgrade Quarry age is all wrong like Al Dente said. Ok, That is convincing enough for me to change their origin to Bone Valley. Again I don't have the experience collecting shark teeth like you guys do so I will take your guidance to heart. Were these Devonian brachiopods I could reasonably make a judgement call on their origin based on their looks and matrix in the same way you guys do with these shark teeth. I'm just out of my depth here. Again, thank you for the help! -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
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