Beamertg Posted July 22, 2016 Share Posted July 22, 2016 Can anyone confirm if this is Auriculatus? Link to comment Share on other sites More sharing options...
Rustdee Posted July 22, 2016 Share Posted July 22, 2016 (edited) It does look like one. About where was it found. Could also be an angustidens, depending on where it was found, although the cusps seem to be much more robust like are typically seen in auriculatus. Edited July 22, 2016 by Rustdee Link to comment Share on other sites More sharing options...
sixgill pete Posted July 23, 2016 Share Posted July 23, 2016 It does appear to be a small C. auriculatus. However as Rusty noted where it was found ( formation) would be the true determining factor. 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...
Coco Posted July 23, 2016 Share Posted July 23, 2016 "C." auriculatus for ? I suppose Carcharocles auricularus... Isn't it ? Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Beamertg Posted July 23, 2016 Author Share Posted July 23, 2016 (edited) It was found on North Topsail Beach in NC. It measure exactly 2 inches from left tip to bottom of the tooth Edited July 23, 2016 by Beamertg Link to comment Share on other sites More sharing options...
DevilDog Posted July 23, 2016 Share Posted July 23, 2016 I have found both Angustidens and Ariculatis at North Topsail. I have been told by NC Fossil Club members there that the two should not be found together at the same location... But they are... I would call your tooth Ariculatis. Nice find. I have seen some nice, big teeth found there lately, mostly Angustidens. Hope my luck is good there tomorrow! DD Link to comment Share on other sites More sharing options...
sixgill pete Posted July 23, 2016 Share Posted July 23, 2016 "C." auriculatus for ? I suppose Carcharocles auricularus... Isn't it ? Coco Yes Coco, I should have spelled out the full name for everyone who may have looked at this. 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...
sixgill pete Posted July 23, 2016 Share Posted July 23, 2016 (edited) It was found on North Topsail Beach in NC. It measure exactly 2 inches from left tip to bottom of the tooth Remember auriculatus is an Eocene tooth and angustidens if from the Oligocene. There are some teeth that transition the two epochs that are sometimes refered to as Carcharolcles sokolowi (sokolovi). If it was found at North Topsail, most likely it came from the River Bend Formation that was dredged from offshore and deposited on the beach for re nourishment a year or so ago. That would most likely make the tooth a transitional tooth between auriculatus and angustidens. Looking closely at your tooth it does in my mind appear to exhibit features of each. This tooth could be ID"d as Carcharocles sokolowi. The fact that the River Bend formation is Oligocene (early) many would ID this tooth as angustidens. So if the tooth was in fact found at North Topsail, I would not call it an auriculatus. There is also Miocene teeth found there, sometimes large megs are found on the beach. Edited July 23, 2016 by sixgill pete 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...
sixgill pete Posted July 23, 2016 Share Posted July 23, 2016 I have found both Angustidens and Ariculatis at North Topsail. I have been told by NC Fossil Club members there that the two should not be found together at the same location... But they are... I would call your tooth Ariculatis. Nice find. I have seen some nice, big teeth found there lately, mostly Angustidens. Hope my luck is good there tomorrow! Carcharocles auriculatus is an Eocene tooth, C. angustidens is Oligocene. The formation dredged up ( that provided all of the echinoids and the teeth) is the River Bend Formation. It is early Oligocene, hence C. angustidens. There could be some early transitional teeth found that exhibit some traits of auriculatus, but since they are not Eocene are not auriculatus. These teeth, like my previous post said, could be ID'd as C. sokolowi. 1 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...
DevilDog Posted July 24, 2016 Share Posted July 24, 2016 Thank you very much for the clarification and educational post. I have had more than a few NC Fossil Club Members, met at North Topsail Beach, tell me that these teeth ( like the one in this post and ones I have found ) are "Ricks"... I will make a note to classify them as C. Sokolowi henceforth. Still a newbie with a lotto learn! DD Link to comment Share on other sites More sharing options...
Beamertg Posted July 24, 2016 Author Share Posted July 24, 2016 Wow you guys are very knowledgeable. Thank you for your help! I really had no idea what kind of tooth it was. A local here at Wrightsville Beach, NC took a look at it and immediately said it was Auriculatus. They do look a lot alike. It was indeed found on North Topsail Island so I guess I am going with the Augustiden. Thanks again for the ID! I will have to go back and find that Meg. Link to comment Share on other sites More sharing options...
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