old bones Posted October 21, 2023 Share Posted October 21, 2023 @Ancient Bones found this specimen in the micro fossil material from the Aurora Mine spoil pile in Aurora, North Carolina. As usual, I like to photograph her finds in order to add them to her Galleries. This one, I believe is a partial Basking Shark, Cetorhinus sp., gill raker, but I would like to confirm that ID before labeling. It closely resembles the one on Elasmo.com. and the one I found from Sharktooth Hill matrix. Any input is welcome. @Al Dente @MarcoSr @sixgill pete 4 Link to comment Share on other sites More sharing options...
MarcoSr Posted October 21, 2023 Share Posted October 21, 2023 Julianna Although bony fish rib bones can look similar, the specimen does look like a partial Basking Shark, Cetorhinus sp., gill raker to me. Gill rakers are rare finds in Aurora matrix. Marco Sr. 2 1 1 "Any day that you can fossil hunt is a great day." My family fossil website Some Of My Shark, Ray, Fish And Other Micros My Extant Shark Jaw Collection Link to comment Share on other sites More sharing options...
sixgill pete Posted October 21, 2023 Share Posted October 21, 2023 I will agree with @MarcoSr on this. To show how rare they are, in the hundreds of pounds of Aurora matrix I have processed and searched I have only found 2 or 3 of them. And even rarer are the teeth, I have 1. 1 1 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...
old bones Posted October 22, 2023 Author Share Posted October 22, 2023 4 hours ago, MarcoSr said: Julianna Although bony fish rib bones can look similar, the specimen does look like a partial Basking Shark, Cetorhinus sp., gill raker to me. Gill rakers are rare finds in Aurora matrix. Marco Sr. 42 minutes ago, sixgill pete said: I will agree with @MarcoSr on this. To show how rare they are, in the hundreds of pounds of Aurora matrix I have processed and searched I have only found 2 or 3 of them. And even rarer are the teeth, I have 1. Thank you both so much for the confirmation. Ancient Bones will be pleased. Mum has a good eye! Link to comment Share on other sites More sharing options...
Shellseeker Posted October 22, 2023 Share Posted October 22, 2023 And pray tell, what is a gill_raker ? gill raker noun: any of the bony processes on a gill arch that diverts solid substance away from the gills Whale Shark tooth: The White Queen ".... in her youth she could believe "six impossible things before breakfast" Link to comment Share on other sites More sharing options...
ThePhysicist Posted October 22, 2023 Share Posted October 22, 2023 Thanks for sharing, I believed I found one in my first bag from the Aurora museum, this confirms it. I suspect it'll be awhile before I find a tooth... “The most incomprehensible thing about the world is that it is comprehensible.” - A. Einstein Link to comment Share on other sites More sharing options...
hemipristis Posted October 22, 2023 Share Posted October 22, 2023 9 hours ago, sixgill pete said: I will agree with @MarcoSr on this. To show how rare they are, in the hundreds of pounds of Aurora matrix I have processed and searched I have only found 2 or 3 of them. And even rarer are the teeth, I have 1. Same experience, same results: 2 and 1, respectively 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
hemipristis Posted October 22, 2023 Share Posted October 22, 2023 8 hours ago, Shellseeker said: And pray tell, what is a gill_raker ? gill raker noun: any of the bony processes on a gill arch that diverts solid substance away from the gills Whale Shark tooth: Some fish (cartilaginous and bony) swim through the water with their mouths wide open, and direct the water through its gills where numerous, closely-spaced gill rakers catch the organic stuff while the water flow through. A few basking shark photos: 3 1 'Those who cannot remember the past are condemned to repeat it.' George Santayana Link to comment Share on other sites More sharing options...
Ancient Bones Posted October 22, 2023 Share Posted October 22, 2023 Thank you all for confirming the ID of my gill raker. ' Keep calm and carry on fossiling ' Link to comment Share on other sites More sharing options...
old bones Posted October 22, 2023 Author Share Posted October 22, 2023 4 hours ago, hemipristis said: Some fish (cartilaginous and bony) swim through the water with their mouths wide open, and direct the water through its gills where numerous, closely-spaced gill rakers catch the organic stuff while the water flow through. A few basking shark photos: Thank you for answering Jack's question... (I was asleep!) Link to comment Share on other sites More sharing options...
old bones Posted October 22, 2023 Author Share Posted October 22, 2023 11 hours ago, ThePhysicist said: Thanks for sharing, I believed I found one in my first bag from the Aurora museum, this confirms it. I suspect it'll be awhile before I find a tooth... Mum is one up on me! Now, I am going to have to have a much closer look at all the Rhincodon teeth that I have found in that matrix to be sure that I haven't overlooked something much rarer... Link to comment Share on other sites More sharing options...
sixgill pete Posted October 23, 2023 Share Posted October 23, 2023 23 hours ago, Shellseeker said: And pray tell, what is a gill_raker ? gill raker noun: any of the bony processes on a gill arch that diverts solid substance away from the gills Whale Shark tooth: The gillraker is from a Cetorhinus sp.; Basking Shark. Whale shark teeth are relatively common in reject material. 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...
sixgill pete Posted October 23, 2023 Share Posted October 23, 2023 10 hours ago, old bones said: Mum is one up on me! Now, I am going to have to have a much closer look at all the Rhincodon teeth that I have found in that matrix to be sure that I haven't overlooked something much rarer... Rhincodon and Cetorhinus teeth are very different. The Cetorhinus from Lee Creek are not the same species as the ones from Sharktooth hill. 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...
old bones Posted October 23, 2023 Author Share Posted October 23, 2023 21 hours ago, sixgill pete said: Rhincodon and Cetorhinus teeth are very different. The Cetorhinus from Lee Creek are not the same species as the ones from Sharktooth hill. Link to comment Share on other sites More sharing options...
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