fossilsonwheels Posted April 28, 2020 Share Posted April 28, 2020 We got a very small amount of Lee Creek micro mix and it didn’t yield much in terms of volume but we did get a couple of excellent Hammerhead teeth, a Galeorhinus, and a few others. There are a couple of unsolved mysteries though. Up first is a 3mm mystery partial tooth. Under the scope this tooth bore no similarity to any other found. I looked through EVERY shark and batoid tooth picture for Lee Creek on Elasmo. The tooth that came the closest was actually Megachasma but I’m convinced that can’t be correct. The root is not intact and I can’t do any better on the pictures for now. Link to comment Share on other sites More sharing options...
Praefectus Posted April 28, 2020 Share Posted April 28, 2020 That does really look like a megachasma tooth. If it is, that is a really rare find. I think squatina sp. (subserratus?) is also a potential ID. I'm not sure. 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 28, 2020 Author Share Posted April 28, 2020 24 minutes ago, Praefectus said: That does really look like a megachasma tooth. If it is, that is a really rare find. I think squatina sp. (subserratus?) is also a potential ID. I'm not sure. I thought Squatina at first glance but the labial side did not look right for an Angelshark. That is when I hit Elasmo and thought it matched best for Megachasma. Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 29, 2020 Author Share Posted April 29, 2020 Did we find our first Raja tooth? 2mm so it’s tiny. This really matches up well with being a skate tooth but I’m never confident in my batoid ID’s. Lol Can’t get better pictures unfortunately Link to comment Share on other sites More sharing options...
NCSTer Posted April 29, 2020 Share Posted April 29, 2020 Well, I'd say your last pic does indeed look like a nice little Raja, but I'd like to see better photos before committing. For comparison, here's pix of one of my Lee Creek micro Raja's; scale is 0.5mm. 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted April 29, 2020 Author Share Posted April 29, 2020 24 minutes ago, NCSTer said: Well, I'd say your last pic does indeed look like a nice little Raja, but I'd like to see better photos before committing. For comparison, here's pix of one of my Lee Creek micro Raja's; scale is 0.5mm. That’s definitely it. Thank you Link to comment Share on other sites More sharing options...
sixgill pete Posted April 29, 2020 Share Posted April 29, 2020 The first tooth appears to be a broken Carcharhinus sp. Probably a symphyseal. These are very common in Lee Creek matrix. The other does indeed look like a male Raja sp. Also a very common find in Lee Creek matrix. I have searched hundreds of pounds of matrix from Lee Creek over the years. I have found exactly one Megachasma, and the was confirmed by Dr. Kinshu Shamada. If you search the forum you should be able to find pictures of it for comparison Also if you search the forum you should be able to find many posts from myself and @MarcoSr with Lee Creek micro identifications. 2 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...
MarcoSr Posted April 29, 2020 Share Posted April 29, 2020 1 hour ago, sixgill pete said: The first tooth appears to be a broken Carcharhinus sp. Probably a symphyseal. These are very common in Lee Creek matrix. The other does indeed look like a male Raja sp. Also a very common find in Lee Creek matrix. I have searched hundreds of pounds of matrix from Lee Creek over the years. I have found exactly one Megachasma, and the was confirmed by Dr. Kinshu Shamada. If you search the forum you should be able to find pictures of it for comparison Also if you search the forum you should be able to find many posts from myself and @MarcoSr with Lee Creek micro identifications. The 2nd tooth does look like Raja sp. I really can't see the 1st tooth well enough to ID it. However, from what I can see in the pictures it doesn't look like a Megachasma tooth. Marco Sr. 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...
fossilsonwheels Posted May 1, 2020 Author Share Posted May 1, 2020 On 4/29/2020 at 2:51 AM, sixgill pete said: The first tooth appears to be a broken Carcharhinus sp. Probably a symphyseal. These are very common in Lee Creek matrix. The other does indeed look like a male Raja sp. Also a very common find in Lee Creek matrix. I have searched hundreds of pounds of matrix from Lee Creek over the years. I have found exactly one Megachasma, and the was confirmed by Dr. Kinshu Shamada. If you search the forum you should be able to find pictures of it for comparison Also if you search the forum you should be able to find many posts from myself and @MarcoSr with Lee Creek micro identifications. Thank you very much for the ID and information. I may get some Lee Creek matrix so I’ll check out those posts Link to comment Share on other sites More sharing options...
fossilsonwheels Posted May 1, 2020 Author Share Posted May 1, 2020 On 4/29/2020 at 4:03 AM, MarcoSr said: The 2nd tooth does look like Raja sp. I really can't see the 1st tooth well enough to ID it. However, from what I can see in the pictures it doesn't look like a Megachasma tooth. Marco Sr. Thank you. I think the first is a Carcharhinus symphyseal. That makes sense. Link to comment Share on other sites More sharing options...
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