rauhaus Posted September 18, 2016 Share Posted September 18, 2016 Hello! I found this chunk of something in Frankstown, MS while looking for shark teeth. There is so much petrified driftwood there and many pieces look similar to this. I picked this out at first thinking it was wood.. but I didn't see the little bumps along one side (I'm being very generic because I don't want to call it something it isn't and I'm not sure yet what it is ) until I got home. I also noticed when I got home that it is hollow and looks a bit like bone. After seeing this, I thought it was probably a fin spine or a ray barb. Others say it is a barb, but if it is, I'd love to know more. I would think it would have denticles along both sides, but the other side is rounded. Rays found at this location are Brachyrhizodus wichitaensis and Brachyrhizodus mcnultii. Specimen is 2" long Link to comment Share on other sites More sharing options...
rauhaus Posted September 18, 2016 Author Share Posted September 18, 2016 I've done more research since I posted this and I think it is a chimera fin spine. Link to comment Share on other sites More sharing options...
JohnBrewer Posted September 18, 2016 Share Posted September 18, 2016 Looking good. John Map of UK fossil sites Link to comment Share on other sites More sharing options...
non-remanié Posted September 18, 2016 Share Posted September 18, 2016 Yes, the fin spine belongs to a chimaeroid, likely Ischyodus sp. I have found similar specimens in late Campanian of NJ. 1 ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
rauhaus Posted September 18, 2016 Author Share Posted September 18, 2016 I have found some Ischyodus jaw sections here too. And this site is also Campanian. That must be it! Thanks, non! Link to comment Share on other sites More sharing options...
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