connorp Posted January 7, 2022 Share Posted January 7, 2022 Had this concretion open today. I'm pretty confident it's something vertebrate. Maybe a lungfish plate? @jdp @RCFossils Thanks for any help. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted January 7, 2022 Share Posted January 7, 2022 Reminds me a bit of the proximal end of Lepidostrobophyllum mansfieldi cf. L. majus. The size is about right. I am not at all familiar with lungfish. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
siteseer Posted January 7, 2022 Share Posted January 7, 2022 I see why you're thinking maybe lungfish but that looks a little irregular and a little too big for a lungfish plate of that time. I'd be happy to be wrong and looking forward to reading what Jdp, RCFossils, and others experienced with Mazon Creek think about it. 1 Link to comment Share on other sites More sharing options...
RCFossils Posted January 7, 2022 Share Posted January 7, 2022 This is another odd one. I am definitely not seeing this being lungfish material. Without examining it in person, my best guess is a coprolite. I have seen them preserved before from the River site with similar preservation. 2 Link to comment Share on other sites More sharing options...
Runner64 Posted January 7, 2022 Share Posted January 7, 2022 1 hour ago, RCFossils said: I have seen them preserved before from the River site with similar preservation. I haven’t seen one before, do you happen to have an image? Link to comment Share on other sites More sharing options...
sixgill pete Posted January 7, 2022 Share Posted January 7, 2022 @Nimravis 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...
Nimravis Posted January 7, 2022 Share Posted January 7, 2022 This is one odd looking concretion, and if I was shown the picture and took a bet that it was a MC concretion, I definitely would have lost that bet. I have no clue on this one. Link to comment Share on other sites More sharing options...
connorp Posted January 8, 2022 Author Share Posted January 8, 2022 22 minutes ago, Nimravis said: This is one odd looking concretion, and if I was shown the picture and took a bet that it was a MC concretion, I definitely would have lost that bet. I have no clue on this one. Definitely doesn't look much like one now. It was one of those frustrating river ones with tons of thin layers that just keeps flaking. 1 Link to comment Share on other sites More sharing options...
jdp Posted January 8, 2022 Share Posted January 8, 2022 Agreed with others. I don't think this is lungfish. Link to comment Share on other sites More sharing options...
deutscheben Posted January 8, 2022 Share Posted January 8, 2022 Quite an interesting one. Those bits of black carbonized material would generally lead me to think it was plant material of some sort, but beyond that I don’t know. Link to comment Share on other sites More sharing options...
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