Traviscounty Posted January 19, 2009 Share Posted January 19, 2009 Would someone please help? I found this at Sam Rayburn Reservoir in East TX. It is definitely a fossil. I am new on this site, so bare with me. Thi picture ma not be big enough or clear enough. I also can't seem to figure out my buddy's camera/computer. Thanks. Link to comment Share on other sites More sharing options...
tracer Posted January 19, 2009 Share Posted January 19, 2009 it's a piece of a mouth plate from a ray. Link to comment Share on other sites More sharing options...
tracer Posted January 19, 2009 Share Posted January 19, 2009 p.s. - if you decide to sift a bunch to look for fossils in the claiborne group of east texas (weches formation, et al), try not to breathe the dust, and wear gloves. the glauconitic mudstones of those rock units have been found to have elevated arsenic levels, from what i've read online... oh, p.p.s. - that stuff is probably middle eocene, like 30-40 million years ago. Link to comment Share on other sites More sharing options...
Traviscounty Posted January 19, 2009 Author Share Posted January 19, 2009 Thanks. I had no idea about the toxicity issue. I found this in the gravel on the shore, but I will heed the warning in the areas where I dig. I always thought that green dirt was a little strange. I found a couple of other things that I could use help with, but I didn't bring them to work. What other fossils could be in an area where I found the pictured item? Thanks again, Travis Link to comment Share on other sites More sharing options...
tracer Posted January 19, 2009 Share Posted January 19, 2009 it is my understanding that glauconite is largely comprised of mollusc poop that's had a bit of chemical weirdness over the ages. lots of iron in it too, as i recall. might have to go re-read on it some. oughta be all marine shells for the most part. oughta be a few shark teeth hanging around the same haunts as the ray bars. maybe some fish teeth, verts or earbones. don't know. haven't really hunted there much. but the green dirt is even used for some road covering in east texas, so gotta be a bunch of it somewhere. look up the info on the stone city formation on the hgms website - that's claiborne group also, even though it's not in east texas. the old shoreline was curved... Link to comment Share on other sites More sharing options...
Guest bmorefossil Posted January 20, 2009 Share Posted January 20, 2009 yes that would be a section of a ray mouth plate Link to comment Share on other sites More sharing options...
Major Posted January 29, 2009 Share Posted January 29, 2009 the glauconitic mudstones of those rock units have been found to have elevated arsenic levels, from what i've read online.. Another reason why Florida's a hunter's paradise! lol Link to comment Share on other sites More sharing options...
barefootgirl Posted January 29, 2009 Share Posted January 29, 2009 Hey thats cool lookin! So did you have any luck on Monday or Tuesday? In formal logic, a contradiction is the signal of defeat: but in the evolution of real knowledge, it marks the first step in progress toward victory. Alfred North Whithead 'Don't worry about the world coming to an end today. It's already tomorrow in Australia!' Link to comment Share on other sites More sharing options...
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