Dustin Posted September 5, 2017 Share Posted September 5, 2017 So I inherited what i believe is a real dinosaur egg. Anyone disagree? The story is my older brother discovered it horseback riding somewhere in South Dakota. I don't have anymore information and need to know about getting it authenticated. Link to comment Share on other sites More sharing options...
Kane Posted September 5, 2017 Share Posted September 5, 2017 Welcome to the forum. I would wager it isn't a dinosaur egg as the rind is too thick and I'm not seeing egg texture. I think what you may have here is a concretion. Still, an interesting looking piece! But I could be wrong - we'll see what the others say. 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
FossilDudeCO Posted September 5, 2017 Share Posted September 5, 2017 Yes, this is a weathered concretion. Eggshells should have a thin layer of textured material around a sandy infill. The edges of this piece are MUCH too thick and fractured. Still a pretty cool piece though. 1 Link to comment Share on other sites More sharing options...
Dustin Posted September 5, 2017 Author Share Posted September 5, 2017 So concretion couldnt have happened over a egg shell making it thicker? I mean if a egg was covered in ash it would make a thicker layer around the shell keeping everything sealed? Link to comment Share on other sites More sharing options...
doushantuo Posted September 5, 2017 Share Posted September 5, 2017 It does have a nice ovoid shape. Link to comment Share on other sites More sharing options...
ricardo Posted September 5, 2017 Share Posted September 5, 2017 Hello, It looks like a dolerite spheroidal disjunction. Regards, Ricardo Link to comment Share on other sites More sharing options...
doushantuo Posted September 5, 2017 Share Posted September 5, 2017 Could be,or spheroidal weathering of a dolerite dyke? Link to comment Share on other sites More sharing options...
Taogan Posted September 5, 2017 Share Posted September 5, 2017 Nice piece, but it is geological. Very interesting though, I can't remember seeing one like this. Link to comment Share on other sites More sharing options...
Dustin Posted September 5, 2017 Author Share Posted September 5, 2017 I want vindication that it isn't a dino egg. Should I just bring it to a museum or university? Link to comment Share on other sites More sharing options...
ricardo Posted September 5, 2017 Share Posted September 5, 2017 Like this picture from Penacova-Luso road in Portugal. Picture in situ. Link to comment Share on other sites More sharing options...
doushantuo Posted September 5, 2017 Share Posted September 5, 2017 Great example! Link to comment Share on other sites More sharing options...
doushantuo Posted September 5, 2017 Share Posted September 5, 2017 err,a couple of knowledgeable people(excluding yours truly,who regrets not having Erben's magnum opus now) just told you it isn't Link to comment Share on other sites More sharing options...
ricardo Posted September 5, 2017 Share Posted September 5, 2017 Or this one... I took it on Komati river (SAR). That´s not an egg. Sorry. Link to comment Share on other sites More sharing options...
Dustin Posted September 5, 2017 Author Share Posted September 5, 2017 So I may as well break it in half? At least see what the middle looks like. Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 5, 2017 Share Posted September 5, 2017 Welcome to the Forum, Dustin. It is definitely geologic in nature. Concretions are known for their concentric accretion of sediment. Definitely not an egg. Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
doushantuo Posted September 5, 2017 Share Posted September 5, 2017 I wouldn't break it ,period,for the simple fact that it is a great conversation piece Link to comment Share on other sites More sharing options...
supertramp Posted September 5, 2017 Share Posted September 5, 2017 it reminds me of the so called onion skin weathering, which may occur both on sedimentary and igneous rock (more probalbly for your specimen) https://www.google.it/search?q=onion+skin+weathering&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjArdqTxo7WAhVCOMAKHcp6ByEQ_AUICigB&biw=1366&bih=638 ciao Link to comment Share on other sites More sharing options...
fifbrindacier Posted September 5, 2017 Share Posted September 5, 2017 Nice concretion, i would keep it as it is. And it fits well with this little basket. "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
JohnBrewer Posted September 5, 2017 Share Posted September 5, 2017 Superb concretion. What an amazing talking piece. Don't break it open please. John Map of UK fossil sites Link to comment Share on other sites More sharing options...
abyssunder Posted September 5, 2017 Share Posted September 5, 2017 The multilayered concentric structure, the thickness of the layers and the texture of them rule out the possibility of a fossil egg of any kind. It's a nice concretion. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
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