Manu91 Posted January 24, 2023 Share Posted January 24, 2023 Hello everyone. Im new on this forum ,I signed up to know the opinion of experts and all you fossil fans about this "fossil?" I found at a flea marked days ago. I leave you some photos , all your opinions are welcome thanks Link to comment Share on other sites More sharing options...
Rockwood Posted January 24, 2023 Share Posted January 24, 2023 I don't think it's an egg. I doubt it's a fossil, but I don't really have a clue what it is. 1 2 Link to comment Share on other sites More sharing options...
Randyw Posted January 24, 2023 Share Posted January 24, 2023 I agree it's not an egg. It reminds me of either a concretion or an infilled geode where the center has completely crystalized. In pictures 2&3 I can't tell if the flat spot is crystal or just shiney. Is it wet or is it coated with something in that area? 1 Link to comment Share on other sites More sharing options...
Manu91 Posted January 24, 2023 Author Share Posted January 24, 2023 Its not wet or covered, it seem to me a shiny silicate Link to comment Share on other sites More sharing options...
JBkansas Posted January 24, 2023 Share Posted January 24, 2023 There are some pretty good egg guides for the next time you think you see one: 1 Link to comment Share on other sites More sharing options...
Styles Posted January 25, 2023 Share Posted January 25, 2023 Is it not chert? Link to comment Share on other sites More sharing options...
Pliosaur Posted January 25, 2023 Share Posted January 25, 2023 Here's a great resource that might help in identifying common concretions that might be mistaken for fossils https://www.priweb.org/blog-post/concretions Hope it helps! 1 Link to comment Share on other sites More sharing options...
Rockwood Posted January 25, 2023 Share Posted January 25, 2023 4 hours ago, Styles said: Is it not chert? That is kind of the problem. What is a concretion with a rind doing in brecciated looking chert ? 1 Link to comment Share on other sites More sharing options...
Manu91 Posted January 25, 2023 Author Share Posted January 25, 2023 I read your guides and they they convinced me even more that it is a fossil egg , there is something that cover the "oval" in the part attached to the rock wich would appear to be removed from the top. I leave you photos more accurate .... Link to comment Share on other sites More sharing options...
Manu91 Posted January 25, 2023 Author Share Posted January 25, 2023 Could it be the egg shell? Link to comment Share on other sites More sharing options...
Ludwigia Posted January 25, 2023 Share Posted January 25, 2023 If you still don't believe us, then take the thing to your local natural history museum for appraisal. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted January 25, 2023 Share Posted January 25, 2023 40 minutes ago, Manu91 said: Could it be the egg shell? I don't believe so. 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...
Phos_01 Posted January 25, 2023 Share Posted January 25, 2023 I don't think its a Dinosaur egg im sorry. I believe its a rock.. In fact I think its a fabrication, of two rocks placed together, I think the round rock is placed inside this rock with matrix , look at the round carved corner against the matrix that looks very weird. There is no egg shell I can see from these photos . The round rock looks like a sort of granit. Link to comment Share on other sites More sharing options...
JohnJ Posted January 25, 2023 Share Posted January 25, 2023 @Manu91 Do an online image search for "concretions". It is common for them to have exfoliating layers. 1 2 The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Rockwood Posted January 25, 2023 Share Posted January 25, 2023 3 hours ago, Manu91 said: I read your guides and they they convinced me even more that it is a fossil egg , Now the task would be to explain in more detail what indicates this to be an egg. Egg shell must be porous enough to allow passage of gasses to and from the embryo. The shell must be thin enough for the young creature to breach. I'm having trouble seeing this here. 2 Link to comment Share on other sites More sharing options...
Auspex Posted January 25, 2023 Share Posted January 25, 2023 I believe it is a concretion. It looks a bit asymmetrical, and the matrix seems very unusual, too, unlike any sedimentary structure I am familiar with. Going through the process of metamorphosis from a sedimentary state would have destroyed any fossils therein contained. 2 "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Manu91 Posted January 25, 2023 Author Share Posted January 25, 2023 Yes, you were right. It's not a fossil egg. I found images very similar to my stone, they are called "chert nodules",at this point I think it is one of these or at least something similar and certainly not a fossil. Thank you all for your opinions. 3 Link to comment Share on other sites More sharing options...
FossilNerd Posted January 27, 2023 Share Posted January 27, 2023 On 1/25/2023 at 5:10 PM, Manu91 said: Yes, you were right. It's not a fossil egg. I found images very similar to my stone, they are called "chert nodules",at this point I think it is one of these or at least something similar and certainly not a fossil. Thank you all for your opinions. My hat off to you for taking the advice given here to heart during the examination of your specimen. Many people come to TFF seeking our opinions for items such as yours, but ignore the combined years of wisdom found here. They usually seem to have their mind made up before even creating an account to post their specimen. Your reaction to the given advice is a breath of fresh air. Thank you! 1 6 The good thing about science is that it's true whether or not you believe in it. -Neil deGrasse Tyson Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy) Link to comment Share on other sites More sharing options...
westcoast Posted January 27, 2023 Share Posted January 27, 2023 This looks like a septum of an orthoconic nautilod with a siphuncular hole in the centre. Maybe? Link to comment Share on other sites More sharing options...
Rockwood Posted January 27, 2023 Share Posted January 27, 2023 Link to comment Share on other sites More sharing options...
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