Agate Guy Posted February 23 Share Posted February 23 I'm looking at what is being called a dinosaur egg (actually a pteradactyl egg, which I think is incorrect as it is too big). The seller says it was found in southern Minnesota. The seller says it was found 14 years ago and at the time, two people at the museum of natural history said it was a pteradactyl egg and showed where the beak is curled around the ball section in the middle. She said it split naturally. In looking at it using the information I've found on the internet and at this site; I'm wondering if it is a concretion of mud around a foreign body. I really want this to be a fossil but.... Size 15cm x 7.5cm. Basically a somewhat flattened circle. Seller asked me to research since I said I was unsure it was what she thought it was. Thank you for your help. Quote Link to post Share on other sites
Kane Posted February 23 Share Posted February 23 It would be best to show us an image of the specimen. Quote Link to post Share on other sites
Wayan Man Posted February 23 Share Posted February 23 Images would help. Based on the size described and the location a pterosaur egg (or any other egg) can almost certainly be ruled out, but images would still help for assessment. Quote Link to post Share on other sites
Fossildude19 Posted February 23 Share Posted February 23 I'd say about 90% of the "eggs" posted on here end up being concretions or some other mineral/rock. I don't believe any dinosaur or pterodactyl eggs have ever been found in Minnesota. That right there is a red flag. 1 Quote Link to post Share on other sites
jpc Posted February 23 Share Posted February 23 31 minutes ago, Fossildude19 said: I'd say about 90% of the "eggs" posted on here end up being concretions or some other mineral/rock. I don't believe any dinosaur or pterodactyl eggs have ever been found in Minnesota. That right there is a red flag. 99.5% 1 Quote Link to post Share on other sites
Zenmaster6 Posted February 23 Share Posted February 23 22 minutes ago, jpc said: 99.5% 99.9999% Quote Link to post Share on other sites
IsaacTheFossilMan Posted February 23 Share Posted February 23 27 minutes ago, Zenmaster6 said: 99.9999% (100 × (3 ÷ 3))% 1 Quote Link to post Share on other sites
Zenmaster6 Posted February 23 Share Posted February 23 21 minutes ago, IsaacTheFossilMan said: (100 × (3 ÷ 3))% Btw love your INVERTEBRATES FOR THE WIN!!! tag. 1 Quote Link to post Share on other sites
Rockwood Posted February 23 Share Posted February 23 But with those odds a five dollar bet would make you rich if it came in real. Quote Link to post Share on other sites
Agate Guy Posted February 24 Author Share Posted February 24 Here are some pix of the egg or concretion. IMG_6949.CR2 IMG_6957.CR2 IMG_6963.CR2 IMG_6948.CR2 Quote Link to post Share on other sites
JohnJ Posted February 24 Share Posted February 24 @Agate Guy Please upload the images as jpg files to give more members a chance to view them. Thanks. Quote Link to post Share on other sites
Thomas.Dodson Posted February 24 Share Posted February 24 Yep, that’s a concretion. Quote Link to post Share on other sites
Top Trilo Posted February 24 Share Posted February 24 Agreed not an egg but still cool Quote Link to post Share on other sites
Fossildude19 Posted February 24 Share Posted February 24 Definitely a concretion. There is no egg shell texture, or egg shell apparent. So many people trying to cash in on rocks they believe are fossils. 1 Quote Link to post Share on other sites
Rockwood Posted February 24 Share Posted February 24 7 hours ago, Fossildude19 said: So many people trying to cash in on rocks they believe are fossils. Look at the bright side. The lottery players regularly lower your tax bill by increasing their contribution. Quote Link to post Share on other sites
IsaacTheFossilMan Posted February 24 Share Posted February 24 11 hours ago, Zenmaster6 said: Btw love your INVERTEBRATES FOR THE WIN!!! tag. Haha, Thank you very much! 1 Quote Link to post Share on other sites
IsaacTheFossilMan Posted February 24 Share Posted February 24 10 hours ago, Top Trilo said: Agreed not an egg but still cool Yeap, that's a concretion alright! Quote Link to post Share on other sites
LordTrilobite Posted February 24 Share Posted February 24 Yeah, concretion, not an egg. Quote Link to post Share on other sites
Agate Guy Posted February 24 Author Share Posted February 24 Thanks everyone for your input. That's what I thought too but not sure. Seller wanted me to check because she doesn't want to be dishonest. She is removing the listing. 2 2 Quote Link to post Share on other sites
Rockwood Posted February 24 Share Posted February 24 1 minute ago, Agate Guy said: Seller wanted me to check because she doesn't want to be dishonest. She is removing the listing. Now that is refreshing to hear. 3 Quote Link to post Share on other sites
jeannie55 Posted February 24 Share Posted February 24 I totally aced this one. I thought concretion too! 1 Quote Link to post Share on other sites
LabRatKing Posted February 24 Share Posted February 24 As concretions go, this one is magnificent. There is something zen-like about a geologic specimen that round. One of my many useless collections is of rocks I found like this...one produced a fossil crab two decades after finding it as it rolled off my desk and broke! 1 Quote Link to post Share on other sites
HuckMucus Posted February 24 Share Posted February 24 I had a beautiful concretion once. I thought something might be inside so I tried to break it open. No joy. I even took a sledge hammer to it. I couldn't chip the surface. No way it would roll of my desk and break, lol! It's difficult to describe, but imagine a perfectly symmetrical football but, instead of points on the ends, it had the ends of fat sausage like tips sticking out. Like one of those hot dogs baked in a bun but perfectly smooth all the way around. It was as if one concretion, like a sausage, had been engulfed by another concretion, leaving only the ends sticking out. Something told me to take it to a place and bury it so I did. About 700 miles away. Maybe a kajillion years from now someone will dig it up and say "Hey, this is not from here." And then they'll be perplexed. Quote Link to post Share on other sites
Rockwood Posted February 24 Share Posted February 24 2 hours ago, HuckMucus said: No way it would roll of my desk and break, lol! On the contrary. I'm sure it would. If you didn't want it to. 1 Quote Link to post Share on other sites
HuckMucus Posted February 24 Share Posted February 24 1 hour ago, Rockwood said: On the contrary. I'm sure it would. If you didn't want it to. That's true. Murphy's Law and all that. I'm a constant victim. Don't get me started on physics! 1 Quote Link to post Share on other sites
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