JoeBader Posted December 28, 2021 Share Posted December 28, 2021 Can anyone tell if this might be a fossil? I found it in Mount Lebanon, Lebanon. Thank you in advance! Link to comment Share on other sites More sharing options...
Al Dente Posted December 28, 2021 Share Posted December 28, 2021 Looks like oncolites. Here’s a website that explains what they are-http://www.jsjgeology.net/Oncolitic-limestone.htm 1 4 Link to comment Share on other sites More sharing options...
JoeBader Posted December 28, 2021 Author Share Posted December 28, 2021 Thank you! Link to comment Share on other sites More sharing options...
abyssunder Posted December 28, 2021 Share Posted December 28, 2021 Nice oncoids! " 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...
Plax Posted December 28, 2021 Share Posted December 28, 2021 2 hours ago, Al Dente said: Looks like oncolites. Here’s a website that explains what they are-http://www.jsjgeology.net/Oncolitic-limestone.htm Learned something new today. Thanks for posting the link. Link to comment Share on other sites More sharing options...
minnbuckeye Posted December 28, 2021 Share Posted December 28, 2021 Nice find! But @Al Dente raised a question for me. I had found a specimen that I labeled as stromatolite, found in the lower Ordovician of Goodhue County, Mn. It looks identical to yours. My question is how does one differentiate a stromatolite from an oncolite? Mike Link to comment Share on other sites More sharing options...
Crusty_Crab Posted December 28, 2021 Share Posted December 28, 2021 1 minute ago, minnbuckeye said: Nice find! But @Al Dente raised a question for me. I had found a specimen that I labeled as stromatolite, found in the lower Ordovician of Goodhue County, Mn. It looks identical to yours. My question is how does one differentiate a stromatolite from an oncolite? Mike The University of California, Berkeley Museum of Paleontology's website answers your question very succinctly: "...oncolites, which are formed by cyanobacterial growth. Oncolites are very similar to stromatolites, but instead of forming columns, oncolites form nearly spherical growths." https://ucmp.berkeley.edu/cambrian/marblemts.html 2 1 Link to comment Share on other sites More sharing options...
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