Simona Posted August 27, 2018 Share Posted August 27, 2018 Hello everyone, I got this piece at an estate sale on Saturday, huge fossil, 7.8 inch/15.7 inch (20 cm x 40 cm), I'm not sure the provenience. Any help will be much appreciated! Thank you. 1 Link to comment Share on other sites More sharing options...
minnbuckeye Posted August 27, 2018 Share Posted August 27, 2018 I will take a stab at this one. but I was already wrong on a post today: not a fossil Dendritic growth is a very common phenomenon in nature. We are all familiar with the way how trees grow by spreading branches and roots from the main trunk (that’s why we call this mode of growth “dendritic”). The term “dendrite” itself is used to describe branched projections of neurons. 5 Link to comment Share on other sites More sharing options...
Brittle Star Posted August 27, 2018 Share Posted August 27, 2018 I would second that 1 Never ask a starfish for directions Link to comment Share on other sites More sharing options...
Simona Posted August 27, 2018 Author Share Posted August 27, 2018 Thank you, both for the answer! My resource was this site: http://www.fossilmuseum.net/Fossil_Sites/mcabee/Camaecyparis/Camaecyparis.htm, but I may be wrong. So, how old this Dendritic growth can be? Link to comment Share on other sites More sharing options...
caldigger Posted August 27, 2018 Share Posted August 27, 2018 Dendrites are mineral crystalline growth usually manganese. Not fossil, so it can't really be attributed to a certain age of deposit. 3 Link to comment Share on other sites More sharing options...
Innocentx Posted August 27, 2018 Share Posted August 27, 2018 Really lovely example of dendrites. Display case for that one! 1 "Journey through a universe ablaze with changes" Phil Ochs Link to comment Share on other sites More sharing options...
Simona Posted August 27, 2018 Author Share Posted August 27, 2018 1 hour ago, Innocentx said: Really lovely example of dendrites. Display case for that one! Thank you! I though so! Link to comment Share on other sites More sharing options...
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