Antonasaurus Posted November 11, 2016 Share Posted November 11, 2016 I was walking in a ravine on Lawrence and Bayview in Toronto, and I saw this round stone with a crack. I decided to open up the rock, and saw this black form. Judging by the colour, I suspect that this could be from the Cambrian period. Any ideas for what this could be? (the Canadian 5 cents is the same size as the American one) Link to comment Share on other sites More sharing options...
Northern Sharks Posted November 11, 2016 Share Posted November 11, 2016 While I can't suggest what your fossil (?) is, it would be from the ordovician, not cambrian. Colour has nothing to do with the age of a fossil, that is strictly from the surrounding sediment. Can you post a closer, brighter pic of your mystery object There's no limit to what you can accomplish when you're supposed to be doing something else Link to comment Share on other sites More sharing options...
Antonasaurus Posted November 11, 2016 Author Share Posted November 11, 2016 Link to comment Share on other sites More sharing options...
Antonasaurus Posted November 11, 2016 Author Share Posted November 11, 2016 Link to comment Share on other sites More sharing options...
doushantuo Posted November 11, 2016 Share Posted November 11, 2016 Black shales are certainly NOT confined to the Cambrian as Nsharks said. Poriferan,arthropod cuticle?Perhaps not even biogenic? Very hard to tell Link to comment Share on other sites More sharing options...
Ludwigia Posted November 11, 2016 Share Posted November 11, 2016 Looks like it might be some kind of mineral stain, but I might be wrong. It's hard to see anything fossiliferous in it. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
tmaier Posted November 11, 2016 Share Posted November 11, 2016 Yeah, I'm not seeing any diagnostic features to declare this to be of organic origin. Link to comment Share on other sites More sharing options...
FossilDAWG Posted November 11, 2016 Share Posted November 11, 2016 Nothing about the black feature suggests any kind of structure, symmetry, or organization that would be expected if it had a biological origin. It seems to be just a mineral stain along a cleavage plane (indicated by the last, blurry photo) as is common in sedimentary rocks. Also there is no Cambrian exposed anywhere in or near Toronto, where the bedrock is all Upper Ordovician. As has been commented on already, color is no indication of the age of anything, except maybe my formerly white T-shirts. Don Link to comment Share on other sites More sharing options...
Antonasaurus Posted November 11, 2016 Author Share Posted November 11, 2016 Ok, thank you all for your time! Link to comment Share on other sites More sharing options...
fossiling Posted November 13, 2016 Share Posted November 13, 2016 keep looking, there are great finds waiting! Keep looking! They're everywhere! Link to comment Share on other sites More sharing options...
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