Dayle Posted April 5, 2017 Share Posted April 5, 2017 Hi, I'm new to this fossil stuff but it fascinates me. I found this in the head waters of an east coast river of the north island of New Zealand while hunting other things. I get around some remote country and every now and then find something like this but my knowledge of this sort of thing is limited. Can anyone please tell me what it actually is and if its of any significance please. Cheers Dayle Link to comment Share on other sites More sharing options...
Scylla Posted April 5, 2017 Share Posted April 5, 2017 I don't think it is what you think it is. It looks like a weathered mudstone boulder. Turtle plates look more regular and the bony trabeculae should show. 2 Link to comment Share on other sites More sharing options...
fifbrindacier Posted April 5, 2017 Share Posted April 5, 2017 I agree this is a cracked mudstone with suggestive shape. Welcome here "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
abyssunder Posted April 5, 2017 Share Posted April 5, 2017 I see it has very nice septarian propagation cracks. T. R. ASTIN. 1986. SEPTARIAN CRACK FORMATION IN CARBONATE CONCRETIONS FROM SHALES AND MUDSTONES. Clay Minerals 21, 617-631 1 " 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...
Dave pom Allen Posted April 6, 2017 Share Posted April 6, 2017 sorry but not a fossil just a subjective looking rock. where on the east coast was it ? Link to comment Share on other sites More sharing options...
doushantuo Posted April 6, 2017 Share Posted April 6, 2017 People go all bonkers whenever they see a polygonal pattern . I posted on synaeresis cracks just recently. As has been demonstrated numerous times on this forum,the hydrological cycle has an impact on geomorphology Link to comment Share on other sites More sharing options...
GeschWhat Posted April 6, 2017 Share Posted April 6, 2017 Welcome to the Forum!!! I agree with the others. It looks like a septarian nodule. These are sometimes referred to as turtle stones, but in your area the larger ones along the coast are also known as Moeraki Boulders. Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
doushantuo Posted April 6, 2017 Share Posted April 6, 2017 moe 1 Link to comment Share on other sites More sharing options...
doushantuo Posted April 6, 2017 Share Posted April 6, 2017 geochem,particularlyrelevantinviewof Gesch 's remark/post 1 Link to comment Share on other sites More sharing options...
doushantuo Posted April 6, 2017 Share Posted April 6, 2017 shortfactsheet Link to comment Share on other sites More sharing options...
doushantuo Posted April 6, 2017 Share Posted April 6, 2017 septarian,awesomefromJSR Link to comment Share on other sites More sharing options...
doushantuo Posted April 6, 2017 Share Posted April 6, 2017 moer non peer-reviewed obviously Link to comment Share on other sites More sharing options...
Dayle Posted April 6, 2017 Author Share Posted April 6, 2017 Thanks everyone for your comments and information. Now I'm determined to find a real fossil. Dave: it was in the headwaters of the Waimataitai river, perhaps I should look closer to the Te Hoe Stream. Link to comment Share on other sites More sharing options...
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