Planko Posted November 10, 2019 Share Posted November 10, 2019 Went to the very upper par of NSR this morning. Didn't really find anything special. Cannot identify the pics. Coloration really stood out from the dark matter they were in. They were not in the creek area but closer to the middle of the high material in the bed of the river. Everything else besides a few odd rocks were dark grey or black. All were found within 20 feet of each other except a really small (.25x.5) red colored piece. Still need to clean and photo. Total of 8 around the same size. Pic 2 has flat surfaces compared to the round of the others. I am thinking Diploporita. No idea of species. Any other thoughts? Link to comment Share on other sites More sharing options...
Creek - Don Posted November 10, 2019 Share Posted November 10, 2019 That looks like part of the Septarian Nodule. Link to comment Share on other sites More sharing options...
grandpa Posted November 11, 2019 Share Posted November 11, 2019 Hi Planko, 1 hour ago, Planko said: I am thinking Diploporita. I'm pretty sure that I can confirm that this is not a diploporita. That would be a paleozoic specimen and you are searching in mesozoic era exposures (and perhaps later - if in the upper part of the bank). From the photos, I cannot really see anything that says fossil "organism". Rather it looks to me like what I like to call "fossil weather", in this case "fossil" mud cracks. You are looking in a good place to find some great specimens, and with your eye for spotting the unusual I'm certain that you will find some really special stuff. (BTW, I and others on this site love to collect "fossil weather" specimens, so I'd keep that specimen were I you.) 3 Link to comment Share on other sites More sharing options...
Oxytropidoceras Posted November 11, 2019 Share Posted November 11, 2019 My guess would be they are septarian concretions in various stages of weathering. Septarian concretions https://arkansasgeological.wordpress.com/2015/10/08/geopic-of-the-week-septarian-concretions/ https://arkansasgeological.wordpress.com/2015/10/08/more-views-of-septarian-concretions/ https://commons.wikimedia.org/wiki/Category:Septarian_concretions https://en.wikipedia.org/wiki/Concretion#Septarian_concretions https://commons.wikimedia.org/wiki/File:Septarian_Rock_from_Nova_Scotia_in_Canada.jpg Yours, Paul H. 1 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted November 11, 2019 Share Posted November 11, 2019 Septarian concretions -- very nice specimens. Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Planko Posted November 12, 2019 Author Share Posted November 12, 2019 Thank you all. Link to comment Share on other sites More sharing options...
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