sierrahotel117 Posted June 9, 2020 Share Posted June 9, 2020 (edited) Just moved 40 to the SE of Yellowstone National Park in NW Wyoming. We have been finding these in the excavation of the house. They are located in a greenish clay layer just above a rocky layer approximately 12 feet below the surface. They are sedimentary balls that, when broken open, have a smaller, more hard type of rock or maybe fossil inside. We find them in different sizes from 4-12 inches in diameter. Any help would be much appreciated. Edit - I believe they are rare double concretions. Edited June 9, 2020 by sierrahotel117 own research Link to comment Share on other sites More sharing options...
Rockwood Posted June 9, 2020 Share Posted June 9, 2020 2 hours ago, sierrahotel117 said: I believe they are rare double concretions. Concretions yes. Rare, double, not so much. It's possible there are fossils inside, but I sort of doubt it. 3 Link to comment Share on other sites More sharing options...
Fossildude19 Posted June 9, 2020 Share Posted June 9, 2020 I agree with the "not rare" assessment. Concretions are by nature made up of numerous concentric layers. Sometimes the inner layers are harder, than the outer layers, sometimes they are softer. 4 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
jpc Posted June 9, 2020 Share Posted June 9, 2020 Welcome to Wyoming Link to comment Share on other sites More sharing options...
GeschWhat Posted June 9, 2020 Share Posted June 9, 2020 Any chance you could crack one of those inner balls open? Lori www.areallycrappystory.com/fossils www.facebook.com/fossilpoo Link to comment Share on other sites More sharing options...
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