JIMMFinsman Posted April 29 Share Posted April 29 Notice the symmetry and what looks like a spinal cord. Shell on top ? Beach on Delaware Link to comment Share on other sites More sharing options...
Rockwood Posted April 29 Share Posted April 29 I'm going to have to say other. I think this looks like conglomerate of some sort, perhaps volcanic breccia? Link to comment Share on other sites More sharing options...
jpc Posted April 29 Share Posted April 29 (edited) Sorry, this is not a turtle. No real turtle features. Google 'fossil turtle shell' for some views of actual fossil turtles. Edited April 29 by jpc Link to comment Share on other sites More sharing options...
JIMMFinsman Posted April 29 Author Share Posted April 29 Maybe not a turtle but the shape is not normal for just a rock. I believe it's aud fossil of some creature. Those two sides are sloped proportionately and the center line is flat and about an inch or so wide Link to comment Share on other sites More sharing options...
Rockwood Posted April 29 Share Posted April 29 43 minutes ago, JIMMFinsman said: Maybe not a turtle but the shape is not normal for just a rock. I believe it's aud fossil of some creature. Those two sides are sloped proportionately and the center line is flat and about an inch or so wide The shape you are describing is common in fractures which form in unstratified rock. Often, it's caused by thermal contraction as the mass cools. Link to comment Share on other sites More sharing options...
JIMMFinsman Posted April 29 Author Share Posted April 29 Wow I learn something every day. Love this forum! Link to comment Share on other sites More sharing options...
Rockwood Posted April 29 Share Posted April 29 If you ever get a chance, old fashioned granite quarries are a good place to study the phenomenon. Vinal Haven, one of the Fox Islands on the Maine Coast, is one of my favorite places to see them. Link to comment Share on other sites More sharing options...
JIMMFinsman Posted April 29 Author Share Posted April 29 Hoping to get up that this fall Link to comment Share on other sites More sharing options...
Rockwood Posted April 29 Share Posted April 29 24 minutes ago, JIMMFinsman said: Hoping to get up that this fall Be sure to visit the historical society's museum. Link to comment Share on other sites More sharing options...
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