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Unless otherwise stated, this image is the copyright of the submitter. Contact them for permission to reproduce it. |  | | Description | I took this photo near the base of a cliff of a limestone rock form known as the Niagara Escarpment in south central Ontario, about 2 hours northwest of Toronto.
I showed it to a geology major who guessed that these were fossils of ancient sponges called stromatoporoids. But I've never seen fossils like these on the Internet or in any book. I also noticed a remarkable similarity between these disks and some cup and ring carvings. Note especially the two disks at the bottom of the photo which appeared to be joined by a bridge pattern.
The disks are grooved into the rock, though not as deeply as many cup and ring carvings appear to be.
Would anyone hazard a guess as to whether these are fossils or carvings? |
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