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Hello, This fossil was found in limestone matrix in the Arizona sonoran desert at 2600 feet. Please help me identify. It has a ridge on one side and also what appears to be a root hole in the top. Any help would be greatly appreciated. Thank you.
Sorry but I think it's just a rock.
Nice find, I have not seen anything like that before! is it heavy? any chance of a picture of the root hole.
I, too, suspect it is just a lump of rock.
But I would be happy to look at further photos, as Tabfish asks.
Also, you say it was in a limestone matrix...
- Were there other pieces like this or was it the only one?
- How easily did it come out from the limestone matrix (it seems to be evenly weathered)?
- What is it made of (sandstone/siltstone/limestone/etc.) If limestone, how does it differ from the limestone matrix that surrounded it?