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Hello Found some I believe to be Graptolites and would like to be able to ID them better in the field. Is there a guide available or even a good book anyone might recommend for this. Attached pictures are what I think are graptolites but would like to verify. Surface finds Thank you all for the help Tom
Hi everyone Surface find in SW Arizona that I would like to ID if possible. I believe this is Stromatolite and it appeared to have a shark, Ray or Skate egg sack on it so I brushed some synthetic oil on it and put it under the microscope. looks like something inside there to me. My first thought is Xenacanthus although whatever that is in there doesn't really match up that well. Complete newbie here asking is this Stromatolite ? and what is that in the egg sack ?. Finding Graptolites, Arthropod's and Stromatolite in the same areas.