I found this weird fossil rock and I am wondering if anybody could help identify what could have made the imprint in it or what kind of rock it is?
2 Answers
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$\begingroup$ I think you might be right, that is so cool! I did not think I could find sand dollars so far inland. Thank you for you help! :) $\endgroup$– CrozierSep 2, 2018 at 21:45
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1$\begingroup$ @Crozier inland today is not necessarily were the ocean was in the past. I have worked fossil seaway deposits in Colorado which is about as far inland as you can get today. $\endgroup$– JohnSep 3, 2018 at 0:00
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1$\begingroup$ @Crozier the top of mount Everest is fossil-bearing limestone $\endgroup$– GimelistSep 3, 2018 at 1:44
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$\begingroup$ That is pretty interesting! Thanks for sharing @John and Gimelist :) $\endgroup$– CrozierSep 3, 2018 at 3:12
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$\begingroup$ @Crozier the western interior seaway is kinda cool, its one of the largest marine deposits on dry land. $\endgroup$– JohnSep 3, 2018 at 13:58
I found out today that this strange "fossil rock" is actually a sea biscuit (common name) in the class echinoidea. Sand dollars are flat, but the sea biscuits are "puffy". I found this out in my zoology class!