I find Ꞓ such an odd-looking symbol. What's the historical significance, etc, of that symbol?
Latin letter C with bar
My understanding is, C was the Carboniferous, K for Cretaceous... why not just use a different letter?
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$\begingroup$ I suspect it is simply because it looks like a C but is distinguishable from the Carbaniferous, but am interested to see if there are documented answers. As a side note, it is used in other languages. Symbols come and go and what looks weird today may have been more recognised in earlier times. $\endgroup$– haresfurJun 8, 2020 at 1:07
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$\begingroup$ A lot of geological symbols are based on the assumption of hand drawn maps and sections. Geology has many unique symbols. once you know that simply creating a new symbol based on C would make more sense than using some random letter. Not that there are that many letters left. $\endgroup$– JohnJun 8, 2020 at 3:36
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$\begingroup$ Cretaceous is usually abbreviated K, for its German translation Kreide. $\endgroup$– Keith McClaryJun 10, 2020 at 3:29
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