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Composite chemo- and lithostratigraphy of the Windermere Supergroup from the Mackenzie Mountains, Canada (measured sections F1173, P5C, and 6YR). Organic carbon isotope data for the Twitya Formation in Section P5C is from ref. 24. Say, Sayunei; Sh, Shezal. The superscript next to 716 and 717 Ma corresponds to the cited reference.
