Correction to: arktos https://doi.org/10.1007/s41063-020-00074-z

The original version of this article unfortunately contained a mistake. The presentation of Fig. 6 was incorrect.

The corrected Fig. 6 is placed in the following page.

Fig. 6
figure 6

Cored section of Horn River Group in Kugaluk N-02 with XRF proxies for terrigenous input (Al2O3, K2O, TiO2, Fe2O3), carbonate content (CaO), and anoxia (DOPT, MoEF). Error bars are only shown for Al2O3 data. Grey lines on logs are LOWESS regression with α-tension 2.5%. Data for CaO, Fe2O3, DOPT, and MOEF are truncated at 0.99 percentile. Pre-defined stratigraphic units [47] are labelled in black font. XRF-augmented units recognized in this study (grey font): BF Bluefish, UHI upper Hare Indian, VC Vermillion Creek, DC Dodo Canyon, and BI basal Imperial sandstone. Legend for lithology is given in Fig. 4