FIGURE 10 in PE Note: Corrigenda to Murphey et al. 2018

FIGURE 10. Schematic stratigraphic columns of the upper part of the Twin Buttes Member and Turtle Bluff Member (TBM), Bridger Formation, on Sage Creek and Cedar Mountains showing magnetostratigraphy and radioisotopic dates relative to biochrons Br3 (late Bridgerian) and Ui1a (earliest Uintan). Sage Creek Mountain magnetostratigraphic section (shown on left) with key stratigraphic levels from Tsukui (2016, figure 2.5). Paleomagnetic sample, PCM7Sept15-01, analyzed in this paper was collected from uppermost Twin Buttes Member tuff, which occurs about 8 m below the Basal E limestone (= base of the TBM) on Sage Creek Mountain, and corroborates the Sage Creek Mountain magnetostratigraphic section of Tsukui (2016). Paleomagnetic samples (PCM6Sept15-02 and PCM6Sept15-03) analyzed in this paper were collected from the tuffaceous white sandstone, which occurs at 74-75 m above the Basal E limestone (= base of the TBM) on Cedar Mountain. Most recent competing dates for boundary between Chrons C21r and C21n are also shown (Ogg, 2012 [GPTS]; Westerhold et al., 2015; Tsukui, 2016). Abbreviations are: Brid, Bridger; Congl, conglomerate; BC, biochron; MS, magnetostratigraphy. 40Ar/39Ar dates are from Smith et al. (2008, 2010).