ERRATUM: Late Paleogene emergence of a North American loess plateau

Mean grain-size and bulk magnetic susceptibility (MS) and anhysteretic remanent magnetization (ARM) intensity data collected from the WS, LTG, EF, LG study sites in the western United States are placed in a chronostratigraphic framework for each section. Compiled maximum depositional ages based on detrital zircon U-Pb geochronology, radiometric ages of ash beds (J, H, G, 5, 7, LWA, SDP), and North American Land Mammal Ages (NALMAs) are labeled along each stratigraphic column and illustrate the eastward diachronous initiation of eolian deposition. Note that rocks with a mean grain size larger than medium sand are abundant in the fluvial lithofacies, but were not collected for grain-size analysis. See the text for references, and Fig. DR1 (see footnote 1) for grain-size sorting and bulk saturation isothermal remanent magnetization (SIRM) trends.