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Figure 1.

Paleogeographic maps used in this study, including views of the western United States ~80 m.y. ago from (A) deeptimemaps.com (see also Blakey and Ranney, 2008), (B) Morris et al. (2016), and (C) U.S. Department of Agriculture satellite imagery, stitched together from Google Earth (2017). A legend is not included because such images generally do not have one when employed in public venues, such as on reader rails, on interpretive panels, or in animations.

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