Fig. 1
From: Sedimentary organic matter from a cored Early Triassic succession, Georgetown (Idaho, USA)
a Map of the Western USA (based on Google maps). The Sonoma basin is indicated after Caravaca et al. (2018), direction of the Smithian transgression after Vennin et al. (2015) and Brayard et al. (2013). Extent of the Moenkopie and Chugwater groups (pale area) as well as sediment transport directions after Stewart et al. (1972). b Geological map of the Bear Lake area based on Lewis et al. (2012) (Geological map of Idaho 1:750,000)