The Triassic of Traill Ø and Geographical Society Ø, East Greenland: Implications for North Atlantic palaeogeography

Triassic palaeogeographies of the North Atlantic region have focused on the data‐rich regions of the Barents Shelf to Svalbard (Fleming et al., 2016; Klausen et al., in press; Klausen, Ryseth, Helland‐Hansen, Gawthorpe, & Laursen, 2015; Riis, Lundschien, Høy, Mørk, & Mørk, 2008) and the Northern North Sea (McKie & Williams, 2009). Reconciling the marine influence recognized in the north with the continental environments found in the south has proved problematic. East Greenland lies in a key position to resolve this problem. The extensive Triassic strata of Jameson Land and Scoresby Land have been the subject of considerable study (Andrews, Kelly, Braham, & Kaye, 2014; Clemmensen, 1977; Clemmensen, 1978a, 1978b; Clemmensen, 1980a, 1980b; Clemmensen & Andreasen, 1976; Clemmensen, Kent, & Jenkins, 1998; Decou, Andrews, Alderton, & Morton, 2016; Grasmück & Trümpy, 1969; Kürschner & Herngreen, 2010; Perch‐Nielsen, Birkenmajer, Birkelund, & Aellen, 1974). However, the relationship of these regions to the more discontinuous and poorly studied outcrops of Traill Ø and Geographical Society Ø (Figure 1) to the north is not fully understood. Understanding the northward continuation of the Triassic strata in East Greenland has important implications for wider regional palaeogeographies and the structural evolution of the north Atlantic at this time.