Hounslow , Mark W., Mengyu Hu, Atle Mørk, Wolfgang Weitschat, Jorunn Os Vigran, Vassil Karloukovski, and Michael J. Orchard. 2008. “Intercalibration of Boreal and Tethyan Time Scales: The Magnetobiostratigraphy of the Middle Triassic and the Latest Early Triassic from Spitsbergen, Arctic Norway”. Polar Research 27 (3):469-90. https://doi.org/10.3402/polar.v27i3.6188.