Hounslow , M. W., Hu , M., Mørk , A., Weitschat , W., Os Vigran , J., Karloukovski , V. and Orchard , M. J. (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), pp. 469-490. doi: 10.3402/polar.v27i3.6188.