Nakrem , H. A., Orchard , M. J., Weitschat , W., Hounslow , M. W., Beatty , T. W. and Mørk , A. (2008) “Triassic conodonts from Svalbard and their Boreal correlations”, Polar Research, 27(3), pp. 523-539. doi: 10.3402/polar.v27i3.6190.