Bratvold, J. & Delsett, L.L. & Hurum, J.H. (2018)
Chondrichthyans from the Grippia bonebed (Early Triassic) of Marmierfjellet, Spitsbergen.
Norwegian Journal of Geology, 98(2), 189–217
Bratvold, J. (2016)
Chondrichthyans from the Grippia bonebed (Early Triassic) of Marmierfjellet, Spitsbergen.
Master Thesis, University of Oslo