Knutsen, E. M., P. S. Druckenmiller, and J. H. Hurum. 2012a. Redescription and taxonomic clarification of ‘Tricleidus’ svalbardensis based on new material from the Agardhfjellet Formation (middle Volgian). Norwegian Journal of Geology, 92, 175–186.
Knutsen, E. M., P. S. Druckenmiller, and J. H. Hurum. 2012a. Redescription and taxonomic clarification of ‘Tricleidus’ svalbardensis based on new material from the Agardhfjellet Formation (middle Volgian). Norwegian Journal of Geology, 92, 175–186.