Gaarder, 1954
From dinoflaj3
Gaarder, K.R., 1954: Coccolithineae, Silicoflagellatae, Pterospermataceae and other forms from the 'Michael Sars' North Atlantic Deep Sea Expedition 1910. Report on the Scientific Results of the "Michael Sars" North Atlantic Deep-Sea Expedition, 1910, v.2, p.1-20.