Cretaceous microplankton in a sample from Graham Island, Arctic Canada, collected during the second ' Fram ' Expedition (1898-1902). With notes on microplankton from the Hassel Formation, Ellef Ringnes Island. Skrifter utgitt av det Norske Videnskapsakademi Mat Nat Kl NS, No. 17 1964: 1-36. 15 [Zoological Record Volume 101]