D. Bailey et A. Loy, OLIGOSPHAERIDIUM-JUNCTUM SP. NOV. - A HAUTERIVIAN DINOFLAGELLATE CYSTFROM THE NORTH-SEA, Journal of micropalaeontology, 16, 1997, pp. 159-162
The new species Oligosphaeridium junctum is described and illustrated
from sidewall core samples in UKCS Well 15/29b-4Z. This species is con
sidered to be an extremely useful stratigraphic marker in Hauterivian
aged marine sediments of the North Sea.