Head and Norris, 1989
From dinoflaj3
Head, M.J. and Norris, G., 1989: 28. Palynology and dinocyst stratigraphy of the Eocene and Oligocene in ODP Leg 105, Hole 647A, Labrador Sea. Ocean Drilling Program, Proceedings, Scientific Results, Leg 105, College Station, Texas, p.515-550, pl.1-13.