Harland, 1979c
From dinoflaj3
Harland, R., 1979c: The Wetzeliella (Apectodinium) homomorphum plexus from the Palaeogene/earliest Eocene of north-west Europe. In: Fourth International Palynology Conference, Lucknow, 1976-1977, Proceedings, v.2, p.59-70, pl.1-2.