Strauss and Lund, 1992
From dinoflaj3
Strauss, C. and Lund, J.J., 1992: A Middle Miocene dinoflagellate cyst microflora from Papendorf near Hamburg, Germany. Mitteilungen Geologisch-Paläontologischen Institut der Universität Hamburg, v.73, p.159-189, pl.1-5.