Streng et al., 2009
From dinoflaj3
Streng, M., Basanova, M., Rehakova, S. and Willems, H., 2009: An exceptional flora of calcareous dinoflagellates from the middle Miocene of the Vienna Basin, SW Slovakia. Review of Palaeobotany and Palynology, v.153, p.225-244, pl.1-12.