Brinkhuis et al., 2000
From dinoflaj3
Brinkhuis, H., Klinkenberg. E., Williams, G.L. and Fensome, R.A., 2000: Two unusual new dinoflagellate cyst genera from the Bunde Borehole, Maastrichtian type area, southern Netherlands. Review of Palaeobotany and Palynology, v.110, p.93-110, pl.1-7.