Fensome et al., 2009
From dinoflaj3
Fensome, R.A., Williams, G.L. and MacRae, R.A., 2009: Late Cretaceous and Cenozoic fossil dinoflagellates and other palynomorphs from the Scotian Margin, offshore eastern Canada. Journal of Systematic Palaeontology, v.7, no.1, p.1-79, pl.1-11.