Wrenn, 1988
From dinoflaj2
Wrenn, J.H., 1988: Differentiating species of the dinoflagellate cyst genus Nematosphaeropsis Deflandre & Cookson 1955. Palynology, v.12, p.129-150, pl.1-7.
Wrenn, J.H., 1988: Differentiating species of the dinoflagellate cyst genus Nematosphaeropsis Deflandre & Cookson 1955. Palynology, v.12, p.129-150, pl.1-7.
