Menozzi et al 2010: globose, about 20–32 micron in diameter; the wall is smooth and light yellow, 1-1.5 μm thick, often a straight furrow is present. It is very similar to HdV-303 (van Geel et al. 1981) but larger and paler.
Menozzi BI, Zotti M, Montanari C (2010) A non-pollen palynomorphs contribution to the local environmental history in the Ligurian Apennines: a preliminary study. Veg. Hist. Archaeobot. 19:503-512.