Van Geel et al. 1989: 7-10-septate, 98-143 μm long, 13-20 μm wide at the broadest part, often broken off at one or both ends.
van Geel B, Coope GR, van der Hammen T (1989) Palaeoecology and stratigraphy of the Lateglacial type section at Usselo (The Netherlands). Rev. Palaeobot. Palynol. 60:25-129.