Van Geel et al. 1989: Fungal spores 11.5-12.5 X 8-9 μm, provided with a ca. 1 μm wide protruding pore. They possibly represent the aseptate spores of the normally uniseptate Type 173A.
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.