Microfossils of irregular shape, 45–65 × 30–50 μm. Walls showing an irregular pattern of thicker and thinner areas, with a characteristic structure between inner and outer layer.: Revelles et al 2016b
Revelles J, Burjachs F, van Geel B (2016) Pollen and non-pollen palynomorphs fromthe Early Neolithic settlement of La Draga (Girona, Spain). Review of Palaeobotany and Palynology 225, 1-20.