(Fig. 4b) Spore and pollen frequency classes in the oil shale block from Lake Messel - Lenz, Olaf K; Wilde, Volker; Riegel, Walter (In supplement to: Lenz, OK et al. (2017): ENSO- and solar-driven sub-Milankovitch cyclicity in the Palaeogene greenhouse world; high-resolution pollen records from Eocene Lake Messel, Germany. Journal of the Geological Society, 174(1), 110-128, https://doi.org/10.1144/jgs2016-046, 2017)