Baillie-Back. 1 Chamaepinnularia bergeri (6857) 2 Caloneis sp. (6862) 3 Caloneis silicula (6866) 4–7 Caloneis fusus (6866) 8 Pinnularia marchica (6862) 9 Pinnularia krammeri (6856) 10 Pinnularia grunowii (6863) 11 Pinnularia lata (6863) 12 Pinnularia borealis [cf. P. rabenhorstii PH] (6862) 13, 14 Pinnularia sp. [cf. P. microstauron] (6857) 15, 16 Pinnularia biceps (6857). Scale bar: 10 µm.