Coppermine. 1–2 Caloneis sp. [cf. C. falcifera] [C. falcifera PH] (6828, 6831) 3, 4 Caloneis fusus (6828) 5, 6 Caloneis sp. [cf. C. fasciata] (6831, 6832) 7, 8 Caloneis (Pinnularia?) sp. [Chamaepinnularia sp.? PH] (6828) 9 Caloneis tenuis (6830) 10 Pinnularia sp. [cf. P. pseudogibba] (6828) 11 Caloneis obtusa [C. obtusa sensu lato PH] (6824) 12 Pinnularia grunowii (6833) 13 Pinnularia pseudosuchlandtii [P. brebissonii PH] (6826, 6831, 6833) 14 Pinnularia decrescens (6832) 15 Pinnularia sp. (6828). Scale bars: 10 µm.