Clearwater. 1, 2 Planothidium apiculatum (6277) 3, 4 Planothidium sp. (6276) 5, 6 Eunotia paratridentula (6279) 7 Eunotia sp. (6276) 8 Eunotia circumborealis (6279) 9, 10 Eunotia minor (6277, 6279) 11 Eunotia serra (6276) 12–14 Eunotia bidens (6276, 6279) 15 Eunotia triodon (6276). Scale bar: 10 µm.