Former single order for all centric diatoms, not used since the more extensive treatment of Round et al., 1990, ... [details]
Misspelled Druridgea in many publications, however Druridgia is correct, refer original work and Round et al., 2000. [details]
Former single order for all pennate diatoms, not used since the more extensive treatment of Round et al., 1990, ... [details]