| Acanthocerataceae (Family) R.M. Crawford & Round (1990) | Page: App. I (p. 657). ("R.M. Crawford & F.E. Round, fam. nov."). | 
	
		| Achnanthidiaceae (Family) D.G.Mann (1990) | Page: App. I (p. 658). ("D.G. Mann, fam. nov."). | 
	
		| Anaulales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Aneumastus (Genus) D.G.Mann & Stickle (1990) | Page: App. I (p. 663). ("D.G. Mann & A.J. Stickle, gen. nov."). | 
	
		| Anomoeoneidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 658). ("D.G. Mann, fam. nov."). | 
	
		| Arachnoidiscaceae (Family) Round (1990) | Page: App. I (p. 652). ("F.E. Round, fam. nov."). | 
	
		| Arachnoidiscales (Order) Round (1990) | Page: App. I (p. 652). ("F.E. Round, ord. nov."). | 
	
		| Ardissoneaceae (Family) Round (1990) | Page: App. I (p. 652). ("F.E. Round, fam. nov."). | 
	
		| Ardissoneales (Order) Round (1990) | Page: App. I (p. 652). ("F.E. Round, ord. nov."). | 
	
		| Asterionellopsis (Genus) Round (1990) | Page: App. I (p. 664). ("F.E. Round, gen. nov."). | 
	
		| Asterolamprales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 652). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Attheyaceae (Family) R.M. Crawford & Round (1990) | Page: App. I (p. 658). ("R.M. Crawford & F.E. Round, fam. nov."). | 
	
		| Aulacoseiraceae (Family) R.M. Crawford (1990) | Page: App. I (p. 652). ("R.M. Crawford, fam. nov."). | 
	
		| Aulacoseirales (Order) R.M. Crawford (1990) | Page: App. I (p. 652). ("R.M. Crawford, ord. nov."). | 
	
		| Bellerocheaceae (Family) R.M. Crawford (1990) | Page: App. I (p. 658). ("R.M. Crawford, fam. nov."). | 
	
		| Berkeleyaceae (Family) D.G.Mann (1990) | Page: App. I (p. 659). ("D.G. Mann, fam. nov."). | 
	
		| Biddulphiophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Biremis (Genus) D.G.Mann & E.J. Cox (1990) | Page: App. I (p. 664). ("D.G. Mann & E.J. Cox, gen. nov."). | 
	
		| Bleakeleya (Genus) Round (1990) | Page: App. I (p. 664). ("F.E. Round, gen. nov."). | 
	
		| Brachysiraceae (Family) D.G.Mann (1990) | Page: App. I (p. 659). ("D.G. Mann, fam. nov."). | 
	
		| Cavinula (Genus) D.G.Mann & Stickle (1990) | Page: App. I (p. 665). ("D.G. Mann & A.J. Stickle, gen. nov."). | 
	
		| Cavinulaceae (Family) D.G.Mann (1990) | Page: App. I (p. 659). ("D.G. Mann, fam. nov."). | 
	
		| Chaetocerotales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 652). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Chaetocerotophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Chrysanthemodiscales (Order) Round (1990) | Page: App. I (p. 652). ("F.E. Round, ord. nov."). | 
	
		| Climacospheniaceae (Family) Round (1990) | Page: App. I (p. 652). ("F.E. Round, fam. nov."). | 
	
		| Climacospheniales (Order) Round (1990) | Page: App. I (p. 652). ("F.E. Round, ord. nov."). | 
	
		| Corethrales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 653). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Corethrophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Coscinodiscales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 653). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Coscinodiscophyceae (Class) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, class. nov."). | 
	
		| Coscinodiscophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Cosmioneidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 659). ("D.G. Mann, fam. nov."). | 
	
		| Cosmioneis (Genus) D.G.Mann & Stickle (1990) | Page: App. I (p. 665). ("D.G. Mann & A.J. Stickle, gen. nov."). | 
	
		| Cyclophoraceae (Family) Round & R.M. Crawford (1990) | Page: App. I (p. 653). ("F.E. Round & R.M. Crawford, fam. nov."). | 
	
		| Cyclophorales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 653). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Cymatosirales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 653). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Cymatosirophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Cymbellales (Order) D.G.Mann (1990) | Page: App. I (p. 653). ("D.G. Mann, ord. nov."). | 
	
		| Diadesmidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 660). ("D.G. Mann, fam. nov."). | 
	
		| Dictyoneidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 660). ("D.G. Mann, fam. nov."). | 
	
		| Dictyoneidales (Order) D.G.Mann (1990) | Page: App. I (p. 653). ("D.G. Mann, ord. nov."). | 
	
		| Diploneidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 656). ("D.G. Mann, fam. nov."). | 
	
		| Diploneidineae (Suborder) D.G.Mann (1990) | Page: App. I (p. 656). ("D.G. Mann, subord. nov."). | 
	
		| Endictyaceae (Family) R.M. Crawford (1990) | Page: App. I (p. 660). ("R.M. Crawford, fam. nov."). | 
	
		| Ethmodiscaceae (Family) Round (1990) | Page: App. I (p. 653). ("F.E. Round, fam. nov."). | 
	
		| Ethmodiscales (Order) Round (1990) | Page: App. I (p. 653). ("F.E. Round, ord. nov."). | 
	
		| Eunotiophycidae (Subclass) D.G.Mann (1990) | Page: App. I (p. 651). ("D.G. Mann, subclass. nov."). | 
	
		| Fallacia (Genus) Stickle & D.G.Mann (1990) | Page: App. I (p. 667). ("A.J. Stickle & D.G. Mann, gen. nov."). | 
	
		| Fragilariophyceae (Class) Round (1990) | Page: App. I (p. 651). ("F.E. Round class. nov."). | 
	
		| Fragilariophycidae (Subclass) Round (1990) | Page: App. I (p. 651). ("F.E. Round subclass. nov."). | 
	
		| Gossleriellaceae (Family) Round (1990) | Page: App. I (p. 660). ("F.E. Round, fam. nov."). | 
	
		| Hemiaulales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 654). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Hyalodiscaceae (Family) R.M. Crawford (1990) | Page: App. I (p. 660). ("R.M. Crawford, fam. nov."). | 
	
		| Leptocylindrales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 654). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Licmophorales (Order) Round (1990) | Page: App. I (p. 654). ("F.E. Round, ord. nov."). | 
	
		| Lithmodesmiaceae (Family) Round (1990) | Page: App. I (p. 660). ("F.E. Round, fam. nov."). | 
	
		| Lithodesmiaceae (Family) Round (1990) | Page: 127. ("Round, fam. nov."). | 
	
		| Lithodesmiales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 654). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Lithodesmiophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Luticola (Genus) D.G.Mann (1990) | Page: App. I (p. 670). ("D.G. Mann, gen. nov."). | 
	
		| Lyrellaceae (Family) D.G.Mann (1990) | Page: App. I (p. 661). ("D.G. Mann, fam. nov."). | 
	
		| Lyrellales (Order) D.G.Mann (1990) | Page: App. I (p. 654). ("D.G. Mann, ord. nov."). | 
	
		| Martyana (Genus) Round (1990) | Page: App. I (p. 673). ("F.E. Round, gen. nov."). | 
	
		| Mastogloiales (Order) D.G.Mann (1990) | Page: App. I (p. 654). ("D.G. Mann, ord. nov."). | 
	
		| Melosirales (Order) R.M. Crawford (1990) | Page: App. I (p. 654). ("R.M. Crawford, ord. nov."). | 
	
		| Microtabella (Genus) Round (1990) | Page: App. I (p. 673). ("F.E. Round, gen. nov."). | 
	
		| Neidiineae (Suborder) D.G.Mann (1990) | Page: App. I (p. 657). ("D.G. Mann, subord. nov."). | 
	
		| Orthoseiraceae (Family) R.M. Crawford (1990) | Page: App. I (p. 655). ("R.M. Crawford, fam. nov."). | 
	
		| Orthoseirales (Order) R.M. Crawford (1990) | Page: App. I (p. 655). ("R.M. Crawford, ord. nov."). | 
	
		| Oxyneis (Genus) Round (1990) | Page: App. I (p. 673). ("F.E. Round, gen. nov."). | 
	
		| Paraliales (Order) R.M. Crawford (1990) | Page: App. I (p. 655). ("R.M. Crawford, ord. nov."). | 
	
		| Petrodictyon (Genus) D.G.Mann (1990) | Page: App. I (p. 674). ("D.G. Mann, gen. nov."). | 
	
		| Petroneis (Genus) Stickle & D.G.Mann (1990) | Page: App. I (p. 674). ("A.J. Stickle & D.G. Mann, comb. nov." [sic]). | 
	
		| Pinnulariaceae (Family) D.G.Mann (1990) | Page: App. I (p. 661). ("D.G. Mann, fam. nov."). | 
	
		| Plagiotropidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 661). ("D.G. Mann, fam. nov."). | 
	
		| Proschkiniaceae (Family) D.G.Mann (1990) | Page: App. I (p. 662). ("D.G. Mann, fam. nov."). | 
	
		| Protoraphidales (Order) Round (1990) | Page: 128. ("Round, ord. nov."). | 
	
		| Psammodictyon (Genus) D.G.Mann (1990) | Page: App. I (p. 675). ("D.G. Mann, gen. nov."). | 
	
		| Psammodiscaceae (Family) Round & D.G.Mann (1990) | Page: App. I (p. 662). ("F.E. Round & D.G. Mann, fam. nov."). | 
	
		| Rhabdonemataceae (Family) Round & R.M. Crawford (1990) | Page: App. I (p. 655). ("F.E. Round & R.M. Crawford, fam. nov."). | 
	
		| Rhabdonematales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 655). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Rhaphoneidales (Order) Round (1990) | Page: App. I (p. 655). ("F.E. Round, ord. nov."). | 
	
		| Rhizosoleniophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Rhopalodiales (Order) D.G.Mann (1990) | Page: App. I (p. 655). ("D.G. Mann, ord. nov."). | 
	
		| Rocellaceae (Family) Round & R.M. Crawford (1990) | Page: App. I (p. 662). ("F.E. Round & R.M. Crawford, fam. nov."). | 
	
		| Scolioneidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 662). ("D.G. Mann, fam. nov."). | 
	
		| Scolioneis (Genus) D.G.Mann (1990) | Page: App. I (p. 676). ("D.G. Mann, gen. nov."). | 
	
		| Sellaphorineae (Suborder) D.G.Mann (1990) | Page: App. I (p. 657). ("D.G. Mann, subord. nov."). | 
	
		| Seminavis (Genus) D.G.Mann (1990) | Page: App. I (p. 677). ("D.G. Mann, gen. nov."). | 
	
		| Stauroneidaceae (Family) D.G.Mann (1990) | Page: App. I (p. 662). ("D.G. Mann, fam. nov."). | 
	
		| Stictocyclaceae (Family) Round (1990) | Page: App. I (p. 655). ("F.E. Round, fam. nov."). | 
	
		| Stictocyclales (Order) Round (1990) | Page: App. I (p. 655). ("F.E. Round, ord. nov."). | 
	
		| Stictodiscales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 655). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Streptothecaceae (Family) R.M. Crawford (1990) | Page: App. I (p. 663). ("R.M. Crawford, fam. nov."). | 
	
		| Striatellales (Order) Round (1990) | Page: App. I (p. 655). ("F.E. Round, ord. nov."). | 
	
		| Surirellales (Order) D.G.Mann (1990) | Page: App. I (p. 656). ("D.G. Mann, ord. nov."). | 
	
		| Tabellariales (Order) Round (1990) | Page: App. I (p. 656). ("F.E. Round, ord. nov."). | 
	
		| Thalassioneis (Genus) Round (1990) | Page: App. I (p. 677). ("F.E. Round, gen. nov."). | 
	
		| Thalassioneis signyensis (Species) Round (1990) | Page: App. I (p. 677). ("F.E. Round sp. nov."). | 
	
		| Thalassionemataceae (Family) Round (1990) | Page: App. I (p. 656). ("F.E. Round, fam. nov."). | 
	
		| Thalassionematales (Order) Round (1990) | Page: App. I (p. 656). ("F.E. Round, ord. nov."). | 
	
		| Thalassiophysaceae (Family) D.G.Mann (1990) | Page: App. I (p. 663). ("D.G. Mann, fam. nov."). | 
	
		| Thalassiophysales (Order) D.G.Mann (1990) | Page: App. I (p. 656). ("D.G. Mann, ord. nov."). | 
	
		| Thalassiosirophycidae (Subclass) Round & R.M. Crawford (1990) | Page: App. I (p. 651). ("F.E. Round & R.M. Crawford, subclass. nov."). | 
	
		| Toxariaceae (Family) Round (1990) | Page: App. I (p. 656). ("F.E. Round, fam. nov."). | 
	
		| Toxariales (Order) Round (1990) | Page: App. I (p. 656). ("F.E. Round, ord. nov."). | 
	
		| Triceratiales (Order) Round & R.M. Crawford (1990) | Page: App. I (p. 656). ("F.E. Round & R.M. Crawford, ord. nov."). | 
	
		| Urosolenia (Genus) Round & R.M. Crawford (1990) | Page: App. I (p. 679). ("F.E. Round & R.M. Crawford gen. nov."). |