Opinions from P. R. Bown and J. R. Young 1997
- 'Acaenolithus belongs to Arkhangelskiellaceae'
- 'Acuturris belongs to Calyptrosphaeraceae'
- 'Ahmuellerella belongs to Chiastozygaceae'
- 'Amphizygus belongs to Chiastozygaceae'
- 'Anfractus belongs to Calyptrosphaeraceae'
- 'Ansulasphaera belongs to Watznaueriaceae'
- 'Archaeozygodiscus belongs to Chiastozygaceae'
- 'Arkhangelskiales belongs to Prymnesiophyceae'
- 'Arkhangelskiella belongs to Arkhangelskiellaceae'
- 'Arkhangelskiellaceae belongs to Arkhangelskiales'
- 'Aspidolithus belongs to Arkhangelskiellaceae'
- 'Assipetra belongs to Polycyclolithaceae'
- 'Axopodorhabdaceae belongs to Podorhabdales'
- 'Axopodorhabdus belongs to Axopodorhabdaceae'
- 'Bibreviconus belongs to Watznaueriaceae'
- 'Bidiscus is a subjective synonym of Discorhabdus'
- 'Bifidalithus belongs to Calyptrosphaeraceae'
- 'Biscutaceae belongs to Podorhabdales'
- 'Biscutum belongs to Biscutaceae'
- 'Boletuvelum belongs to Biscutaceae'
- 'Bownia belongs to Chiastozygaceae'
- 'Braarudosphaera belongs to Braarudosphaeraceae'
- 'Braarudosphaeraceae belongs to Prymnesiophycidae'
- 'Broinsonia belongs to Arkhangelskiellaceae'
- 'Bucanthus belongs to Parhabdolithaceae'
- 'Bukryaster belongs to Braarudosphaeraceae'
- 'Bukrylithus belongs to Chiastozygaceae'
- 'Bussonius belongs to Watznaueriaceae'
- 'Calcicalathina belongs to Rhagodiscaceae'
- 'Calcivascularis belongs to Eoconusphaeraceae'
- 'Calculites belongs to Calyptrosphaeraceae'
- 'Calyculaceae belongs to Podorhabdales'
- 'Calyculus belongs to Calyculaceae'
- 'Calyptrosphaeraceae belongs to Prymnesiophyceae'
- 'Carinolithus belongs to Calyculaceae'
- 'Catillus is a subjective synonym of Calyculus'
- 'Centosphaera belongs to Prymnesiophycidae'
- 'Ceratolithina belongs to Prymnesiophycidae'
- 'Ceratolithoides belongs to Prymnesiophycidae'
- 'Chiastozygaceae belongs to Eiffellithales'
- 'Chiastozygus belongs to Chiastozygaceae'
- 'Cleistorhabdus belongs to Axopodorhabdaceae'
- 'Coccosphaerida belongs to Calyptrosphaeraceae'
- 'Conusphaera belongs to Eoconusphaeraceae'
- 'Corollithion belongs to Stephanolithiaceae'
- 'Crepidolithus belongs to Chiastozygaceae'
- 'Cretarhabdaceae belongs to Podorhabdales'
- 'Cretarhabdus belongs to Cretarhabdaceae'
- 'Cribrocorona belongs to Axopodorhabdaceae'
- 'Cribrosphaerella belongs to Axopodorhabdaceae'
- 'Crucibiscutum belongs to Biscutaceae'
- 'Crucicribrum belongs to Kamptneriaceae'
- 'Cruciellipsis belongs to Cretarhabdaceae'
- 'Crucirhabdus belongs to Parhabdolithaceae'
- 'Cyclagelosphaera belongs to Watznaueriaceae'
- 'Cylindralithus belongs to Watznaueriaceae'
- 'Darwinilithus belongs to Watznaueriaceae'
- 'Dekapodorhabdus belongs to Axopodorhabdaceae'
- 'Diadorhombus belongs to Chiastozygaceae'
- 'Diazomatolithus belongs to Watznaueriaceae'
- 'Diductius belongs to Parhabdolithaceae'
- 'Diloma belongs to Eiffellithaceae'
- 'Discorhabdus belongs to Biscutaceae'
- 'Dodekapodorhabdus belongs to Axopodorhabdaceae'
- 'Eiffellithaceae belongs to Eiffellithales'
- 'Eiffellithales belongs to Prymnesiophyceae'
- 'Eiffellithus belongs to Eiffellithaceae'
- 'Eoconusphaera belongs to Eoconusphaeraceae'
- 'Eoconusphaeraceae belongs to Prymnesiophycidae'
- 'Eprolithus belongs to Polycyclolithaceae'
- 'Ethmorhabdus belongs to Axopodorhabdaceae'
- 'Farhania belongs to Polycyclolithaceae'
- 'Faviconus belongs to Nannoconaceae'
- 'Flabellites belongs to Cretarhabdaceae'
- 'Gaarderella belongs to Biscutaceae'
- 'Gartnerago belongs to Kamptneriaceae'
- 'Gephyrobiscutum belongs to Biscutaceae'
- 'Glaukolithus is a subjective synonym of Zeugrhabdotus'
- 'Goniolithus belongs to Goniolithaceae'
- 'Gorkaea belongs to Chiastozygaceae'
- 'Grantarhabdus belongs to Cretarhabdaceae'
- 'Haqius belongs to Prymnesiophycidae'
- 'Hayesites belongs to Polycyclolithaceae'
- 'Helenea belongs to Cretarhabdaceae'
- 'Helicolithus belongs to Eiffellithaceae'
- 'Heteromarginatus belongs to Chiastozygaceae'
- 'Hexalithus belongs to Polycyclolithaceae'
- 'Isocrystallithus belongs to Calyptrosphaeraceae'
- 'Kamptneriaceae belongs to Arkhangelskiales'
- 'Kamptnerius belongs to Kamptneriaceae'
- 'Kokia belongs to Prymnesiophycidae'
- 'Lacunolithus belongs to Calyptrosphaeraceae'
- 'Laguncula belongs to Prymnesiophycidae'
- 'Lapideacassaceae belongs to Prymnesiophyceae'
- 'Lapideacassis belongs to Lapideacassaceae'
- 'Liliasterites belongs to Prymnesiophycidae'
- 'Lithastrinus belongs to Polycyclolithaceae'
- 'Lithraphidites belongs to Microrhabdulaceae'
- 'Lotharingius belongs to Watznaueriaceae'
- 'Loxolithus belongs to Chiastozygaceae'
- 'Lucianorhabdus belongs to Calyptrosphaeraceae'
- 'Manivitella belongs to Tubodiscaceae'
- 'Markalius belongs to Prymnesiophycidae'
- 'Mathasterites belongs to Prymnesiophycidae'
- 'Mazaganella belongs to Mazaganellaceae'
- 'Mazaganellaceae belongs to Podorhabdales'
- 'Metadoga belongs to Calyptrosphaeraceae'
- 'Micrantholithus belongs to Braarudosphaeraceae'
- 'Microrhabdulaceae belongs to Prymnesiophycidae'
- 'Microrhabdulus belongs to Microrhabdulaceae'
- 'Microstaurus is a subjective synonym of Helenea'
- 'Micula belongs to Polycyclolithaceae'
- 'Millbrookia is a subjective synonym of Crepidolithus'
- 'Miravetesina belongs to Cretarhabdaceae'
- 'Misceomarginatus belongs to Chiastozygaceae'
- 'Mitrolithus belongs to Parhabdolithaceae'
- 'Monomarginatus belongs to Chiastozygaceae'
- 'Multipartis belongs to Calyptrosphaeraceae'
- 'Munarinus belongs to Calyptrosphaeraceae'
- 'Nannoconaceae belongs to Prymnesiophycidae'
- 'Nannoconus belongs to Nannoconaceae'
- 'Neocrepidolithus belongs to Chiastozygaceae'
- 'Nodosella is a subjective synonym of Stradnerlithus'
- 'Octocyclus belongs to Axopodorhabdaceae'
- 'Octolithus belongs to Calyptrosphaeraceae'
- 'Octopodorhabdus belongs to Axopodorhabdaceae'
- 'Okkolithus belongs to Calyptrosphaeraceae'
- 'Orastrum belongs to Calyptrosphaeraceae'
- 'Orthogonoides belongs to Prymnesiophycidae'
- 'Ottavianus belongs to Calyptrosphaeraceae'
- 'Palaeopontosphaera is a subjective synonym of Biscutum'
- 'Parhabdolithaceae belongs to Stephanolithiales'
- 'Parhabdolithus belongs to Parhabdolithaceae'
- 'Percivalia belongs to Rhagodiscaceae'
- 'Perrisocyclus belongs to Axopodorhabdaceae'
- 'Petrarhabdus belongs to Prediscosphaeraceae'
- 'Petrobrasiella belongs to Calyptrosphaeraceae'
- 'Pharus belongs to Calyptrosphaeraceae'
- 'Pickelhaube belongs to Cretarhabdaceae'
- 'Placozygus belongs to Chiastozygaceae'
- 'Podorhabdales belongs to Prymnesiophyceae'
- 'Podorhabdus belongs to Axopodorhabdaceae'
- 'Polycostella belongs to Polycyclolithaceae'
- 'Polycyclolilthus is a subjective synonym of Eprolithus'
- 'Polycyclolithaceae belongs to Prymnesiophycidae'
- 'Polypodorhabdus belongs to Cretarhabdaceae'
- 'Prediscosphaera belongs to Prediscosphaeraceae'
- 'Prediscosphaeraceae belongs to Podorhabdales'
- 'Prinsiosphaera belongs to Prymnesiophycidae'
- 'Prolatipatella belongs to Prymnesiophycidae'
- 'Pseudoconus belongs to Calyptrosphaeraceae'
- 'Pseudolithraphidites belongs to Microrhabdulaceae'
- 'Pseudomicula belongs to Microrhabdulaceae'
- 'Quadrum belongs to Polycyclolithaceae'
- 'Radiolithus belongs to Polycyclolithaceae'
- 'Ramsaya belongs to Calyptrosphaeraceae'
- 'Reinhardtites belongs to Chiastozygaceae'
- 'Repagulum belongs to Prymnesiophycidae'
- 'Retecapsa belongs to Cretarhabdaceae'
- 'Rhabdolekiscus is a subjective synonym of Rhabdophidites'
- 'Rhabdophidites belongs to Chiastozygaceae'
- 'Rhagodiscaceae belongs to Eiffellithales'
- 'Rhagodiscus belongs to Rhagodiscaceae'
- 'Rhombolithion belongs to Stephanolithiaceae'
- 'Rotelapillus belongs to Stephanolithiaceae'
- 'Rothia belongs to Eiffellithaceae'
- 'Rucinolithus belongs to Polycyclolithaceae'
- 'Russellia belongs to Calyptrosphaeraceae'
- 'Saepiovirgata belongs to Calyptrosphaeraceae'
- 'Scampanella is a subjective synonym of Lapideacassis'
- 'Scapholithus is a subjective synonym of Calciosolenia'
- 'Schizosphaerella belongs to Schizosphaerellaceae'
- 'Schizosphaerellaceae belongs to Prymnesiophycidae'
- 'Semihololithus belongs to Calyptrosphaeraceae'
- 'Seribiscutum belongs to Biscutaceae'
- 'Similiscutum belongs to Biscutaceae'
- 'Sollasites belongs to Biscutaceae'
- 'Speetonia belongs to Cretarhabdaceae'
- 'Staurolithites belongs to Chiastozygaceae'
- 'Staurorhabdus is a subjective synonym of Staurolithites'
- 'Stephanolithiaceae belongs to Stephanolithiales'
- 'Stephanolithiales belongs to Prymnesiophyceae'
- 'Stephanolithion belongs to Stephanolithiaceae'
- 'Stoverius belongs to Stephanolithiaceae'
- 'Stradnerlithus belongs to Stephanolithiaceae'
- 'Tegulalithus belongs to Polycyclolithaceae'
- 'Tegumentum belongs to Eiffellithaceae'
- 'Teichorhabdus belongs to Axopodorhabdaceae'
- 'Tetrapodorhabdus belongs to Axopodorhabdaceae'
- 'Thiersteinia belongs to Arkhangelskiellaceae'
- 'Thurmannolithion belongs to Parhabdolithaceae'
- 'Timorella belongs to Parhabdolithaceae'
- 'Tortolithus belongs to Prymnesiophycidae'
- 'Tranolithus belongs to Chiastozygaceae'
- 'Trapezopentus belongs to Braarudosphaeraceae'
- 'Triscutum belongs to Mazaganellaceae'
- 'Truncatoscaphus belongs to Stephanolithiaceae'
- 'Tubirhabdus belongs to Chiastozygaceae'
- 'Tubodiscaceae belongs to Podorhabdales'
- 'Tubodiscus belongs to Tubodiscaceae'
- 'Umbria belongs to Parhabdolithaceae'
- 'Uniplanarius belongs to Polycyclolithaceae'
- 'Vagalapilla is a subjective synonym of Staurolithites'
- 'Vekshinella is a subjective synonym of Staurolithites'
- 'Vikosphaera is a subjective synonym of Calyculus'
- 'Watkinsia belongs to Prymnesiophycidae'
- 'Watznaueria belongs to Watznaueriaceae'
- 'Watznaueriaceae belongs to Watznaueriales'
- 'Watznaueriales belongs to Prymnesiophyceae'
- 'Zebrashapka belongs to Calyptrosphaeraceae'
- 'Zeugrhabdotus belongs to Chiastozygaceae'