Opinions from S. Bengtson 1992
- 'Acanthomeridion belongs to Archaeocopida'
- 'Acrothele belongs to Acrotretida'
- 'Acrothyra belongs to Acrotretida'
- 'Acrotreta belongs to Acrotretida'
- 'Acrotretida belongs to Inarticulata'
- 'Agnostida belongs to Trilobita'
- 'Agyrekia belongs to Kutorginida'
- 'Aksuglobulus belongs to Problematica'
- 'Aldanotreta belongs to Articulata'
- 'Alisina belongs to Obolellida'
- 'Aluta belongs to Archaeocopida'
- 'Anabarella belongs to Cyrtonellida'
- 'Antohipponicharion is corrected as Antihipponicharion and belongs to Archaeocopida'
- 'Anzalia belongs to Problematica'
- 'Archaeocopida belongs to Ostracoda'
- 'Archaeospira belongs to Cyrtonellida'
- 'Archaeostraca belongs to Malacostraca'
- 'Askepasma belongs to Paterinida'
- 'Auriculatella belongs to Archaeocopida'
- 'Auriculatespira is corrected as Auriculaspira and belongs to Cyrtonellida'
- 'Bajiella belongs to Archaeocopida'
- 'Bellerophontida belongs to Monoplacophora'
- 'Beltania belongs to Problematica'
- 'Bemella belongs to Cyrtonellida'
- 'Beyrichona belongs to Archaeocopida'
- 'Bicia belongs to Obolellida'
- 'Bija belongs to Problematica'
- 'Billingsella belongs to Orthida'
- 'Bojarinovia belongs to Articulata'
- 'Botsfordia belongs to Acrotretida'
- 'Bradoria belongs to Archaeocopida'
- 'Bradorona is a subjective synonym of Bradoria'
- 'Cambria belongs to Archaeocopida'
- 'Cambroclavus belongs to Zhijinitidae'
- 'Canadaspidida belongs to Malacostraca'
- 'Changshabaella belongs to Archaeocopida'
- 'Chelicerata belongs to Arthropoda'
- 'Combinivalvula belongs to Archaeocopida'
- 'Comptaluta belongs to Archaeocopida'
- 'Corynexochida belongs to Trilobita'
- 'Cryptotreta belongs to Articulata'
- 'Curticia belongs to Brachiopoda'
- 'Cyrtonellida belongs to Monoplacophora'
- 'Dabashanella belongs to Archaeocopida'
- 'Dahaiella belongs to Archaeocopida'
- 'Deiradovclavus belongs to Zhijinitidae'
- 'Deltaclavus belongs to Zhijinitidae'
- 'Diandongia belongs to Acrotretida'
- 'Dictyonina belongs to Paterinida'
- 'Dielymella belongs to Archaeocopida'
- 'Dinomischus belongs to Problematica'
- 'Dysoristus belongs to Acrotretida'
- 'Edreja belongs to Acrotretida'
- 'Eldonia belongs to Problematica'
- 'Emmonsaspis belongs to Problematica'
- 'Eoconcha belongs to Orthida'
- 'Eocucumaria belongs to Problematica'
- 'Eoescharopora belongs to Problematica'
- 'Eolimulus belongs to Eolimulidae'
- 'Eotebenna belongs to Cyrtonellida'
- 'Eothele belongs to Brachiopoda'
- 'Epactridion belongs to Archaeocopida'
- 'Escasona is a subjective synonym of Beyrichona'
- 'Facivermis belongs to Problematica'
- 'Ginella is replaced by Ilsanella'
- 'Glyptias belongs to Acrotretida'
- 'Glyptoria belongs to Orthida'
- 'Guangyuanella belongs to Archaeocopida'
- 'Hadrotreta belongs to Acrotretida'
- 'Hamusella belongs to Cyrtonellida'
- 'Hanchiangella belongs to Archaeocopida'
- 'Hanchungella belongs to Archaeocopida'
- 'Haupiria belongs to Kutorginida'
- 'Helcionella belongs to Cyrtonellida'
- 'Heliomedusa belongs to Brachiopoda'
- 'Hipponicharion belongs to Archaeocopida'
- 'Homotreta belongs to Acrotretida'
- 'Houlongdongella belongs to Archaeocopida'
- 'Huangshandongella belongs to Problematica'
- 'Hubeispira belongs to Cyrtonellida'
- 'Hymenocaris belongs to Hymenostraca'
- 'Hymenostraca belongs to Malacostraca'
- 'Igorella belongs to Cyrtonellida'
- 'Ilsanella belongs to Cyrtonellida'
- 'Indiana belongs to Archaeocopida'
- 'Indianites is a subjective synonym of Indiana'
- 'Indota [misspelled as Indoto] belongs to Archaeocopida'
- 'Iphidea is replaced by Paterina'
- 'Isoclavus is a subjective synonym of Cambroclavus'
- 'Israelaria belongs to Orthida'
- 'Ivshinella belongs to Obolellida'
- 'Khairkhania belongs to Cyrtonellida'
- 'Khasagtina belongs to Articulata'
- 'Konicekion belongs to Archaeocopida'
- 'Kotujella belongs to Orthida'
- 'Kundatella belongs to Orthida'
- 'Kunmingella belongs to Archaeocopida'
- 'Kunyangella belongs to Archaeocopida'
- 'Kutorgina belongs to Kutorginida'
- 'Kutorginida belongs to Inarticulata'
- 'Labyrinthus belongs to Problematica'
- 'Latouchella belongs to Cyrtonellida'
- 'Leioria belongs to Orthida'
- 'Leptostega belongs to Cyrtonellida'
- 'Leshanella belongs to Archaeocopida'
- 'Liangshanella belongs to Archaeocopida'
- 'Lingulella belongs to Lingulida'
- 'Lingulida belongs to Articulata'
- 'Linnarssonia belongs to Acrotretida'
- 'Luella belongs to Archaeocopida'
- 'Mackinnonia belongs to Cyrtonellida'
- 'Magnicanalis belongs to Obolellida'
- 'Malacostraca was reranked as a class and belongs to Crustacea'
- 'Malongella belongs to Archaeocopida'
- 'Margaretia belongs to Problematica'
- 'Matutella belongs to Orthida'
- 'Meishucunella belongs to Archaeocopida'
- 'Merostomata belongs to Chelicerata'
- 'Mickwitzia belongs to Paterinida'
- 'Micromitra belongs to Paterinida'
- 'Micropylepora belongs to Problematica'
- 'Monasterium belongs to Archaeocopida'
- 'Monoconvexa belongs to Obolellida'
- 'Mononotella belongs to Archaeocopida'
- 'Nanchengella belongs to Archaeocopida'
- 'Narynella belongs to Orthida'
- 'Neobolus belongs to Brachiopoda'
- 'Neokunmingella belongs to Archaeocopida'
- 'Nochoroiella belongs to Obolellida'
- 'Obolella belongs to Obolellida'
- 'Obolellida belongs to Articulata'
- 'Obolopsis belongs to Lingulida'
- 'Obolus belongs to Lingulida'
- 'Odontopleurida belongs to Trilobita'
- 'Oelandia is a subjective synonym of Latouchella'
- 'Oelandiella is a subjective synonym of Latouchella'
- 'Ophiosema belongs to Archaeocopida'
- 'Orthida belongs to Articulata'
- 'Ostracoda belongs to Crustacea'
- 'Ovaluta belongs to Archaeocopida'
- 'Palaeocopida belongs to Ostracoda'
- 'Palaeoschmidtites belongs to Lingulida'
- 'Paleomerus is a subjective synonym of Strabops'
- 'Parailsanella belongs to Cyrtonellida'
- 'Parakunmingella belongs to Archaeocopida'
- 'Paraphaseolella belongs to Archaeocopida'
- 'Pararaconus belongs to Cyrtonellida'
- 'Paterina belongs to Paterinida'
- 'Paterinida belongs to Articulata'
- 'Pelagiella belongs to Cyrtonellida'
- 'Perspicaris belongs to Canadaspidida'
- 'Phaseolella belongs to Archaeocopida'
- 'Polyphyma belongs to Archaeocopida'
- 'Poratites belongs to Problematica'
- 'Proeccyliopterus belongs to Cyrtonellida'
- 'Prototreta belongs to Acrotretida'
- 'Protowenella belongs to Bellerophontida'
- 'Pseudoclavus belongs to Zhijinitidae'
- 'Pseudokunmingella belongs to Archaeocopida'
- 'Psiloria belongs to Orthida'
- 'Ptychopariida belongs to Trilobita'
- 'Radiaxialia belongs to Problematica'
- 'Randomia belongs to Cyrtonellida'
- 'Salanygolina belongs to Articulata'
- 'Schizopholis belongs to Acrotretida'
- 'Sellula belongs to Archaeocopida'
- 'Shensiella belongs to Archaeocopida'
- 'Sibiria belongs to Obolellida'
- 'Silesicaris belongs to Malacostraca'
- 'Sinoclavus is a subjective synonym of Cambroclavus'
- 'Songlinella belongs to Archaeocopida'
- 'Spinulothele belongs to Acrotretida'
- 'Stellostomites is a subjective synonym of Eldonia'
- 'Stenotheca belongs to Cyrtonellida'
- 'Strabops belongs to Merostomata'
- 'Sugaites is a subjective synonym of Cambroclavus'
- 'Sunella belongs to Archaeocopida'
- 'Tanbaoites is a subjective synonym of Cambroclavus'
- 'Tannuella belongs to Cyrtonellida'
- 'Tannuolina belongs to Tannuolinidae'
- 'Tannuolinidae belongs to Metazoa'
- 'Tcharella belongs to Orthida'
- 'Tetradellidae belongs to Palaeocopida'
- 'Trematobolus belongs to Obolellida'
- 'Trematosia belongs to Kutorginida'
- 'Trilobita belongs to Arthropoda'
- 'Tropidiana belongs to Archaeocopida'
- 'Tsunyiella belongs to Archaeocopida'
- 'Tuvinia belongs to Problematica'
- 'Ushkarella belongs to Tetradellidae'
- 'Walcottella belongs to Archaeocopida'
- 'Walcottina belongs to Paterinida'
- 'Westonia belongs to Lingulida'
- 'Wuchiapingella belongs to Archaeocopida'
- 'Wutingella belongs to Archaeocopida'
- 'Xenusion belongs to Problematica'
- 'Yangtzeconus belongs to Cyrtonellida'
- 'Yangtzespira is a subjective synonym of Archaeospira'
- 'Yaoyingella belongs to Archaeocopida'
- 'Yeshanella belongs to Archaeocopida'
- 'Yochelcionella belongs to Cyrtonellida'
- 'Yorkia belongs to Obolellida'
- 'Yunanospira is a subjective synonym of Archaeospira'
- 'Yunnanomedusa is a subjective synonym of Eldonia'
- 'Zepaera belongs to Archaeocopida'
- 'Zhenpingella belongs to Archaeocopida'
- 'Zhijinella belongs to Archaeocopida'
- 'Zhijinites belongs to Zhijinitidae'
- 'Zhongbaoella belongs to Archaeocopida'