Opinions from A. Williams et al. 2007
- 'Acanthalosia belongs to Echinalosiinae'
- 'Adatsagochonetes belongs to Anopliinae'
- 'Adygellopsis belongs to Dielasmatoidea'
- 'Altaethyrella is a nomen dubium'
- 'Anomalocalyx belongs to Kutorginida'
- 'Antigoniarcula belongs to Terebratellidina'
- 'Archaeorthis belongs to Archaeorthidae'
- 'Archboldina belongs to Lethamiini'
- 'Arctohedridae belongs to Clitambonitoidea'
- 'Asperlinus belongs to Auriculispinini'
- 'Athyrorhynchia belongs to Dielasmatoidea'
- 'Atlanticocoelia is a nomen dubium'
- 'Auloprotonia belongs to Dictyoclostini'
- 'Auriculispina belongs to Auriculispinini'
- 'Auriculispinini belongs to Auriculispininae'
- 'Aurilinoproductus belongs to Linoproductinae'
- 'Auritusinia is a subjective synonym of Costatumulus'
- 'Avoniini belongs to Overtoniinae'
- 'Bamberina belongs to Spiriferellidae'
- 'Bandaleta belongs to Taphrodontinae'
- 'Bandoproductus belongs to Lyoniini'
- 'Bicamella belongs to Psilocamarinae'
- 'Binderochonetes is a subjective synonym of Striochonetes'
- 'Biplatyconcha belongs to Strophalosiinae'
- 'Buckmanithyris belongs to Dyscolioidea'
- 'Callyconcha belongs to Costispiniferini'
- 'Callytharrella belongs to Dictyoclostini'
- 'Cancrinelloides belongs to Lyoniini'
- 'Capillaria belongs to Echinalosiinae'
- 'Cardiarina belongs to Cardiarinidae'
- 'Cardiarinidae belongs to Rhynchonellata'
- 'Careoseptum belongs to Cyrolexinae'
- 'Carinatothyris belongs to Dyscolioidea'
- 'Caruthia belongs to Productinini'
- 'Celidocrania belongs to Craniidae'
- 'Chaoiella belongs to Dictyoclostini'
- 'Chianella belongs to Auriculispinini'
- 'Chilenochonetes belongs to Caenanopliinae'
- 'Cimmeriella belongs to Linoproductinae'
- 'Colemanosteges belongs to Aulosteginae'
- 'Comelicothyris belongs to Janicepsinae'
- 'Conispirifer belongs to Conispiriferidae'
- 'Conispiriferidae belongs to Cyrtospiriferoidea'
- 'Contraspina belongs to Waagenoconchini'
- 'Coopericus belongs to Schrenkiellinae'
- 'Costatumulus belongs to Auriculispinini'
- 'Costiferina belongs to Latispiniferini'
- 'Cundaria belongs to Permasyrinxinae'
- 'Cyrtonotella belongs to Archaeorthidae'
- 'Dallina miyatokoensis is recombined as Pegmathyris miyatokoensis'
- 'Dasysaria belongs to Dictyoclostini'
- 'Dictyoclostini belongs to Dictyoclostinae'
- 'Dictyoclostus belongs to Dictyoclostini'
- 'Diplonorthis belongs to Archaeorthidae'
- 'Draborthis belongs to Draboviidae'
- 'Duartea belongs to Yakovleviini'
- 'Dyschrestia belongs to Lethamiini'
- 'Echinalosia belongs to Echinalosiinae'
- 'Eichwaldithyris belongs to Terebratuloidea'
- 'Eileenella belongs to Chonopectidae'
- 'Eocramatiidae belongs to Chilidiopsoidea'
- 'Eogryphus belongs to Terebratellidina'
- 'Exlaminella belongs to Exlaminellinae'
- 'Exlaminellinae belongs to Wellerellidae'
- 'Falciferula belongs to Terebratulidina'
- 'Filiconcha belongs to Auriculispinini'
- 'Globiella belongs to Auriculispinini'
- 'Gnamptorhynchos belongs to Platystrophiidae'
- 'Grandaurispininae is replaced by Paucispinauriinae'
- 'Gruntea belongs to Spirigerellinae'
- 'Gruntelasma belongs to Dielasmatidae'
- 'Guadalupelosia belongs to Dasyalosiinae'
- 'Gunnarella belongs to Strophomeninae'
- 'Gwyniella belongs to Terebratellidina'
- 'Haljalanites is a subjective synonym of Bekkerina'
- 'Heliomedusa belongs to Brachiopoda'
- 'Hercothyris belongs to Terebratellidina'
- 'Inflatia belongs to Yakovleviini'
- 'Janiceps belongs to Janicepsinae'
- 'Janicepsinae belongs to Athyrididae'
- 'Jinomarginifera belongs to Paucispiniferini'
- 'Johndearia belongs to Ingelarellinae'
- 'Kakanuiella belongs to Thecidellininae'
- 'Kaninochonetes belongs to Anopliinae'
- 'Kellerella belongs to Meristelloidea'
- 'Kingenella belongs to Terebratellidina'
- 'Kolymaella belongs to Auriculispinini'
- 'Kotlaia belongs to Schizophoriidae'
- 'Kunlunia belongs to Dictyoclostini'
- 'Kurakithyris belongs to Terebratellidina'
- 'Kvania belongs to Giraldiellidae'
- 'Kyutepia belongs to Permasyrinxinae'
- 'Labaella belongs to Plicatiferini'
- 'Labaellidae is an invalid subgroup of Productoidea'
- 'Ladoliplica [misspelled as Ladoplica] belongs to Martiniinae'
- 'Laevorhynchia belongs to Paranorellininae'
- 'Lazarevia belongs to Plicatiferini'
- 'Lazarevonia belongs to Avoniini'
- 'Leptelloidea (Benignites) was reranked as Benignites and belongs to Leptellininae'
- 'Leptothyrellopsis belongs to Terebratellidina'
- 'Lethamia belongs to Lethamiini'
- 'Lethamiini belongs to Overtoniinae'
- 'Licharewiconcha belongs to Institellinae'
- 'Licharewiconchidae is a subjective synonym of Institellinae'
- 'Linoprotonia belongs to Auriculispinini'
- 'Linshuichonetes belongs to Riosanetinae'
- 'Liraplecta belongs to Liraplectini'
- 'Liraplectini belongs to Dictyoclostinae'
- 'Liraria belongs to Auriculispinini'
- 'Liufaia belongs to Stenoscismatinae'
- 'Loperia belongs to Protorthidae'
- 'Lutetiarcula belongs to Terebratellidina'
- 'Lyonia belongs to Lyoniini'
- 'Lyoniini belongs to Auriculispininae'
- 'Magadania belongs to Auriculispinini'
- 'Magas belongs to Terebratellidina'
- 'Magniplicatina belongs to Auriculispinini'
- 'Marginalosia belongs to Echinalosiinae'
- 'Mayaothyris belongs to Terebratulidina'
- 'Megalosia is an objective synonym of Biplatyconcha'
- 'Meishanorhynchia belongs to Paranorellininae'
- 'Mesocrania belongs to Craniidae'
- 'Mesopunctia belongs to Glendoniinae'
- 'Minororthis belongs to Dalmanellinae'
- 'Miogryphus belongs to Terebratellidina'
- 'Nahoniella belongs to Licharewiidae'
- 'Nambdoania belongs to Lyoniini'
- 'Nambuccalinus belongs to Lyoniini'
- 'Nanorthidae is an invalid subgroup of Orthoidea'
- 'Nanorthis belongs to Plectorthidae'
- 'Neochonetes (Huangichonetes) belongs to Neochonetes'
- 'Neochonetes (Nongtaia) belongs to Neochonetes'
- 'Neochonetes (Zhongyingia) belongs to Neochonetes'
- 'Neocramatia belongs to Eocramatiidae'
- 'Neopsilocamara belongs to Psilocamarinae'
- 'Neospirifer (Quadrospira) was reranked as Quadrospira and belongs to Neospiriferinae'
- 'Neospirifer plicatus is recombined as Quadrospira plicatus'
- 'Neospirifer postplicatus is recombined as Quadrospira postplicatus'
- 'Neospirifer tibetensis is recombined as Quadrospira tibetensis'
- 'Nicoloidea belongs to Archaeorthidae'
- 'Nikitinia belongs to Lyoniini'
- 'Nikolaespira is a misspelling of Nikolaispira'
- 'Niutoushania belongs to Dictyoclostini'
- 'Nothorthis belongs to Archaeorthidae'
- 'Oepikina anijana grandis is recombined as Bekkerina grandis'
- 'Ogilviecoelia belongs to Ambocoeliinae'
- 'Oleneothyris belongs to Terebratuloidea'
- 'Orthotoma belongs to Orthotomidae'
- 'Orthotomidae belongs to Terebratulidina'
- 'Ovatia belongs to Auriculispinini'
- 'Pachycyrtella belongs to Permasyrinxinae'
- 'Papiliolinus belongs to Auriculispinini'
- 'Papulinella belongs to Notospiriferinae'
- 'Paradygella belongs to Dielasmatoidea'
- 'Parallelostrophia belongs to Clarkellidae'
- 'Paucispinauriinae belongs to Linoproductidae'
- 'Pegmathyris belongs to Dallininae'
- 'Peristerothyris belongs to Loboidothyridoidea'
- 'Pinegeria belongs to Paucispinauriinae'
- 'Pinegochonetes belongs to Caenanopliinae'
- 'Pitakpaivania belongs to Retariini'
- 'Pleurorthis belongs to Archaeorthidae'
- 'Praeneothyris belongs to Terebratellidina'
- 'Proanadyrella belongs to Dielasmatoidea'
- 'Productus (Tschernyschewia) parilis is recombined as Reedosepta parilis'
- 'Protoanidanthus is a subjective synonym of Anidanthus'
- 'Pseudohaydenella belongs to Auriculispinini'
- 'Pseudopygoides belongs to Dielasmatoidea'
- 'Pseudorhaetina belongs to Terebratulidina'
- 'Pseudostrophalosia belongs to Echinalosiinae'
- 'Pseudostrophomena belongs to Strophomeninae'
- 'Pugilis belongs to Dictyoclostini'
- 'Radkeina belongs to Mesonomiinae'
- 'Rafinesquina anijana is recombined as Oepikina anijana' according to Alichova 1953
- 'Rafinesquina anijana is recombined as Bekkerina anijana'
- 'Rectotrophia belongs to Rectotrophiinae'
- 'Rectotrophiinae belongs to Huenellidae'
- 'Reedosepta belongs to Tschernyschewiidae'
- 'Regrantia belongs to Compressoproductinae'
- 'Reticulatia belongs to Reticulatiini'
- 'Reticulatiini belongs to Yakovleviinae'
- 'Rhynchora belongs to Terebratellidina'
- 'Rhynchorina belongs to Terebratellidina'
- 'Riograndella belongs to Archaeorthidae'
- 'Riosanetinae belongs to Rugosochonetidae'
- 'Rugatia belongs to Dictyoclostini'
- 'Saesorthis belongs to Protorthidae'
- 'Sajakella belongs to Yakovleviini'
- 'Sedecularia belongs to Stenoscismatinae'
- 'Sogxianthyris belongs to Loboidothyridoidea'
- 'Sortanella belongs to Leptestiidae'
- 'Spargospinosa belongs to Paucispinauriinae'
- 'Spirifer tornacensis is recombined as Atylephorus tornacensis'
- 'Spirifera hardmani is recombined as Quadrospira hardmani'
- 'Spitzbergenia belongs to Auriculispinini'
- 'Stereochia belongs to Latispiniferini'
- 'Stictozoster belongs to Lethamiini'
- 'Striapustula belongs to Auriculispinini'
- 'Strophomena primula is recombined as Benignites primula'
- 'Syrella belongs to Permasyrinxinae'
- 'Tarimoplecta belongs to Liraplectini'
- 'Teleoproductus belongs to Auriculispinini'
- 'Tethyochonetes belongs to Rugosochonetinae'
- 'Tethysiella belongs to Paramarginiferini'
- 'Thyratryaria belongs to Dielasmatoidea'
- 'Tiaretithyris belongs to Terebratellidina'
- 'Tigillumia belongs to Ingelarellinae'
- 'Timacella belongs to Terebratellidina'
- 'Tomiopsis (Geothomasia) was reranked as Geothomasia and belongs to Ingelarellinae'
- 'Tomiopsis teicherti is recombined as Geothomasia teicherti'
- 'Trigonellina belongs to Kingenoidea'
- 'Trigonoproductus belongs to Tschernyschewiidae'
- 'Trigrammaria virve belongs to Trigrammaria'
- 'Tropidoleptidae belongs to Rhynchonellata'
- 'Tropidoleptus belongs to Tropidoleptidae'
- 'Tschernyschewia inexpectans is recombined as Trigonoproductus inexpectans'
- 'Tschernyschewiidae belongs to Aulostegoidea'
- 'Tuberculatella belongs to Lethamiini'
- 'Tubersulculatella is a misspelling of Tuberculatella'
- 'Tubersulculus belongs to Lethamiini'
- 'Undaria belongs to Auriculispinini'
- 'Undellaria belongs to Auriculispinini'
- 'Vex belongs to Terebratulidina'
- 'Vitiliproductus belongs to Auriculispinini'
- 'Wadispirifer is a subjective synonym of Neospirifer'
- 'Wadispirifer hongdeensis is recombined as Neospirifer hongdeensis'
- 'Waldheimia compacta belongs to Waldheimia' according to White and St John 1867
- 'Waldheimia compacta is recombined as Cryptacanthia compacta'
- 'Woolagia belongs to Permasyrinxinae'
- 'Wooramella belongs to Lethamiini'
- 'Wynnia belongs to Paterinidae'
- 'Xinanorthis belongs to Archaeorthidae'
- 'Xinjiangthyris belongs to Terebratellidina'
- 'Yabeithyris belongs to Terebratellidina'
- 'Yakovlevia belongs to Yakovleviini'
- 'Yakovleviinae belongs to Productidae'
- 'Yakovleviini belongs to Yakovleviinae'
- 'Yuezhuella belongs to Terebratellidina'
- 'Yukonospirifer belongs to Pterospiriferinae'
- 'Zenobiathyridae is an invalid subgroup of Terebratulidina'
- 'Zenobiathyris belongs to Terebratulidina'
- 'Zhidothyris belongs to Terebratellidina'