Opinions from R. S. Bassler 1911
- 'Amplexoporidae belongs to Trepostomata'
- 'Anaphragma belongs to Trematoporidae'
- 'Anaphragma mirabile belongs to Anaphragma' according to Ulrich and Bassler 1904
- 'Anaphragma mirabile cognata belongs to Anaphragma mirabile'
- 'Anolotichia belongs to Ceramoporidae'
- 'Anolotichia brevipora belongs to Anolotichia'
- 'Anolotichia ponderosa belongs to Anolotichia' according to Ulrich 1890
- 'Anolotichia revalensis belongs to Anolotichia'
- 'Anolotichia rhombica belongs to Anolotichia'
- 'Anolotichia sacculus belongs to Anolotichia'
- 'Archeopora angulosa belongs to Archeopora' according to Eichwald 1860
- 'Archeopora lamella belongs to Archeopora' according to Eichwald 1860
- 'Archeopora punctata belongs to Archeopora' according to Eichwald 1860
- 'Archeopora radians belongs to Archeopora' according to Eichwald 1860
- 'Arthroclema belongs to Arthrostylidae'
- 'Arthroclema armatum belongs to Arthroclema' according to Ulrich 1890
- 'Arthroclema pulchellum belongs to Arthroclema' according to Billings 1862
- 'Arthropora belongs to Ptilodictyonidae'
- 'Arthropora simplex belongs to Arthropora' according to Ulrich 1886
- 'Arthrostylidae belongs to Cryptostomata'
- 'Arthrostylus belongs to Arthrostylidae'
- 'Arthrostylus conjunctus belongs to Arthrostylus' according to Ulrich 1890
- 'Arthrostylus obliquus belongs to Arthrostylus' according to Ulrich 1890
- 'Aulopora arachnoidea is recombined as Stomatopora arachnoidea' according to Hall 1847
- 'Aulopora arachnoidea is recombined as Stomatopora arachnoidea'
- 'Batostoma belongs to Trematoporidae'
- 'Batostoma fertile belongs to Batostoma' according to Ulrich 1886
- 'Batostoma fertile circulare belongs to Batostoma fertile' according to Ulrich 1893
- 'Batostoma granulosum belongs to Batostoma'
- 'Batostoma irrasum is recombined as Hemiphragma irrasum'
- 'Batostoma magnopora belongs to Batostoma' according to Ulrich 1893
- 'Batostoma mickwitzi belongs to Batostoma'
- 'Batostoma winchelli belongs to Batostoma' according to Ulrich 1893
- 'Batostoma winchelli spinulosum belongs to Batostoma winchelli' according to Ulrich 1893
- 'Batostomellidae belongs to Trepostomata'
- 'Bythopora belongs to Batostomellidae'
- 'Bythopora fruticosa belongs to Bythopora' according to Miller and Dyer 1878
- 'Bythopora subgracilis belongs to Bythopora' according to Ulrich 1893
- 'Bythotrypa is a subjective synonym of Favositella'
- 'Calamopora alveolaris belongs to Calamopora' according to Goldfuss 1826
- 'Calamopora polymorpha belongs to Calamopora' according to Goldfuss 1826
- 'Calamopora reticulata belongs to Calamopora' according to Eichwald 1860
- 'Callopora elegantula is recombined as Hallopora elegantula'
- 'Callopora ligniformis belongs to Callopora' according to Dybowski 1877
- 'Callopora piriformis belongs to Callopora' according to Eichwald 1832
- 'Ceramopora belongs to Ceramoporidae'
- 'Ceramopora imbricata belongs to Ceramopora' according to Hall 1852
- 'Ceramopora intercellata belongs to Ceramopora'
- 'Ceramopora invenusta belongs to Ceramopora'
- 'Ceramopora socialis is recombined as Scenellopora socialis' according to Eichwald 1860
- 'Ceramopora socialis is recombined as Scenellopora socialis'
- 'Ceramopora spongiosa belongs to Ceramopora'
- 'Ceramoporella belongs to Ceramoporidae'
- 'Ceramoporella distincta belongs to Ceramoporella' according to Ulrich 1882
- 'Ceramoporella granulosa belongs to Ceramoporella' according to Ulrich 1890
- 'Ceramoporella granulosa minor belongs to Ceramoporella granulosa'
- 'Ceramoporella uxnormensis belongs to Ceramoporella'
- 'Ceramoporidae belongs to Cyclostomata'
- 'Chasmatopora belongs to Phylloporinidae'
- 'Cheilotrypa [misspelled as Chilotrypa] belongs to Fistuliporidae'
- 'Chilotrypa hispida belongs to Chilotrypa' according to Ulrich 1884
- 'Chilotrypa immatura belongs to Chilotrypa'
- 'Coeloclema belongs to Ceramoporidae'
- 'Coeloclema crassimurale belongs to Coeloclema'
- 'Coenites laciniatus is recombined as Coeloclema laciniatus' according to Eichwald 1860
- 'Coenites laciniatus is recombined as Coeloclema laciniatus'
- 'Constellaria belongs to Constellariidae'
- 'Constellaria varia belongs to Constellaria' according to Ulrich 1893
- 'Constellariidae belongs to Trepostomata'
- 'Corynotrypa belongs to Diastoporidae'
- 'Corynotrypa abrupta belongs to Corynotrypa'
- 'Corynotrypa barberi belongs to Corynotrypa'
- 'Corynotrypa schucherti belongs to Corynotrypa'
- 'Coscinium belongs to Cystodictyonidae'
- 'Coscinium praenuntium belongs to Coscinium'
- 'Crepipora belongs to Ceramoporidae'
- 'Crepipora impolita is recombined as Anolotichia impolita' according to Ulrich 1893
- 'Crepipora impolita is recombined as Anolotichia impolita'
- 'Crepipora incrassata belongs to Crepipora'
- 'Crepipora lunatifera belongs to Crepipora'
- 'Crepipora schmidti belongs to Crepipora'
- 'Crepipora simulans belongs to Crepipora' according to Ulrich 1882
- 'Cystodictyonidae belongs to Cryptostomata'
- 'Dekayella belongs to Heterotrypidae'
- 'Dekayella obscura belongs to Dekayella' according to Ulrich 1882
- 'Dekayella praenuntia belongs to Dekayella' according to Ulrich 1893
- 'Dekayella praenuntia naevigera belongs to Dekayella praenuntia' according to Ulrich 1893
- 'Diamesopora vaupeli is recombined as Coeloclema vaupeli'
- 'Dianulites belongs to Constellariidae'
- 'Dianulites apiculatus belongs to Dianulites' according to Eichwald 1829
- 'Dianulites collifera belongs to Dianulites'
- 'Dianulites grandis belongs to Dianulites'
- 'Dianulites haydenii belongs to Dianulites' according to Dybowski 1877
- 'Dianulites rhombicum is a subjective synonym of Anolotichia rhombica'
- 'Dianulites sulcatus belongs to Dianulites' according to Dybowski 1877
- 'Diastoporidae belongs to Cyclostomata'
- 'Didymopora is a subjective synonym of Fistulipora'
- 'Diplotrypa belongs to Trematoporidae'
- 'Diplotrypa bicornis belongs to Diplotrypa' according to Eichwald 1832
- 'Diplotrypa hennigi belongs to Diplotrypa'
- 'Diplotrypa infida is recombined as Mesotrypa infida'
- 'Diplotrypa moniliformis belongs to Diplotrypa'
- 'Diplotrypa westoni belongs to Diplotrypa' according to Ulrich 1889
- 'Dittopora belongs to Trematoporidae'
- 'Dittopora annulata belongs to Dittopora' according to Eichwald 1860
- 'Dittopora clavaeformis belongs to Dittopora' according to Dybowski 1877
- 'Dittopora colliculata belongs to Dittopora' according to Eichwald 1856
- 'Drymotrypa is a subjective synonym of Pseudohornera'
- 'Entalophoridae belongs to Cyclostomata'
- 'Eridotrypa belongs to Batostomellidae'
- 'Eridotrypa aedilis belongs to Eridotrypa' according to Eichwald 1855
- 'Eridotrypa aedilis minor belongs to Eridotrypa aedilis' according to Ulrich 1893
- 'Eridotrypa exigua belongs to Eridotrypa' according to Ulrich 1893
- 'Eridotrypa mutabilis belongs to Eridotrypa' according to Ulrich 1893
- 'Escharipora recta belongs to Escharipora' according to Eichwald 1860
- 'Escharopora belongs to Ptilodictyonidae'
- 'Escharopora recta belongs to Escharopora' according to Hall 1847
- 'Escharopora subrecta belongs to Escharopora' according to Ulrich 1886
- 'Esthoniopora communis belongs to Esthoniopora'
- 'Esthoniopora curvata belongs to Esthoniopora'
- 'Favositella belongs to Ceramoporidae'
- 'Favositella discoidalis belongs to Favositella'
- 'Favositella exserta belongs to Favositella'
- 'Favositella interpuncta belongs to Favositella' according to Quenstedt 1881
- 'Favositella punctata belongs to Favositella'
- 'Fenestella belongs to Fenestellidae'
- 'Fenestella striolata belongs to Fenestella' according to Eichwald 1860
- 'Fenestellidae belongs to Cryptostomata'
- 'Fistulipora belongs to Fistuliporidae'
- 'Fistulipora minor belongs to Fistulipora' according to McCoy 1850
- 'Fistulipora primaeva belongs to Fistulipora'
- 'Fistuliporidae belongs to Cyclostomata'
- 'Flustra lanceolata is recombined as Ptilodictya lanceolata'
- 'Glauconome belongs to Arthrostylidae'
- 'Glauconome plumula belongs to Glauconome' according to Wiman 1902
- 'Graptodictya belongs to Ptilodictyonidae'
- 'Graptodictya bonnemai belongs to Graptodictya'
- 'Graptodictya obliqua belongs to Graptodictya'
- 'Graptodictya proava belongs to Graptodictya' according to Eichwald 1860
- 'Hallopora dumalis belongs to Hallopora' according to Ulrich 1893
- 'Hallopora dybowskii belongs to Hallopora'
- 'Hallopora goodhuensis belongs to Hallopora' according to Ulrich 1893
- 'Hallopora multitabulata belongs to Hallopora' according to Ulrich 1886
- 'Hallopora splendens belongs to Hallopora'
- 'Hallopora tenuispinosa belongs to Hallopora'
- 'Hallopora tolli belongs to Hallopora'
- 'Hallopora undulata belongs to Hallopora' according to Ulrich 1886
- 'Hallopora wesenbergiana belongs to Hallopora' according to Dybowski 1877
- 'Helopora belongs to Arthrostylidae'
- 'Helopora divaricata belongs to Helopora' according to Ulrich 1893
- 'Helopora fragilis belongs to Helopora' according to Hall 1851
- 'Helopora lineata is recombined as Nematopora lineata' according to Billings 1866
- 'Helopora lineata is recombined as Nematopora lineata'
- 'Helopora strigosa is recombined as Glauconome strigosa' according to Billings 1886
- 'Helopora strigosa is recombined as Glauconome strigosa'
- 'Hemiphragma belongs to Trematoporidae'
- 'Hemiphragma batheri belongs to Hemiphragma'
- 'Hemiphragma glabrum belongs to Hemiphragma'
- 'Hemiphragma maculatum belongs to Hemiphragma'
- 'Hemiphragma panderi belongs to Hemiphragma' according to Dybowski 1877
- 'Hemiphragma pygmaeum belongs to Hemiphragma'
- 'Hemiphragma rotundatum belongs to Hemiphragma'
- 'Hemiphragma subsphericum belongs to Hemiphragma'
- 'Hemiphragma tenuimurale belongs to Hemiphragma' according to Ulrich 1893
- 'Heteronema belongs to Vinellidae'
- 'Heteronema capillare belongs to Heteronema' according to Ulrich and Bassler 1904
- 'Heterotrypidae belongs to Trepostomata'
- 'Hippothoa delicatula is recombined as Corynotrypa delicatula' according to James 1878
- 'Hippothoa delicatula is recombined as Corynotrypa delicatula'
- 'Hippothoa inflata is recombined as Corynotrypa inflata' according to Hall 1847
- 'Hippothoa inflata is recombined as Corynotrypa inflata'
- 'Homotrypa belongs to Monticuliporidae'
- 'Homotrypa curvata belongs to Homotrypa' according to Ulrich 1882
- 'Homotrypa similis belongs to Homotrypa' according to Foord 1883
- 'Homotrypa subramosa belongs to Homotrypa' according to Ulrich 1886
- 'Homotrypella belongs to Monticuliporidae'
- 'Homotrypella cribrosa belongs to Homotrypella'
- 'Homotrypella instabilis belongs to Homotrypella' according to Ulrich 1886
- 'Idmoneidae belongs to Cyclostomata'
- 'Intricaria reticulata is recombined as Chasmatopora reticulata'
- 'Leioclema is corrected as Lioclema and belongs to Batostomellidae'
- 'Leptotrypa belongs to Heterotrypidae'
- 'Leptotrypa hexagonalis belongs to Leptotrypa' according to Ulrich 1890
- 'Leptotrypa minima belongs to Leptotrypa' according to Ulrich 1883
- 'Lichenalia belongs to Rhinoporidae'
- 'Lichenalia concentrica belongs to Lichenalia' according to Hall 1852
- 'Lioclema spineum belongs to Lioclema'
- 'Lioclema vetustum belongs to Lioclema'
- 'Lioclemella belongs to Batostomellidae'
- 'Mesotrypa belongs to Monticuliporidae'
- 'Mesotrypa discoidea belongs to Mesotrypa' according to Ulrich 1893
- 'Mesotrypa discoidea orientalis belongs to Mesotrypa discoidea'
- 'Mesotrypa egena belongs to Mesotrypa'
- 'Mesotrypa expressa belongs to Mesotrypa'
- 'Mesotrypa milleporacea belongs to Mesotrypa'
- 'Mesotrypa milleporacea parva belongs to Mesotrypa milleporacea'
- 'Micropora rhombica belongs to Micropora' according to Eichwald 1847
- 'Mitoclema belongs to Entalophoridae'
- 'Mitoclema boreale belongs to Mitoclema'
- 'Mitoclema cinctosum belongs to Mitoclema' according to Ulrich 1882
- 'Mitoclema mundulum belongs to Mitoclema' according to Ulrich 1890
- 'Monotrypa belongs to Trematoporidae'
- 'Monotrypa jewensis belongs to Monotrypa'
- 'Monticulipora belongs to Monticuliporidae'
- 'Monticulipora arborea belongs to Monticulipora' according to Ulrich 1893
- 'Monticulipora arborea bispinulata belongs to Monticulipora arborea'
- 'Monticulipora dagoensis belongs to Monticulipora'
- 'Monticulipora mammulata belongs to Monticulipora' according to Dorbigny 1850
- 'Monticulipora ovulum belongs to Monticulipora' according to Eichwald 1860
- 'Monticuliporidae belongs to Trepostomata'
- 'Myriolithes fastigiatus belongs to Myriolithes' according to Eichwald 1825
- 'Nematopora belongs to Arthrostylidae'
- 'Nematopora consueta belongs to Nematopora'
- 'Nematopora fragilis belongs to Nematopora' according to Ulrich 1890
- 'Nematopora ovalis belongs to Nematopora' according to Ulrich 1888
- 'Nematotrypa belongs to Rhabdomesontidae'
- 'Nematotrypa gracilis belongs to Nematotrypa'
- 'Nicholsonella belongs to Constellariidae'
- 'Nicholsonella ponderosa belongs to Nicholsonella' according to Ulrich 1890
- 'Orbignyella belongs to Monticuliporidae'
- 'Orbignyella expansa belongs to Orbignyella' according to Bassler 1906
- 'Orbignyella expansa baltica belongs to Orbignyella expansa'
- 'Orbignyella germana belongs to Orbignyella'
- 'Orbignyella sublamellosa belongs to Orbignyella' according to Ulrich and Bassler 1904
- 'Orbipora belongs to Batostomellidae'
- 'Orbipora acanthophora belongs to Orbipora'
- 'Orbipora fungiformis belongs to Orbipora' according to Eichwald 1860
- 'Orbipora indenta belongs to Orbipora'
- 'Orbipora solida belongs to Orbipora'
- 'Orbitulites distinctus is recombined as Orbipora distincta' according to Eichwald 1856
- 'Pachydictya belongs to Rhinidictyonidae'
- 'Pachydictya bifurcata belongs to Pachydictya' according to Hall 1883
- 'Pachydictya cyclostomoides belongs to Pachydictya' according to Eichwald 1855
- 'Pachydictya elegans belongs to Pachydictya' according to Ulrich 1893
- 'Pachydictya flabellum belongs to Pachydictya' according to Leuchtenberg 1860
- 'Pachydictya robusta belongs to Pachydictya' according to Ulrich 1882
- 'Petalotrypa belongs to Amplexoporidae'
- 'Petalotrypa compressa belongs to Petalotrypa' according to Ulrich 1890
- 'Petalotrypa folium belongs to Petalotrypa'
- 'Phaenopora belongs to Ptilodictyonidae'
- 'Phaenopora ensiformis belongs to Phaenopora' according to Hall 1852
- 'Phaenopora explanata belongs to Phaenopora' according to Hall 1851
- 'Phyllodictya belongs to Rhinidictyonidae'
- 'Phyllodictya flabellaris belongs to Phyllodictya'
- 'Phyllodictya frondosa belongs to Phyllodictya' according to Ulrich 1882
- 'Phyllodictya varia belongs to Phyllodictya' according to Ulrich 1893
- 'Phylloporinidae belongs to Cryptostomata'
- 'Polypora furcata is recombined as Chasmatopora furcata' according to Eichwald 1854
- 'Polypora furcata is recombined as Chasmatopora furcata'
- 'Protocrisina belongs to Idmoneidae'
- 'Protocrisina exigua belongs to Protocrisina' according to Ulrich 1890
- 'Protocrisina ulrichi belongs to Protocrisina'
- 'Pseudohornera belongs to Phylloporinidae'
- 'Pseudohornera bifida belongs to Pseudohornera' according to Eichwald 1860
- 'Pseudohornera orosa belongs to Pseudohornera' according to Wiman 1902
- 'Pteropora exilis belongs to Pteropora' according to Eichwald 1860
- 'Pteropora pennula belongs to Pteropora' according to Eichwald 1860
- 'Ptilodictya belongs to Ptilodictyonidae'
- 'Ptilodictya flabellata belongs to Ptilodictya' according to Eichwald 1860
- 'Ptilodictya gladiola belongs to Ptilodictya' according to Billings 1866
- 'Ptilodictya perelegans is recombined as Graptodictya perelegans' according to Ulrich 1882
- 'Ptilodictyonidae belongs to Cryptostomata'
- 'Ptilopora disticha belongs to Ptilopora' according to Goldfuss 1827
- 'Retepora tenella is recombined as Chasmatopora tenella' according to Eichwald 1842
- 'Retepora tenella is recombined as Chasmatopora tenella'
- 'Rhabdomesontidae belongs to Cryptostomata'
- 'Rhinidictya exserta belongs to Rhinidictya' according to Eichwald 1847
- 'Rhinidictya mutabilis belongs to Rhinidictya' according to Ulrich 1882
- 'Rhinidictya nicholsoni belongs to Rhinidictya' according to Ulrich 1882
- 'Rhinidictyonidae belongs to Cryptostomata'
- 'Rhinoporidae belongs to Cryptostomata'
- 'Rhombopora belongs to Rhabdomesontidae'
- 'Rhombopora esthoniae belongs to Rhombopora'
- 'Scenellopora belongs to Ceramoporidae'
- 'Scenellopora radiata belongs to Scenellopora' according to Ulrich 1882
- 'Sceptropora belongs to Arthrostylidae'
- 'Sceptropora francisca belongs to Sceptropora'
- 'Spatiopora belongs to Ceramoporidae'
- 'Spatiopora aspera belongs to Spatiopora' according to Ulrich 1882
- 'Spatiopora lineata belongs to Spatiopora' according to Ulrich 1882
- 'Spatiopora lineata incepta belongs to Spatiopora lineata' according to Ulrich 1882
- 'Stellipora belongs to Constellariidae'
- 'Stellipora absendesoides belongs to Stellipora'
- 'Stellipora antheloidea belongs to Stellipora' according to Hall 1847
- 'Stellipora constellata belongs to Stellipora' according to Dybowski 1877
- 'Stellipora revalensis belongs to Stellipora' according to Dybowski 1877
- 'Stictopora scalpelliformis belongs to Stictopora' according to Eichwald 1860
- 'Stictoporella belongs to Stictoporellidae'
- 'Stictoporella cribrosa belongs to Stictoporella' according to Ulrich 1886
- 'Stictoporella gracilis belongs to Stictoporella' according to Eichwald 1840
- 'Stictoporella interstincta belongs to Stictoporella' according to Ulrich 1882
- 'Stictoporellidae belongs to Cryptostomata'
- 'Stigmatella belongs to Heterotrypidae'
- 'Stigmatella claviformis belongs to Stigmatella' according to Ulrich 1893
- 'Stigmatella crenulata belongs to Stigmatella' according to Ulrich and Bassler 1906
- 'Stigmatella foordii belongs to Stigmatella' according to Nicholson 1889
- 'Stigmatella inflecta belongs to Stigmatella'
- 'Stigmatella massalis belongs to Stigmatella'
- 'Stomatopora belongs to Diastoporidae'
- 'Stomatopora dissimilis is recombined as Corynotrypa dissimilis' according to Vine 1881
- 'Stomatopora dissimilis is recombined as Corynotrypa dissimilis'
- 'Trematopora belongs to Trematoporidae'
- 'Trematopora cystata belongs to Trematopora'
- 'Trematopora kuckersiana belongs to Trematopora'
- 'Trematopora primigenia belongs to Trematopora' according to Ulrich 1886
- 'Trematoporidae belongs to Trepostomata'
- 'Vincularia megastoma belongs to Vincularia' according to Eichwald 1860
- 'Vinella belongs to Vinellidae'
- 'Vinella repens belongs to Vinella' according to Ulrich 1890
- 'Vinellidae belongs to Ctenostomata'