Opinions from S. A. Northrop 1939

  • 'Amphilichas anticostiensis belongs to Amphilichas'
  • 'Amphistrophia extensa belongs to Amphistrophia'
  • 'Anomia pecten is recombined as Schuchertella pecten'
  • 'Barrandella kindlei belongs to Barrandella'
  • 'Bellerophon dilatatus is recombined as Salpingostoma dilatatum'
  • 'Bellerophon ornatus belongs to Bellerophon'
  • 'Bronteus ekwanaspis is recombined as Goldius ekwanensis'
  • 'Clathrodictyon crickmayi belongs to Clathrodictyon'
  • 'Ctenodonta subcircularis belongs to Ctenodonta' according to Prouty 1923
  • 'Cyathophyllum eriphyle belongs to Cyathophyllum' according to Billings 1862
  • 'Cyathophyllum eriphyle is recombined as Omphyma eriphyle'
  • 'Cyclolites rotuloides is recombined as Palaeocyclus rotuloides'
  • 'Cyrtolites clemvillensis belongs to Cyrtolites'
  • 'Cyrtolites insculptus belongs to Cyrtolites'
  • 'Cyrtolites pharetra belongs to Cyrtolites'
  • 'Euomphalopterus gasconsensis belongs to Euomphalopterus'
  • 'Euomphalus discors is recombined as Poleumita discors'
  • 'Euomphalus macrolineatus is recombined as Poleumita macrolineata'
  • 'Helictes aequilaterus is recombined as Euomphalopterus aequilaterus'
  • 'Holopea niagarensis belongs to Holopea'
  • 'Idioglyptus belongs to Stropheodontinae'
  • 'Idioglyptus stigmatus belongs to Idioglyptus'
  • 'Leptaena profunda belongs to Leptaena' according to Hall 1852
  • 'Leptaena profunda is recombined as Protomegastrophia profunda'
  • 'Liljevallia vieillensis belongs to Liljevallia'
  • 'Liospira marklandensis belongs to Liospira'
  • 'Loxonema subulata is recombined as Hormotoma subulata'
  • 'Omphyma belongs to Rugosa'
  • 'Orthis flabellites belongs to Orthis' according to Foerste 1889
  • 'Pentamerus knightii is recombined as Conchidium knighti'
  • 'Phacops trisulcata is recombined as Phacopidella trisulcata' according to Ulrich and Bassler 1923
  • 'Planitrochus dominus is recombined as Prosolarium dominus'
  • 'Platyceras subumbonatum belongs to Platyceras'
  • 'Platyostoma niagarensis is recombined as Diaphorostoma niagarense'
  • 'Pleurotomaria axion belongs to Pleurotomaria'
  • 'Pleurotomaria cirrhosa is recombined as Prosolarium cirrhosum'
  • 'Pleurotomaria elora is recombined as Euomphalopterus elora'
  • 'Pleurotomaria halei is recombined as Euomphalopterus halei'
  • 'Pleurotomaria putillus belongs to Pleurotomaria'
  • 'Pleurotomaria subundata belongs to Pleurotomaria'
  • 'Pleurotomaria valeria is recombined as Euomphalopterus valeria'
  • 'Poleumita chaleurensis belongs to Poleumita'
  • 'Proetus turgidus belongs to Proetus'
  • 'Prosolarium platybasis belongs to Prosolarium'
  • 'Prosolarium scalatum belongs to Prosolarium'
  • 'Pterinea mclearni belongs to Pterinea'
  • 'Rhynchonella fringilla is recombined as Camarotoechia fringilla'
  • 'Salpingostoma inornatum belongs to Salpingostoma'
  • 'Salpingostoma orientalis belongs to Salpingostoma'
  • 'Seelya moydartensis belongs to Seelya'
  • 'Straparollus crenulatus is recombined as Poleumita crenulata'
  • 'Stricklandia gaspeensis belongs to Stricklandia'
  • 'Stromatoporella chouinardensis belongs to Stromatoporella'
  • 'Stromatoporella crassa belongs to Stromatoporella'
  • 'Stromatoporella prima belongs to Stromatoporella'
  • 'Strombodes approximatus belongs to Strombodes' according to Parks 1933
  • 'Strombodes approximatus is recombined as Arachnophyllum approximatum'
  • 'Syringopora bifurcata belongs to Syringopora'
  • 'Syringopora compacta belongs to Syringopora'
  • 'Syringopora reteformis [misspelled as Syringopora retiformis] belongs to Syringopora'
  • 'Tremanotus longitudinalis belongs to Tremanotus'
  • 'Tremanotus minutus belongs to Tremanotus'
  • 'Turbinites alatus is recombined as Euomphalopterus alatus'