Opinions from C. H. Crickmay 1933
- 'Argyrotheca retrorsa belongs to Argyrotheca'
- 'Capillirhynchia gallatinensis belongs to Capillirhynchia'
- 'Discina pileolus belongs to Discina' according to Whiteaves 1889
- 'Discina pileolus is recombined as Orbiculoidea pileolus'
- 'Discina semipolita is recombined as Orbiculoidea semipolita'
- 'Discina semipolita belongs to Discina' according to Whiteaves 1884
- 'Euidothyris francescalaurae belongs to Euidothyris' according to Stauffer 1930
- 'Euidothyris francescalaurae belongs to Euidothyris'
- 'Euidothyris lucerna belongs to Euidothyris'
- 'Flabellirhynchia concinna belongs to Flabellirhynchia'
- 'Flabellirhynchia falconis belongs to Flabellirhynchia'
- 'Globirhynchia oblatopinguis belongs to Globirhynchia'
- 'Globirhynchia rhacta belongs to Globirhynchia'
- 'Globirhynchia schucherti belongs to Globirhynchia'
- 'Gnathorhynchia perplicata belongs to Gnathorhynchia'
- 'Homoeorhynchia moorei belongs to Homoeorhynchia' according to Warren 1932
- 'Homoeorhynchia webbi belongs to Homoeorhynchia' according to Warren 1932
- 'Kallirhynchia phylarchus belongs to Kallirhynchia'
- 'Kallirhynchia valliculae belongs to Kallirhynchia'
- 'Loboidothyris meeki belongs to Loboidothyris'
- 'Loboidothyris mormonensis belongs to Loboidothyris'
- 'Ornithella curticensis belongs to Ornithella'
- 'Ornithella gemina belongs to Ornithella'
- 'Ornithella syringothyrides belongs to Ornithella'
- 'Ptilorhynchia belongs to Discinidae'
- 'Ptyctothyris hardgravensis belongs to Ptyctothyris'
- 'Ptyctothyris phlegethontis belongs to Ptyctothyris'
- 'Rhactorhynchia albertensis belongs to Rhactorhynchia' according to Warren 1932
- 'Rhactorhynchia trigona belongs to Rhactorhynchia'
- 'Rhynchonella gnathophora is recombined as Globirhynchia gnathophora'
- 'Rhynchonella maudensis belongs to Rhynchonella' according to Whiteaves 1884
- 'Rhynchonella maudensis belongs to Rhynchonella'
- 'Rhynchonella myrina belongs to Rhynchonella' according to Hall and Whitfield 1877
- 'Rhynchonella myrina is recombined as Kallirhynchia myrina'
- 'Rhynchonella obesula belongs to Rhynchonella' according to Whiteaves 1876
- 'Rhynchonella obesula belongs to Rhynchonella'
- 'Rhynchonella orthidioides belongs to Rhynchonella' according to Whiteaves 1876
- 'Rhynchonella orthidioides is recombined as Kallirhynchia orthidioides'
- 'Rhynchonella whiteavesi belongs to Rhynchonella' according to Warren 1932
- 'Rhynchonella whiteavesi is recombined as Kallirhynchia whiteavesi'
- 'Terebratula robusta belongs to Terebratula' according to Whiteaves 1889
- 'Terebratula robusta is recombined as Loboidothyris robusta'
- 'Terebratula skidegatensis belongs to Terebratula' according to Whiteaves 1876
- 'Terebratula skidegatensis is recombined as Ornithella skidegatensis'
- 'Terebratulina indomita belongs to Terebratulina'