Opinions from M. R. Mudge et al. 1962
- 'Allorisma subcuneata is a subjective synonym of Allorisma terminale'
- 'Ambocoelia expansa is recombined as Crurithyris expansa'
- 'Bellerophon tenuilineata is recombined as Knightites (Retispira) tenuilineata'
- 'Chonetes geinitzianus is recombined as Lissochonetes geinitzianus'
- 'Chonetes granulifer belongs to Chonetes'
- 'Crania modesta is recombined as Petrocrania modesta'
- 'Derbyia cymbula belongs to Derbyia' according to Hall and Clarke 1893
- 'Derbyia cymbula belongs to Derbyia'
- 'Derbyia hooserensis belongs to Derbyia' according to Dunbar and Condra 1932
- 'Derbyia hooserensis belongs to Derbyia'
- 'Derbyia wabaunseensis belongs to Derbyia' according to Dunbar and Condra 1932
- 'Derbyia wabaunseensis belongs to Derbyia'
- 'Dictyoclostus americanus is a subjective synonym of Dictyoclostus huecoensis'
- 'Discina missouriensis is recombined as Orbiculoidea missouriensis'
- 'Echinoconchus moorei belongs to Echinoconchus'
- 'Leda subscitula is recombined as Yoldia subscitula'
- 'Leptalosia ovalis belongs to Leptalosia' according to Dunbar and Condra 1932
- 'Leptalosia ovalis belongs to Leptalosia'
- 'Lingula carbonaria belongs to Lingula'
- 'Linoproductus magnispinus belongs to Linoproductus' according to Dunbar and Condra 1932
- 'Lissochonetes geronticus belongs to Lissochonetes' according to Dunbar and Condra 1932
- 'Lissochonetes geronticus belongs to Lissochonetes'
- 'Marginifera hystricula belongs to Marginifera' according to Dunbar and Condra 1932
- 'Marginifera hystricula [misspelled as Marginifera histricula] belongs to Marginifera'
- 'Naticopsis subovata belongs to Naticopsis'
- 'Neospirifer dunbari belongs to Neospirifer' according to King 1933
- 'Neospirifer dunbari belongs to Neospirifer'
- 'Orthis carbonaria is recombined as Rhipidomella carbonaria'
- 'Orthisina crassa is recombined as Derbyia crassa'
- 'Pleurotomaria brazoensis is recombined as Phymatopleura brazoensis'
- 'Plicatula striatocostata is recombined as Meekella striatocostata'
- 'Productus boonensis belongs to Productus' according to Swallow 1858
- 'Productus boonensis is recombined as Cancrinella boonensis'
- 'Productus huecoensis is recombined as Dictyoclostus huecoensis'
- 'Productus lasallensis is recombined as Marginifera lasallensis'
- 'Productus nebrascensis is recombined as Juresania nebrascensis'
- 'Productus prattenianus is recombined as Linoproductus prattenianus'
- 'Productus wabashensis belongs to Productus' according to Norwood and Pratten 1855
- 'Productus wabashensis is recombined as Marginifera wabashensis'
- 'Rhynchonella (Camerophoria) osagensis is recombined as Wellerella osagensis'
- 'Spirifer hemiplicata is recombined as Enteletes hemiplicatus'
- 'Spirifer kansasensis belongs to Spirifer' according to Swallow 1866
- 'Spirifer kansasensis is recombined as Neospirifer kansasensis'
- 'Spirifer kentuckensis is recombined as Punctospirifer kentuckensis'
- 'Straparollus (Euomphalus) muricatus is recombined as Amphiscapha muricata'
- 'Terebratula bovidens is recombined as Dielasma bovidens'
- 'Terebratula mormonii is recombined as Hustedia mormoni'
- 'Terebratula subtilita is recombined as Composita subtilita'
- 'Wellerella delicatula belongs to Wellerella' according to Dunbar and Condra 1932
- 'Wellerella delicatula belongs to Wellerella'
- 'Wellerella truncata belongs to Wellerella' according to Dunbar and Condra 1932
- 'Wellerella truncata belongs to Wellerella'