Opinions from B. S. Kues and R. L. Batten 2001
- 'Aclis robusta is recombined as Donaldina robusta'
- 'Amaurotoma belongs to Trochonematidae'
- 'Ambozone belongs to Ambozoniinae'
- 'Ambozoniinae belongs to Eotomariidae'
- 'Anomphalus blancus belongs to Anomphalus'
- 'Arribazona hesperita belongs to Arribazona'
- 'Auriptygma simplex is recombined as Leptoptygma simplex'
- 'Auriptygma subtilistriatum is recombined as Leptoptygma subtilistriatum'
- 'Auriptygma virgatum is recombined as Leptoptygma virgatum'
- 'Baylea kuesi belongs to Baylea'
- 'Bellerophon (Pharkidonotus) westi is recombined as Pharkidonotus westi'
- 'Bellerophon blaneyanus is recombined as Euphemites blaneyanus'
- 'Bellerophon crassus is recombined as Bellerophon (Bellerophon) crassus'
- 'Bellerophon crassus wewokanus is recombined as Bellerophon wewokanus'
- 'Bellerophon graphicus belongs to Bellerophon'
- 'Bellerophon incomptus is recombined as Bellerophon (Bellerophon) incomptus'
- 'Bellerophon montfortianum is recombined as Cymatospira montfortianus'
- 'Bellerophon nodocarinatus is recombined as Euphemites nodocarinatus'
- 'Bellerophon percarinatus is recombined as Pharkidonotus percarinatus'
- 'Bellerophon tenuilineata is recombined as Retispira tenuilineata'
- 'Bellerophon tricarinatus is recombined as Pharkidonotus tricarinatus'
- 'Bellerophon vittatus is recombined as Euphemites vittatus'
- 'Bembexia ellenae is recombined as Glabrocingulum (Glabrocingulum) ellenae'
- 'Bicuerda belongs to Acanthonematidae'
- 'Bicuerda procolumnare belongs to Bicuerda'
- 'Callispira belongs to Acanthonematinae'
- 'Callispira quinquecostata belongs to Callispira'
- 'Capulus parva is recombined as Platyceras (Orthonychia) parva'
- 'Ceraunocochlis fulminula belongs to Ceraunocochlis'
- 'Cyclites diminutus belongs to Cyclites'
- 'Cyclozyga mirabilis belongs to Cyclozyga'
- 'Cyrtolites gillianus is recombined as Ambozone gilliana'
- 'Eucochlis perminuta belongs to Eucochlis'
- 'Euconodoma was reranked as Microdoma (Euconodoma) and belongs to Microdoma'
- 'Euconodoma gavinae is recombined as Microdoma (Euconodoma) gavinae'
- 'Euconospira hermosana belongs to Euconospira'
- 'Eulima peracuta is recombined as Meekospira peracuta'
- 'Euphemites enodis belongs to Euphemites'
- 'Euphemites hermosus belongs to Euphemites'
- 'Euphemites kingi belongs to Euphemites'
- 'Euphemites multiliratus belongs to Euphemites'
- 'Euphemites richardsoni belongs to Euphemites'
- 'Gamizyga (Gamizyga) attenuata is recombined as Hemizyga (Hemizyga) attenuata'
- 'Gamizyga (Hyphantozyga) fenestrata belongs to Gamizyga (Hyphantozyga)'
- 'Gamizyga (Hyphantozyga) knighti belongs to Gamizyga (Hyphantozyga)'
- 'Gamizyga (Plocezyga) delicata belongs to Gamizyga (Plocezyga)'
- 'Glabrocingulum (Ananias) talpaensis belongs to Glabrocingulum (Ananias)'
- 'Glabrocingulum (Glabrocingulum) globosum belongs to Glabrocingulum (Glabrocingulum)'
- 'Glabrocingulum coronatum is recombined as Glabrocingulum (Glabrocingulum) coronatum'
- 'Glyptotomaria belongs to Phymatopleuridae'
- 'Goniospira helicaformis is recombined as Goniasma helicaformis'
- 'Helictostylus girtyi is recombined as Strophostylus girtyi'
- 'Hemizyga (Hemizyga) illineata belongs to Hemizyga (Hemizyga)'
- 'Hemizyga (Hemizyga) inflata belongs to Hemizyga (Hemizyga)'
- 'Hemizyga (Hemizyga) larga belongs to Hemizyga (Hemizyga)'
- 'Hemizyga (Hyphantozyga) gracilis belongs to Hemizyga (Hyphantozyga)'
- 'Hemizyga (Plocezyga) corona belongs to Hemizyga (Plocezyga)'
- 'Hemizyga (Plocezyga) percostata belongs to Hemizyga (Plocezyga)'
- 'Hemizyga (Plocezyga) tenuilirata belongs to Hemizyga (Plocezyga)'
- 'Hemizyga dubia is recombined as Hemizyga (Hemizyga) dubia'
- 'Hemizyga elegans is recombined as Hemizyga (Hemizyga) elegans'
- 'Hemizyga grandicostata is recombined as Hemizyga (Hemizyga) grandicostata'
- 'Hermosanema varium belongs to Hermosanema'
- 'Inachus catilloides is recombined as Amphiscapha catilloides'
- 'Loxonema attenuata semicostata is recombined as Pseudozygopleura semicostata'
- 'Loxonema cerithiformis is recombined as Microptychis cerithiformis'
- 'Loxonema minuta is recombined as Girtyspira minuta'
- 'Loxonema multicostata is recombined as Pseudozygopleura multicostata'
- 'Loxonema regularis is recombined as Strobeus regularis'
- 'Loxonema scitula is recombined as Pseudozygopleura (Pseudozygopleura) scitula'
- 'Luciellina ocultabanda is corrected as Luciellina occultabanda and belongs to Luciellina'
- 'Macrocheilus paludinaeformis is recombined as Strobeus paludinaeformis'
- 'Meekospira bambooformis belongs to Meekospira'
- 'Meekospira delgada belongs to Meekospira'
- 'Meekospira mississippiensis belongs to Meekospira'
- 'Meekospira peracuta choctawensis is recombined as Meekospira choctawensis'
- 'Microptychis turbineus belongs to Microptychis'
- 'Murchisonia copei is recombined as Taosia copei'
- 'Murchisonia geminocarinata is recombined as Stegocoelia (Donaldospira) geminocarinata'
- 'Murchisonia lasallensis is recombined as Goniasma lasallensis'
- 'Murchisonia missouriensis is recombined as Taosia missouriensis'
- 'Murchisonia nebrascensis is recombined as Orthonema nebrascense'
- 'Murchisonia subtaeniata is recombined as Orthonema subtaeniatum'
- 'Natica altonensis is a subjective synonym of Naticopsis ventricosa'
- 'Natica ventrica is recombined as Jedria ventrica'
- 'Naticopsis meeki is recombined as Naticopsis (Jedria) meeki'
- 'Naticopsis nodosus is recombined as Trachydomia nodosa'
- 'Naticopsis scintilla belongs to Naticopsis'
- 'Orestes nodosus is recombined as Phymatopleura nodosa'
- 'Orestes quadrilineata is recombined as Glyptotomaria (Dictyotomaria) quadrilineata'
- 'Orthonema amissidecoris belongs to Orthonema'
- 'Orthonema ascensus belongs to Orthonema'
- 'Orthonema columnare is recombined as Bicuerda columnare'
- 'Orthonema conica is corrected as Orthonema conicum and belongs to Orthonema'
- 'Orthonema inornatum belongs to Orthonema'
- 'Orthonema semiornatum belongs to Orthonema'
- 'Orthonema strigatum belongs to Orthonema'
- 'Orthonema telescopiforme belongs to Orthonema'
- 'Paragoniozona nodolirata belongs to Paragoniozona'
- 'Phanerotrema wannense is recombined as Glabrocingulum (Glabrocingulum) wannense'
- 'Platyzona hespera is corrected as Platyzona herspera and belongs to Platyzona'
- 'Pleurotomaria beckwithana is recombined as Shansiella beckwithana'
- 'Pleurotomaria broadheadi is recombined as Shansiella broadheadi'
- 'Pleurotomaria carbonaria is recombined as Shansiella carbonaria'
- 'Pleurotomaria conoides is recombined as Spiroscala conoides'
- 'Pleurotomaria giffordi is recombined as Baylea giffordi'
- 'Pleurotomaria grayvillensis is recombined as Glabrocingulum (Glabrocingulum) grayvillense'
- 'Pleurotomaria humerosa is recombined as Amaurotoma humerosa'
- 'Pleurotomaria illinoiensis is recombined as Trepospira illinoisensis'
- 'Worthenia perizomata is a subjective synonym of Worthenia speciosa'
- 'Pleurotomaria planicostata is recombined as Shansiella planicostata'
- 'Pleurotomaria rockymontana is recombined as Spiroscala rockymontana'
- 'Pleurotomaria scitula is recombined as Glyptotomaria (Dictyotomaria) scitula'
- 'Pleurotomaria speciosa is recombined as Worthenia speciosa'
- 'Pleurotomaria spironema is recombined as Gosseletina spironema'
- 'Pleurotomaria subconstricta is recombined as Baylea subconstricta'
- 'Pleurotomaria turbiniformis is recombined as Euconospira turbiniformis'
- 'Pseudozygopleura (Pseudozygopleura) angustata is recombined as Pseudozygopleura angusta'
- 'Pseudozygopleura (Pseudozygopleura) girtyi is recombined as Pseudozygopleura girtyi'
- 'Pseudozygopleura (Pseudozygopleura) gradatus is recombined as Pseudozygopleura gradata'
- 'Pseudozygopleura (Pseudozygopleura) inornata is a subjective synonym of Pseudozygopleura semicostata'
- 'Pseudozygopleura (Pseudozygopleura) kellettae is recombined as Pseudozygopleura kellettae'
- 'Pseudozygopleura (Pseudozygopleura) pandus is recombined as Pseudozygopleura panda'
- 'Pseudozygopleura (Pseudozygopleura) plummeri is recombined as Pseudozygopleura plummeri'
- 'Pseudozygopleura (Pseudozygopleura) pupa is recombined as Pseudozygopleura pupa'
- 'Pseudozygopleura (Pseudozygopleura) restis belongs to Pseudozygopleura (Pseudozygopleura)'
- 'Pseudozygopleura (Pseudozygopleura) trochus is recombined as Microptychis trochus'
- 'Pseudozygopleura (Pseudozygopleura) variegata is recombined as Pseudozygopleura variegata'
- 'Pseudozygopleura (Pseudozygopleura) williamsi is recombined as Microptychis williamsi'
- 'Pseudozygopleura (Pyrgozyga) macra is recombined as Pseudozygopleura macra'
- 'Pseudozygopleura (Stephanozyga) granda belongs to Pseudozygopleura (Stephanozyga)'
- 'Pseudozygopleura (Stephanozyga) lisaspira belongs to Pseudozygopleura (Stephanozyga)'
- 'Pseudozygopleura (Stephanozyga) subnodosa belongs to Pseudozygopleura (Stephanozyga)'
- 'Pseudozygopleura granda is recombined as Pseudozygopleura (Pseudozygopleura) granda'
- 'Rotella verruculiferus is recombined as Anomphalus verruculiferus'
- 'Soleniscus (Cylindritopsis) vaningeni is recombined as Cylindritopsis vaningeni'
- 'Soleniscus (Macrochilina) welleri is recombined as Strobeus welleri'
- 'Soleniscus brevis is recombined as Strobeus brevis'
- 'Soleniscus typicus belongs to Soleniscus'
- 'Spiroscala decorata belongs to Spiroscala'
- 'Spiroscala georgiannae belongs to Spiroscala'
- 'Spiroscala pagoda belongs to Spiroscala'
- 'Stegocoelia (Donaldospira) taosensis belongs to Stegocoelia (Donaldospira)'
- 'Stegocoelia (Hypergonia) agraciada belongs to Stegocoelia (Hypergonia)'
- 'Stegocoelia (Hypergonia) hoffmani belongs to Stegocoelia (Hypergonia)'
- 'Stegocoelia agraciada belongs to Stegocoelia'
- 'Stegocoelia hoffmani belongs to Stegocoelia'
- 'Stegocoelia wortheni is recombined as Stegocoelia (Taosia) wortheni'
- 'Stephanozyga lisaspira belongs to Stephanozyga'
- 'Straparollus (Euomphalus) plummeri is recombined as Euomphalus plummeri'
- 'Straparollus (Euomphalus) reedsi is recombined as Amphiscapha reedsi'
- 'Straparollus (Euomphalus) serratus is recombined as Euomphalus serratus'
- 'Streptacis whitfieldi belongs to Streptacis'
- 'Strobeus immanis belongs to Strobeus'
- 'Strobeus poromus belongs to Strobeus'
- 'Stylifer primogenia is recombined as Strobeus primigenius'
- 'Taosia percostata is recombined as Stegocoelia (Hypergonia) percostata'
- 'Trachydomia oweni belongs to Trachydomia'
- 'Trachydomia raymondi belongs to Trachydomia'
- 'Trachydomia turbonitella belongs to Trachydomia'
- 'Turbo tabulatus is recombined as Worthenia tabulata'
- 'Turritella stevensana is recombined as Donaldina stevensana'
- 'Warthia kingi belongs to Warthia'
- 'Worthenia belongs to Lophospiridae'
- 'Worthenia beedei is recombined as Glabrocingulum (Glabrocingulum) beedi'
- 'Worthenia legrandi belongs to Worthenia'
- 'Worthenia parvula belongs to Worthenia'
- 'Yvania inclinata is recombined as Baylea inclinata'