Opinions from A. W. Grabau and H. W. Shimer 1909

  • 'Acroculia erectum is recombined as Platyceras erectum'
  • 'Archinacella simulatrix belongs to Archinacella'
  • 'Bellerophon cancellatus is recombined as Protowarthia cancellata'
  • 'Bellerophon leda is recombined as Bucanopsis leda'
  • 'Bellerophon patulus is recombined as Ptomatis patulus'
  • 'Bellerophon punctifrons is recombined as Bucania punctifrons'
  • 'Bellerophon troosti belongs to Bellerophon'
  • 'Bucania bidorsata is recombined as Tetranota bidorsata'
  • 'Bucania halli belongs to Bucania'
  • 'Bucanopsis carinifera belongs to Bucanopsis'
  • 'Carinaropsis (Phragmostoma) cunulae is recombined as Carinaropsis cunulae'
  • 'Carinaropsis (Phragmostoma) cymbula is recombined as Carinaropsis cymbula'
  • 'Cyclonema hamiltoniae is recombined as Sphaerodoma hamiltoniae'
  • 'Cyclonema textile is recombined as Holopea textilis'
  • 'Cyclostoma pervetusta is recombined as Euconia pervetusta'
  • 'Cyrtolites carinatus belongs to Cyrtolites'
  • 'Cyrtolites dyeri is recombined as Phragmolites dyeri'
  • 'Cyrtolites ornatus belongs to Cyrtolites'
  • 'Lophospira wisconsinensis belongs to Lophospira'
  • 'Loxonema hamiltoniae belongs to Loxonema'
  • 'Loxonema terebra belongs to Loxonema'
  • 'Maclurea manitobensis is recombined as Maclurina manitobensis'
  • 'Metoptoma rugosa is recombined as Helcionella rugosa'
  • 'Murchisonia helicteres is recombined as Lophospira helicteres'
  • 'Murchisonia maia is recombined as Hormotomina maia'
  • 'Murchisonia perangulata is recombined as Lophospira perangulata'
  • 'Oxydiscus subacutus belongs to Oxydiscus'
  • 'Phragmolites compressus belongs to Phragmolites'
  • 'Platyceras (Orthonychia) lodiensis is recombined as Palaeocapulus lodiensis'
  • 'Platyceras equilatera is recombined as Palaeocapulus equilateralis'
  • 'Platyostoma lineatum is recombined as Diaphorostoma lineatum'
  • 'Pleurotomaria capillaria is recombined as Gyroma capillaria'
  • 'Pleurotomaria itys is recombined as Euryzone itys'
  • 'Pleurotomaria rotalia is recombined as Trepospira rotalia'
  • 'Pleurotomaria sulcomarginata is recombined as Bembexia sulcomarginata'
  • 'Pleurotomaria trilix is recombined as Lophospira trilix'
  • 'Protowarthia pervoluta belongs to Protowarthia'
  • 'Salpingostoma richmondensis belongs to Salpingostoma'
  • 'Spirifer pseudolineatus is recombined as Reticularia pseudolineata'
  • 'Tetranota obsoleta belongs to Tetranota'
  • 'Tetranota sexcarinata belongs to Tetranota'
  • 'Turbo shumardii is recombined as Turbonopsis shumardii'