Opinions from A. K. Miller and W. M. Furnish 1940

  • 'Adrianites defordi belongs to Adrianites'
  • 'Adrianites dunbari belongs to Adrianites'
  • 'Adrianites marathonensis is a subjective synonym of Waagenoceras dieneri'
  • 'Agathiceras girtyi belongs to Agathiceras'
  • 'Agathiceras texanum is recombined as Texoceras texanum'
  • 'Artinskia huecoensis belongs to Artinskia'
  • 'Atsabites williamsi belongs to Atsabites'
  • 'Cibolites uddeni belongs to Cibolites'
  • 'Daraelites scotti belongs to Daraelites'
  • 'Eoasianites ruzencevi belongs to Eoasianites'
  • 'Eothinites hessensis belongs to Eothinites'
  • 'Epipronorites is a subjective synonym of Neopronorites'
  • 'Eumedlicottia crotonensis is a subjective synonym of Medlicottia whitneyi'
  • 'Eumedlicottia guadalupensis is a subjective synonym of Medlicottia burckhardti'
  • 'Gastrioceras altudense is recombined as Pseudogastrioceras altudense'
  • 'Gastrioceras modestum is recombined as Eoasianites modestus'
  • 'Gastrioceras roadense is recombined as Paragastrioceras roadense'
  • 'Gastrioceras serratum is recombined as Pseudogastrioceras serratum'
  • 'Marathonites delawareanus is a subjective synonym of Texoceras texanum'
  • 'Marathonites sellardsi is recombined as Peritrochia sellardsi'
  • 'Medlicottia burckhardti belongs to Medlicottia'
  • 'Medlicottia kingorum belongs to Medlicottia'
  • 'Medlicottia smithi belongs to Medlicottia'
  • 'Medlicottia whitneyi belongs to Medlicottia'
  • 'Metalegoceras colemanense belongs to Metalegoceras'
  • 'Metalegoceras schucherti belongs to Metalegoceras'
  • 'Neopronorites bakeri belongs to Neopronorites'
  • 'Paraceltites elegans belongs to Paraceltites'
  • 'Paraceltites multicostatus belongs to Paraceltites'
  • 'Paraceltites multiliratus is recombined as Atsabites multiliratus'
  • 'Paraceltites sellardsi belongs to Paraceltites'
  • 'Paragastrioceras beedei is recombined as Pseudogastrioceras beedei'
  • 'Paragastrioceras deciense is recombined as Eoasianites deciensis'
  • 'Paralecanites altudensis is recombined as Paraceltites altudensis'
  • 'Paralegoceras incertum is recombined as Plummerites incertus'
  • 'Paraprolecanites sandbergeri is replaced by Daraelites scotti'
  • 'Peritrochia dunbari belongs to Peritrochia'
  • 'Peritrochia erebus belongs to Peritrochia'
  • 'Perrinites boesei is recombined as Properrinites boesei'
  • 'Perrinites tardus belongs to Perrinites'
  • 'Properrinites denhami belongs to Properrinites'
  • 'Properrinites mooreae belongs to Properrinites'
  • 'Properrinites vicinus belongs to Properrinites'
  • 'Propinacoceras insulcatum belongs to Propinacoceras' according to Smith 1927
  • 'Propinacoceras insulcatum is replaced by Medlicottia smithi'
  • 'Propinacoceras knighti belongs to Propinacoceras'
  • 'Pseudogastrioceras globulosissimum is a subjective synonym of Pseudogastrioceras roadense'
  • 'Rhiphaeites planulatus is recombined as Eothinites planulatus'
  • 'Stacheoceras bowmani is recombined as Popanoceras bowmani'
  • 'Stacheoceras rothi belongs to Stacheoceras'
  • 'Strigogoniatites fountaini belongs to Strigogoniatites'
  • 'Timorites uddeni belongs to Timorites'
  • 'Uddenites oweni belongs to Uddenites'
  • 'Waagenoceras clavatum is a subjective synonym of Waagenoceras guadalupense'
  • 'Waagenoceras dieneri belongs to Waagenoceras'
  • 'Waagenoceras girtyi belongs to Waagenoceras'
  • 'Waagenoceras guadalupense belongs to Waagenoceras'
  • 'Waagenoceras richardsoni is a subjective synonym of Waagenoceras dieneri'
  • 'Xenaspis skinneri belongs to Xenaspis'