Opinions from E. T. Tozer 1980

  • 'Ammonites lilli belongs to Ammonites' according to Guembel 1861
  • 'Ammonites lilli is recombined as Pleurodistichites lilli'
  • 'Arpadites (Dittmarites) hindei is recombined as Pleurodistichites hindei'
  • 'Arpaditidae belongs to Trachycerataceae'
  • 'Cyrtopleuritidae belongs to Trachycerataceae'
  • 'Distichitidae belongs to Trachycerataceae'
  • 'Dittmarites trailli is recombined as Pleurodistichites trailli'
  • 'Eoprotrachyceras belongs to Protrachyceratinae'
  • 'Eoprotrachyceras matutinum belongs to Eoprotrachyceras'
  • 'Himavatites burlingi is recombined as Neohimavatites burlingi'
  • 'Himavatites canadensis is recombined as Neohimavatites canadensis'
  • 'Neohimavatites belongs to Cyrtopleuritidae'
  • 'Pleurodistichites belongs to Distichitidae'
  • 'Pleurodistichites stotti belongs to Pleurodistichites'
  • 'Protrachyceratinae belongs to Arpaditidae'
  • 'Pseudotibetites belongs to Sirenitinae'
  • 'Pseudotibetites pax belongs to Pseudotibetites'
  • 'Pterosirenites belongs to Sirenitinae'
  • 'Pterosirenites auritus belongs to Pterosirenites'
  • 'Sirenitinae belongs to Arpaditidae'
  • 'Trachyceras (Protrachyceras) dunni is recombined as Eoprotrachyceras dunni'
  • 'Trachyceras (Protrachyceras) lahontanum is recombined as Eoprotrachyceras lahontanum'
  • 'Trachyceras americanum belongs to Trachyceras' according to Mojsisovics 1882
  • 'Trachyceras americanum is recombined as Eoprotrachyceras americanum'
  • 'Trachyceras curionii belongs to Trachyceras' according to Mojsisovics 1882
  • 'Trachyceras curionii is recombined as Eoprotrachyceras curionii'
  • 'Trachyceras margaritosum is recombined as Eoprotrachyceras margaritosum'
  • 'Trachyceras meeki is recombined as Eoprotrachyceras meeki'
  • 'Trachyceras meeki belongs to Trachyceras' according to Mojsisovics 1882
  • 'Trachyceras subasperum is recombined as Eoprotrachyceras subasperum'