Opinions from M. A. Murphy 1975

  • 'Acrioceras starrkingi is recombined as Toxoceratoides starrkingi'
  • 'Ammonites phestus is recombined as Eulytoceras phestum'
  • 'Ammonites thetys is recombined as Phylloceras thetys'
  • 'Anahamulina belongs to Ptychoceratidae'
  • 'Ancyloceras belongs to Ancyloceratidae'
  • 'Ancyloceras elephas belongs to Ancyloceras'
  • 'Ancyloceras thomeli belongs to Ancyloceras'
  • 'Ancyloceratidae belongs to Ancyloceratina'
  • 'Barremites belongs to Desmoceratidae'
  • 'Cheloniceras belongs to Cheloniceratinae'
  • 'Cheloniceratinae belongs to Douvilleiceratidae'
  • 'Eulytoceras belongs to Lytoceratidae'
  • 'Euptychoceras belongs to Ptychoceratidae'
  • 'Euptychoceras jordanese belongs to Euptychoceras'
  • 'Heinzia was reranked as Pulchellia (Heinzia) and belongs to Pulchellia'
  • 'Hemihoplites belongs to Hemihoplitidae'
  • 'Hemihoplites popenoei belongs to Hemihoplites'
  • 'Heteroceras belongs to Heteroceratidae'
  • 'Heteroceras jeletzkyi belongs to Heteroceras'
  • 'Hoplocrioceras wintunium is recombined as Shasticrioceras wintunium'
  • 'Lytoceras belongs to Lytoceratidae'
  • 'Lytoceras (Saturnoceras) saturnale is recombined as Lytoceras saturnale'
  • 'Lytoceratida belongs to Cephalopoda'
  • 'Lytoceratidae belongs to Lytoceratina'
  • 'Lytoceratina belongs to Lytoceratida'
  • 'Partschiceras belongs to Phylloceratidae'
  • 'Phylloceras belongs to Phylloceratidae'
  • 'Phylloceras occidentale is recombined as Partschiceras occidentale'
  • 'Phylloceratidae belongs to Phylloceratida'
  • 'Phylloceratitida is corrected as Phylloceratida and belongs to Cephalopoda'
  • 'Pseudocrioceras stentor is recombined as Toxoceras stentor'
  • 'Pulchellia belongs to Pulchelliidae'
  • 'Pulchellia popenoei is recombined as Pulchellia (Heinzia) popenoei'
  • 'Pulchelliidae belongs to Ammonitina'
  • 'Shasticrioceras hesperum is a subjective synonym of Shasticrioceras poniente'
  • 'Shasticrioceras hesperum nipponicum belongs to Shasticrioceras hesperum' according to Matsumoto 1947
  • 'Shasticrioceras hesperum nipponicum is a subjective synonym of Shasticrioceras poniente'
  • 'Shasticrioceras patricki belongs to Shasticrioceras'
  • 'Shasticrioceras poniente belongs to Shasticrioceras'
  • 'Shasticrioceras roddai belongs to Shasticrioceras'
  • 'Shasticrioceras whitneyi belongs to Shasticrioceras'
  • 'Toxoceras blandi belongs to Toxoceras'
  • 'Toxoceratoides corae belongs to Toxoceratoides'
  • 'Toxoceratoides greeni belongs to Toxoceratoides'
  • 'Toxoceratoides saulae belongs to Toxoceratoides'