Opinions from J. M. Malinky 1990

  • 'Circotheca belongs to Hyolitha'
  • 'Crestjahitidae belongs to Hyolithida'
  • 'Crestjahitus belongs to Crestjahitidae'
  • 'Crestjahitus compressus belongs to Crestjahitus' according to Syssoiev 1968
  • 'Crestjahitus compressus belongs to Crestjahitus'
  • 'Crestjahitus ornatus belongs to Crestjahitus' according to Syssoiev 1968
  • 'Decoritheca belongs to Novitatidae'
  • 'Hallotheca belongs to Hyolithidae'
  • 'Hyolitha was reranked as a class and belongs to Mollusca'
  • 'Hyolithes aliger belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes aliger belongs to Hyolithes'
  • 'Hyolithes aplatus belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes canalis belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes canalis is recombined as Decoritheca canalis' according to Malinky 1987
  • 'Hyolithes canalis is recombined as Decoritheca canalis'
  • 'Hyolithes cariniferus belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes crebescens is recombined as Linevitus crebescens' according to Qian 1983
  • 'Hyolithes crebescens belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes crebescens is recombined as Novakotheca crebescens'
  • 'Hyolithes cybele belongs to Hyolithes' according to Walcott 1905
  • 'Hyolithes cybele is recombined as Nevadotheca cybele'
  • 'Hyolithes daphnis belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes delia belongs to Hyolithes' according to Walcott 1905
  • 'Hyolithes delia belongs to Hyolithes'
  • 'Hyolithes distortus belongs to Hyolithes' according to Syssoiev 1962
  • 'Hyolithes distortus is recombined as Crestjahitus distortus'
  • 'Hyolithes endoi belongs to Hyolithes' according to Howell 1946
  • 'Hyolithes endoi belongs to Hyolithes'
  • 'Hyolithes excellens is recombined as Nevadotheca excellens'
  • 'Hyolithes figuratus is recombined as Tuojdachithes figuratus' according to Missarzhevsky 1969
  • 'Hyolithes figuratus is recombined as Crestjahitus figuratus'
  • 'Hyolithes fuchouensis belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes fuchouensis belongs to Hyolithes'
  • 'Hyolithes kuantungensis belongs to Hyolithes'
  • 'Hyolithes kuantungensis belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes mantouensis belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes mantouensis belongs to Hyolithes'
  • 'Hyolithes paishanensis belongs to Hyolithes' according to Endo 1937
  • 'Hyolithes princeps belongs to Hyolithes' according to Billings 1872
  • 'Hyolithes princeps is recombined as Nevadotheca princeps'
  • 'Hyolithes sondai belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes sondai belongs to Hyolithes'
  • 'Hyolithes tenuis belongs to Hyolithes' according to Resser and Endo 1937
  • 'Hyolithes whitei belongs to Hyolithes' according to Resser 1938
  • 'Hyolithes whitei is recombined as Nevadotheca whitei'
  • 'Hyolithida belongs to Hyolitha'
  • 'Hyolithidae belongs to Hyolithida'
  • 'Linevitus belongs to Hyolitha'
  • 'Nevadotheca belongs to Hyolithidae'
  • 'Nevadotheca heckeli belongs to Nevadotheca' according to Malinky 1988
  • 'Nevadotheca heckeli belongs to Nevadotheca'
  • 'Novakotheca belongs to Hyolithidae'
  • 'Novitatidae belongs to Orthothecida'
  • 'Orthotheca was reranked as Hyolithes (Orthotheca) and belongs to Hyolithes' according to Resser and Endo 1937
  • 'Orthotheca belongs to Orthothecidae'
  • 'Orthotheca cyrene is recombined as Decoritheca cyrene'
  • 'Orthotheca daulis belongs to Orthotheca'
  • 'Orthotheca daulis belongs to Orthotheca' according to Walcott 1905
  • 'Orthotheca delphus belongs to Orthotheca' according to Resser and Endo 1937
  • 'Orthotheca delphus is recombined as Crestjahitus delphus'
  • 'Orthotheca delphus is recombined as Hyolithes delphus' according to Resser and Endo 1937
  • 'Orthotheca doris belongs to Orthotheca'
  • 'Orthotheca doris belongs to Orthotheca' according to Walcott 1905
  • 'Orthotheca glabra belongs to Orthotheca' according to Resser and Endo 1937
  • 'Orthotheca glabra is recombined as Decoritheca glabrus'
  • 'Orthotheca glabra is recombined as Hyolithes glabrus' according to Resser and Endo 1937
  • 'Orthothecidae belongs to Orthothecida'
  • 'Semielliptotheca belongs to Hyolitha'